GB2199621A - Rolling bearings - Google Patents

Rolling bearings Download PDF

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Publication number
GB2199621A
GB2199621A GB08728584A GB8728584A GB2199621A GB 2199621 A GB2199621 A GB 2199621A GB 08728584 A GB08728584 A GB 08728584A GB 8728584 A GB8728584 A GB 8728584A GB 2199621 A GB2199621 A GB 2199621A
Authority
GB
United Kingdom
Prior art keywords
ring
thread
bearing
shoulder
loose
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08728584A
Other versions
GB8728584D0 (en
GB2199621B (en
Inventor
Werner Jacob
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF GmbH
Original Assignee
SKF GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE19863643278 priority Critical patent/DE3643278A1/en
Application filed by SKF GmbH filed Critical SKF GmbH
Publication of GB8728584D0 publication Critical patent/GB8728584D0/en
Publication of GB2199621A publication Critical patent/GB2199621A/en
Application granted granted Critical
Publication of GB2199621B publication Critical patent/GB2199621B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings 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
    • F16C19/34Bearings 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
    • F16C19/38Bearings 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
    • F16C19/383Bearings 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
    • F16C19/385Bearings 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
    • F16C19/386Bearings 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings 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
    • F16C19/24Bearings 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
    • F16C19/26Bearings 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 a single row of rollers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06Ball or roller bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/58Raceways; Race rings
    • F16C33/583Details of specific parts of races
    • F16C33/585Details of specific parts of races of raceways, e.g. ribs to guide the rollers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/58Raceways; Race rings
    • F16C33/60Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • F16C33/605Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings with a separate retaining member, e.g. flange, shoulder, guide ring, secured to a race ring, adjacent to the race surface, so as to abut the end of the rolling elements, e.g. rollers, or the cage
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C43/00Assembling bearings
    • F16C43/04Assembling rolling-contact bearings
    • F16C43/06Placing rolling bodies in cages or bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50Positive connections
    • F16C2226/60Positive connections with threaded parts, e.g. bolt and nut connections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2240/00Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/70Diameters; Radii
    • F16C2240/80Pitch circle diameters [PCD]
    • F16C2240/82Degree of filling, i.e. sum of diameters of rolling elements in relation to PCD
    • F16C2240/84Degree of filling, i.e. sum of diameters of rolling elements in relation to PCD with full complement of balls or rollers, i.e. sum of clearances less than diameter of one rolling element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00Application independent of particular apparatuses
    • F16C2300/02General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned

Abstract

A rolling bearing has at least one shoulder (5) which is loose and is secured to the associated bearing ring (6) directly or indirectly through a thread. In order to simplify considerably the manufacture of such a rolling bearing, an annular groove (10) is provided on the bearing ring (6) in which groove there is inserted a ring (12) which is provided with a thread (11) and onto which the shoulder (5) is screwed. The loose shoulder may alternatively be held in place by a fluted nut (22, Fig.2). <IMAGE>

