GB2564176A - Wheel bearing - Google Patents

Wheel bearing Download PDF

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Publication number
GB2564176A
GB2564176A GB1803215.1A GB201803215A GB2564176A GB 2564176 A GB2564176 A GB 2564176A GB 201803215 A GB201803215 A GB 201803215A GB 2564176 A GB2564176 A GB 2564176A
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United Kingdom
Prior art keywords
wheel bearing
members
bearing member
wheel
bearing members
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GB1803215.1A
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GB201803215D0 (en
Inventor
Lars Johansson Thomas
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Ltj As
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Ltj As
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/55—Systems consisting of a plurality of bearings with rolling friction with intermediate floating or independently-driven rings rotating at reduced speed or with other differential ball or roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/02—Sliding-contact bearings
    • F16C23/04—Sliding-contact bearings self-adjusting
    • F16C23/043—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0614—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part of the joint being open on two sides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/18—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with floating brasses or brushing, rotatable at a reduced speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/26—Systems consisting of a plurality of sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
    • F16C19/28—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with two or more rows of rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/02—Sliding-contact bearings
    • F16C23/04—Sliding-contact bearings self-adjusting
    • F16C23/043—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings
    • F16C23/045—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings for radial load mainly, e.g. radial spherical plain bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Support Of The Bearing (AREA)

Abstract

A wheel bearing assembly may be a plain, Figure 1, ball, single or double row taper roller bearing, Figures 3 and 4. The bearing assembly may include an outer member 201which may located within a housing, a plurality of ball bearings 202, 206 is located between said outer member and an intermediate member 203. A further plurality of bearings 204, 207 is located between the opposing face of the intermediate member and an inner track 205. The inner track may be fitted to an axle. The radially stacked array of concentric balls and races allows each race to rotate with respect to each other. The objective is to reduce friction. Seals may be provided to protect the bearing.