Description

Rolling Bearing This invention relates to a rolling bearing of the type having at least one shoulder which is made loose and is secured to the associated bearing ring or the like directly or indirectly via a thread.
In order to facilitate the assembly of rolling bearings and also to be able to adjust the bearing clearance of the rolling bearing. it is known to make at least one of the shoulders loose and to secure this to the associated bearing ring after the rolling bodies have been introduced.
Thus it is known to make one of the shoulders of a rolling bearing loose and with a thread and to screw this onto a thread machined directly in a portion of the bearing ring (FR-PS 363 128).
Furthermore, it is known to displace the loose shoulder of a rolling bearing towards the rolling bodies by means of a separate annular nut in order to adjust the rolling bodies without clearance (GB-PS 341 363).
It is common to both constructions that the thread for securing the shoulder is machined directly in the bearing ring which generally has to be hardened in order to achieve the necessary carrying capacity of the bearing. The threaded portion itself should generally not be hardened because otherwise the thread is stripped, a requirement for the fulfilling of which, special measures have to be taken during manufacture. Thus this threaded portion has to be masked during the hardening, for example, or be annealed again after the hardening. For these reasons, these constructions have not been able to become established in practice.
It is the object of the present invention to provide a rolling bearing of the type mentioned at the beginning which is considerably simpler to manufacture.
According to the invention, this is solved in that an annular groove is provided on the bearing ring, in which groove there is inserted a ring or the like provided with a thread onto which is screwed the loose shoulder or a fluted nut locating the loose shoulder.
As a result of the use of a separate ring provided with a thread, it is not necessary to machine the thread directly in the bearing ring and to take precautions to see that it remains unhardened during the hardening of the bearing ring. The bearing ring is merely provided with an annular groove in which the separately manufactured ring provided with the thread is inserted after the bearing ring has been finish-machined.
The problem that a thread cannot be machined directly in the bearing ring or can only be so with great expense may also arise with rolling bearings of other materials which are difficult to machine, for example of ceramic. The subject of the invention likewise leads to considerable advantages for such bearings if the ring provided with the thread is made of a material which can be machined more easily.
In order to facilitate the insertion of the ring provided with the thread, in a preferred embodiment of the invention, it is slit at least at one point of the circumference. As a result, it is possible to expand the ring provided with the thread and to allow it to spring into the annular groove provided in the peripheral surface of the bearing ring. When the loose shoulder is secured to the outer ring, the ring provided with the thread is contracted and springs open again after being inserted in the bore in the region of the annular groove.
It is easily possible, and with large dimensions it is advisable, to divide the ring provided with the thread into a plurality of segments. As a result, assembly is considerably facilitated. Corresponding projections and recesses may be provided in order to be able to fix the individual parts to one another.
In order generally to prevent joint rotation of the ring provided with a thread, it is secured against rotation by suitable means. Notching is sufficient for this in the simplest case.
By means of the invention, it is possible to provide rolling bearings which comprise a large number of rolling bodies, that is to say have a high radial and axial carrying capacity. It is likewise possible to adjust the (axial) bearing clearance accurately so that a precise location and guiding of the parts to be mounted is achieved. In addition, when manufacturing the rolling bearing from materials which are difficult to machine, a solution is provided whereby a shoulder can be secured easily and securely to the bearing ring without great manufacturing expense.
The present invention will be described in more detail below with reference to two examples of embodiment illustrated in the drawing.
Figure 1 shows a single-row full-type cylindrical roller bearing with four shoulders, one of which is made loose, and Figure 2 shows a double-row taper roller bearing wherein one of the guide shoulders of the inner ring is made loose.
The cylindrical roller bearing shown in Figure 1 consists of an inner ring 3 provided with two fixed shoulders 1 and 2 and an outer ring 6 provided with a fixed shoulder 4 and a loose shoulder 5, and the cylindrical rollers 7 disposed between the bearing rings 3 and 6. In order to secure the loose shoulder 5 there is machined in the portion 9 which is offset in relation to the track 8 of the outer ring 6, an annular groove 10 in which the slit ring 12 provided with an internal thread 11 is inserted.
The loose shoulder 5 provided with an external thread 13 is screwed into the internal thread 11 until its end face comes to bear bear against the end faces of the rollers 7. The loose shoulder 5 can be secured against rotation by a suitable securing means after being screwed in.
In Figure 2, a double-row taper roller bearing is illustrated, the inner ring 14 of which is provided at one end 15 with an offset portion 17 which is smaller in diameter in comparison with the track 16. Machined in this offset portion 17 is an annular groove 18 in which a ring 20 provided with an external thread 19 is inserted. Screwed onto this ring 20 is a flutted nut 22 which is provided with an internal thread 21 and which presses the loose guide shoulder 23 against the end faces of the taper rollers 24. As a result, not only are the taper rollers 24 guided axially but also the bearing clearance in the taper roller bearing can be adjusted.

Claims (4)

CLAIMS:
1. A rolling bearing having at least one shoulder which is made loose and is secured to the associated bearing ring or the like directly or indirectly through a thread, characterised in that an annular groove (10,18) is provided on the bearing ring (6, 14), in which groove there is inserted a ring (12, 20) or the like provided with a thread (11, 19) onto which is screwed the loose shoulder (5) or a fluted nut (22) or the like locating the loose shoulder.
2. A rolling bearing according to Claim 1, characterised in that the ring (12, 20) provided with a thread (11, 19) is slit at least at one point of the circumference.
3. A rolling bearing according to Claim 1, characterised in that the ring (12, 20) provided with a thread (11, 19) is divided into a plurality of segments.
4. A rolling bearing substantially as hereinbefore described with reference to Figure 1 or Figure 2 of the accompanying drawing.
GB8728584A 1986-12-18 1987-12-07 Rolling bearing Expired - Fee Related GB2199621B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863643278 DE3643278A1 (en) 1986-12-18 1986-12-18 ROLLER BEARING

Publications (3)

Publication Number Publication Date
GB8728584D0 GB8728584D0 (en) 1988-01-13
GB2199621A true GB2199621A (en) 1988-07-13
GB2199621B GB2199621B (en) 1990-10-24

Family

ID=6316494

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8728584A Expired - Fee Related GB2199621B (en) 1986-12-18 1987-12-07 Rolling bearing

Country Status (4)