Description

WHEEL BEARING
Technical field
The present invention relates to the field of wheel bearings and can be used where there is a need for a wheel bearing between a fixed body and a wheel. The wheel bearing is especially suitable for high rotational speeds and/or where it is desirable with low friction.
Background
The present invention relates to any wheel bearing, but especially wheel bearings applied between a fixed body and a wheel. In a wheel bearing between a fixed body and a wheel it is difficult to combine low friction with high rotational speed and high load. High friction leads to high temperatures, and high temperatures might damage the lubricant and this yield shorted service life for the wheel bearing.
Known wheel bearing have a relatively short lifetime due to friction and wear. It is desirable with extended service life and a more energy efficient solution.
Patent US1494695 (A) and US2475493 (A) utilizes a low friction roller- and ball bearing with parallel rows of rotating elements. Patent US7954600 B2 has the aim to reduce power losses in an internal combustion engine. Patent US1494695 (A) and US2475493 (A) utilizes a low friction roller- and ball bearing with parallel rows of rotating elements. Patent US 2012051679 A utilizes an aircraft spherical bearing assembly comprises a first part which is in sliding contact with an intermediate part for sliding therebetween to form a spherical joint.
Patent GB 2284237 A utilizes A spherical bearing comprises an outer housing having an inner concave surface, an inner sleeve, and an intermediate ball composed of a substantially soft compressible composite material.
Patent GB 230974 A utilizes Self - aligning bearings, such as that between a crank pin and tihe sleeve valve A of an internal combustion engine.
GB 330900 A describes self-aligning spherical joints or bearings. Patent WO 2016188526 A relates to a method for producing a spherical bearing, comprising an inner ring, which has a convexly curved spherical sliding surface, and an outer ring, which surrounds the inner ring.
The design of today's wheel bearings makes it difficult to preform condition monitoring.
An object of the present invention is to deal with the previously mentioned disadvantages.
A further object with the present invention is to provide a wheel bearing suitable for high rotational speed.
It is a particular object of the present invention to provide a wheel bearing that reduces friction.
A second particular object with the present invention is to provide a wheel bearing where the different bearings rows can be condition monitored when the wheel bearing is both in and out of service.
Short summary of the invention
This invention reduces friction, wear and tear through a wheel bearing comprising inner and outer wheel bearing members wherein the wheel bearing members are rotatable with respect to each other. This yields a reduced relative motion at the bearing interface. This leads to an extended service life, a reduction in friction and enables higher rotational speeds.
An object of the present invention is to deal with the previously mentioned disadvantages.
It is a particular object of the present invention to provide a wheel bearing with improved friction, wear and tear properties and an extended service life.
The invention is a wheel bearing comprising:
- at least one inner wheel bearing member (110), and
- at least one outer wheel bearing member (101), wherein the inner wheel bearing member is arranged to be fixed to a shaft, wherein the wheel bearing comprises a first intermediate wheel bearing member (109) that is radially stacked between the inner and outer wheel bearing members (110, 101), wherein the first intermediate wheel bearing member (109) is rotatable relative the inner and outer wheel bearing members.
Figure captions
An illustrative and non-limiting embodiment of the present invention will be described below in detail with reference to the appended drawings, in which:
Figures 1-4 illustrates the wheel bearing comprising inner, outer and intermediate wheel bearing members.
Embodiments of the invention
An embodiment of the invention illustrated by figure 1 is a partial cross section view of a wheel bearing comprising inner 110, outer 101 and a multiple of intermediate 102-109 wheel bearing members to be used between a fixed body and a wheel. The first inner wheel bearing member 110 is configured to be in contact with the first intermediate wheel bearing member and arranged to be fixed to a shaft. The first intermediate wheel bearing member 109 is radially stacked between the inner wheel bearing member and a second intermediate wheel bearing member 108. The following (107-102) intermediate wheel bearing members are radially stacked between the second intermediate and outer wheel bearing members. The intermediate wheel bearing members are plain bearings and should have a substantially common frictional moment so that the circumferential speeds of the plain bearings are substantially the same. If the frictional moment increases from the first to the last of the plain bearing the circumferential speed decreases from the first to the last of the plain bearings.
An embodiment of the invention illustrated by figure 2 is a partial cross section view of a wheel bearing comprising inner 205, outer 201 and intermediate 203 wheel bearing members to be used between a fixed body rotating body. The first inner wheel bearing member 205 is configured to be in contact with a double inner row of rolling elements 204 and 207 and a wheel. The inner wheel bearing member is arranged to be fixed to an axle. The intermediate wheel bearing member 203 is radially stacked between a double inner row 204 and 206 and a double outer row 202 and 206 of rolling elements. The intermediate wheel bearing member is rotatable relative the outer and inner bearing bearing members. The outer bearing bearing member 201 is in contact with double outer row of rolling elements 202 and 206 and the wheel bearing member in contact with the fixed body.
There are different configurations of the wheel bearing, in one configuration the inner ring rotates and the outer ring is fixed. In the other configuration, the outer ring is rotating and the inner is fixed.
The inner and outer rows of rotating elements should have a substantially common frictional moment so the circumferential speeds of the rows of rotating elements are substantially the same. If the frictional moment increases from the inner to the outer rows of rotating elements the circumferential speed decreases from the inner to the outer rotating elements.
An embodiment of the invention illustrated by figure 3 is a partial cross section view of a wheel bearing comprising inner 306, outer 302 and intermediate 304 wheel bearing members to be used between a fixed body and a rotating body, such as a vehicle wheel axle and a suspension. The first inner wheel bearing member 306 is configured to be in contact with a double inner row of rolling elements 305 and 307.The inner wheel bearing member is arranged to be fixed to an axle. The intermediate wheel bearing member 304 is radially stacked between a double inner row 305 and 307 and a double outer row 303 and 301 of rolling elements. The intermediate wheel bearing member is rotatable relative the outer and inner wheel bearing members. The outer wheel bearing member 302 is in contact with double outer row of rolling elements 303 and 301 and the wheel bearing member in contact with the vehicle suspension.
There are different configurations of the wheel bearing, in one configuration the inner ring rotates and the outer ring is fixed. In the other configuration, the outer ring is rotating and the inner is fixed.
The inner and outer rows of rotating elements should have a substantially common frictional moment so the circumferential speeds of the rows of rotating elements are substantially the same. If the frictional moment increases from the inner to the outer rows of rotating elements the circumferential speed decreases from the inner to the outer rotating elements.
An embodiment of the invention illustrated by figure 4 is similar to the embodiment illustrated in figure 3 with the exception that it is a single row bearing.
It should be noted that the embodiments illustrated and described were given merely by way of non-limiting indicative examples and that modifications and variations are possible within the scope of the invention as defined by the appended claims. Thus, the invention applies not only to rollers but also other rotational elements, such as balls. It should also be easily understood that the rotating elements are kept separated by a cage and that the bearing bearing comprises seals.
The described wheel bearing reduces friction, wear and tear by the use of a wheel bearing comprising inner and outer wheel bearing members wherein the wheel bearing members are rotatable with respect to each other. The wheel bearing further comprises a first intermediate wheel bearing member that is radially stacked between the inner and outer rotating elements and rotatable relative the inner and outer wheel bearing members. This results in a reduced relative motion between two adjacent wheel bearing members. This leads to an extended service life, a reduction in friction and enables a higher maximal speed. The definition parallel connected wheel bearing members means, that the wheel bearing has at least two wheel bearing members that are rotatable relative each other.
Parallel connected wheel bearing members:
The frictional moment (Equation 1) for n parallel connected wheel bearing members can be expressed by M (Eq.l):
111 1 — = — + — H— — (Equation 1) M M2 Mn n
As follows from Equation 1, the frictional moment is inversely proportional to the sum of the individual frictional moment components in a device with parallel connected wheel bearing members. Lowest frictional moment occurs when; Mi = M2 = Mn.
If one of the individual rotating wheel bearing members during use has higher friction than any of the others, it results in a lower relative speed for that individual wheel bearing member and higher relative speeds for the other individual rotating members. The friction loss will be substantially the same for all relatively individual rotating wheel bearing members (Eq.2).
(Equation 2)