Country Link
JP (1) JPS63172010A (en)
DE (1) DE3643278A1 (en)
FR (1) FR2608698B1 (en)
GB (1) GB2199621B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374560A2 (en) * 1988-12-19 1990-06-27 INA Wälzlager Schaeffler KG Mounting of a shaft in a roller bearing
FR2645928A1 (en) * 1989-04-15 1990-10-19 Skf Gmbh PRECONTRAINT TWO-ROW BONDED CONTACT BEARING AND METHOD FOR ASSEMBLING THE SAME
US6579011B2 (en) 2000-11-23 2003-06-17 Skf Gmbh Antifriction bearing
WO2006050833A1 (en) * 2004-11-09 2006-05-18 Schaeffler Kg Tripod roller
EP2360383A1 (en) 2010-02-24 2011-08-24 Siemens Aktiengesellschaft Bearing system for a wind turbine rotor
CN102182756A (en) * 2011-03-23 2011-09-14 浙江大学 Cylindrical roller bearing capable of bearing bidirectional axial force
US11085492B2 (en) 2017-11-28 2021-08-10 Vestas Wind Systems A/S Roller bearing

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19803929A1 (en) * 1998-02-02 1999-08-05 Schaeffler Waelzlager Ohg Roller bearing arrangement for components moving in azimuth
DE10153438C1 (en) * 2001-10-30 2003-03-20 Skf Ab Adjustable multi-row roller bearing has opening angle of roller cone less than six degrees and half that of cone of first and second outer rings
DE102005062649B4 (en) * 2005-12-23 2009-11-26 Aktiebolaget Skf roller bearing
DE102006048079A1 (en) * 2006-10-10 2008-04-17 Schaeffler Kg Radial cylindrical roller bearings
DE102007002357A1 (en) * 2007-01-16 2008-07-17 Schaeffler Kg Multi-part pocket cage for a roller bearing and roller bearing with the pocket cage
AT537287T (en) * 2008-06-27 2011-12-15 Oerlikon Textile Gmbh & Co Kg Needle machine
DE102012221297B4 (en) 2012-11-22 2020-07-02 Aktiebolaget Skf Bearing arrangement
DE102015212311A1 (en) * 2015-07-01 2017-01-05 Aktiebolaget Skf bearing arrangement
DE102018112427A1 (en) * 2018-05-24 2019-11-28 Schaeffler Technologies AG & Co. KG Cylindrical roller bearings

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR363128A (en) * 1906-02-10 1906-07-21 Louis Boudreaux Bearing device for bushings
GB341363A (en) * 1930-04-28 1931-01-15 Frederick Cameron Cowburn Improvements in or relating to roller bearings and the like
GB579798A (en) * 1945-05-18 1946-08-15 British Timken Ltd Improvements relating to means for adjusting or setting anti-friction bearings
US2606799A (en) * 1950-08-14 1952-08-12 Timken Roller Bearing Co Adjustable double roller bearing
FR1308938A (en) * 1961-12-27 1962-11-09 Schaeffler Ohg Industriewerk Axial tensioning device for profiled raceways
JPS5021155A (en) * 1973-05-26 1975-03-06
IT1174435B (en) * 1977-10-27 1987-07-01 Skf Kugellagerfabriken Gmbh Rolling bearing
US4319789A (en) * 1980-03-13 1982-03-16 Trw Inc. Roller bearing and anti-skewing system therefor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374560A2 (en) * 1988-12-19 1990-06-27 INA Wälzlager Schaeffler KG Mounting of a shaft in a roller bearing
EP0374560A3 (en) * 1988-12-19 1990-11-28 INA Wälzlager Schaeffler KG Mounting of a shaft in a roller bearing
FR2645928A1 (en) * 1989-04-15 1990-10-19 Skf Gmbh PRECONTRAINT TWO-ROW BONDED CONTACT BEARING AND METHOD FOR ASSEMBLING THE SAME
US6579011B2 (en) 2000-11-23 2003-06-17 Skf Gmbh Antifriction bearing
WO2006050833A1 (en) * 2004-11-09 2006-05-18 Schaeffler Kg Tripod roller
CN101072956B (en) * 2004-11-09 2010-04-14 舍夫勒两合公司 Tripod roller and constant speed movable joint used for tripod structure
US7713130B2 (en) 2004-11-09 2010-05-11 Ifa-Technologies Gmbh Haldersleben Tripod-roller
EP2360383A1 (en) 2010-02-24 2011-08-24 Siemens Aktiengesellschaft Bearing system for a wind turbine rotor
CN102182756A (en) * 2011-03-23 2011-09-14 浙江大学 Cylindrical roller bearing capable of bearing bidirectional axial force
US11085492B2 (en) 2017-11-28 2021-08-10 Vestas Wind Systems A/S Roller bearing

Also Published As

Publication number Publication date
GB8728584D0 (en) 1988-01-13
FR2608698B1 (en) 1994-05-06
GB2199621B (en) 1990-10-24
FR2608698A1 (en) 1988-06-24
JPS63172010A (en) 1988-07-15
DE3643278A1 (en) 1988-06-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941207