Claims (8)

Claims
1. Awheel bearing comprising:
- at least one inner wheel bearing member (110), and
- at least one outer wheel bearing member (101), wherein said inner wheel bearing member is arranged to be fixed to a shaft, characterized in that the wheel bearing comprises a first intermediate wheel bearing member (109) that is radially stacked between said inner and outer wheel bearing members (110, 101), wherein said first intermediate wheel bearing member (109) is rotatable relative said inner and outer wheel bearing members, wherein the wheel bearing comprises a second intermediate bearing member (108) that is radially stacked between said inner and outer wheel bearing members, wherein said second wheel bearing member is rotatable relative said inner, outer and first intermediate wheel bearing members.
2. The wheel bearing according to claim 2, wherein said first and second intermediate wheel bearing members have a substantially common frictional moment so that the circumferential speeds of said wheel bearing members are substantially the same.
3. The wheel bearing according claim 1, wherein said wheel bearing comprises at least an inner row with rotating elements (305) and at least an outer row with rotating elements (303), that are radially stacked between said inner and outer (306, 302) bearing members, wherein said rotating rows of rotating elements are separated from each other by said first intermediate wheel bearing member (304).
4. The wheel bearing according to any of the preceding claims, wherein the wheel bearing comprises at least one seal.
5. The wheel bearing according to any of the preceding claims, wherein at least one row of said rotating element are balls.
6. The wheel bearing according to any of the preceding claims, wherein at least one row of said rotating element are rollers.
7. The wheel bearing according to claim 1-3, wherein the circumferential speed decreases from the inner to the outer rotating elements.
8. The wheel bearing according to claim 1, wherein said intermediate wheel bearing members are plain bearings.
Intellectual Property Office
GB1803215.1A 2017-03-01 2018-02-27 Wheel bearing Withdrawn GB2564176A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20170306A NO20170306A1 (en) 2017-03-01 2017-03-01 Wheel bearing

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Publication Number Publication Date
GB201803215D0 GB201803215D0 (en) 2018-04-11
GB2564176A true GB2564176A (en) 2019-01-09

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NO (1) NO20170306A1 (en)
SE (1) SE1830066A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475493A (en) * 1947-04-15 1949-07-05 Harry L Gordon Antifriction ball bearing
US20030123767A1 (en) * 2002-01-02 2003-07-03 Fite Robert J. Redundant ball bearing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB230974A (en) * 1924-02-22 1925-03-26 Harry Ralph Ricardo Improvements in or relating to self-aligning spherical joints or bearings
GB330900A (en) * 1929-03-18 1930-06-18 Harry Ralph Ricardo Improvements in or relating to self-aligning spherical joints or bearings
GB2284237A (en) * 1993-11-30 1995-05-31 Rose Bearings Ltd Spherical bearing
GB201014213D0 (en) * 2010-08-26 2010-10-06 Airbus Operations Ltd Aircraft bearing assembly
DE102015209760A1 (en) * 2015-05-28 2016-12-01 Schaeffler Technologies AG & Co. KG Method for producing a spherical plain bearing and associated spherical plain bearing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475493A (en) * 1947-04-15 1949-07-05 Harry L Gordon Antifriction ball bearing
US20030123767A1 (en) * 2002-01-02 2003-07-03 Fite Robert J. Redundant ball bearing

Also Published As

Publication number Publication date
SE1830066A1 (en) 2018-09-02
NO342607B1 (en) 2018-06-18
NO20170306A1 (en) 2018-06-18
GB201803215D0 (en) 2018-04-11

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