CN201159245Y - Triplex row cylindrical roller bearing for roller mill - Google Patents
Triplex row cylindrical roller bearing for roller mill Download PDFInfo
- Publication number
- CN201159245Y CN201159245Y CNU2007200163521U CN200720016352U CN201159245Y CN 201159245 Y CN201159245 Y CN 201159245Y CN U2007200163521 U CNU2007200163521 U CN U2007200163521U CN 200720016352 U CN200720016352 U CN 200720016352U CN 201159245 Y CN201159245 Y CN 201159245Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- outer ring
- row cylindrical
- ring
- cylindrical roller
- 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.)
- Expired - Lifetime
Links
Images
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
- 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
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model belongs to the bearing technical field, relating to a three-row cylindrical roller bearing for rolling mills, which is composed of an outer ring, a roller, a middle space ring, an inner ring, a retaining bracket and a semi-retaining bracket. The thickness of the wall of the outer ring is 35-60mm, and a composite tissue layer of martensite and ferrito martensite is uniformly arranged on a surface layer of the outer ring. The three-row cylindrical roller bearing increases the wearability of the outer edge of the bearing, and resolves the problems of wear of the outer edge of the bearing and short service life.
Description
Technical field
The utility model belongs to technical field of bearings, relates to a kind of three-row cylindrical roller bearing that is used for milling train.
Background technique
Cold rolling mill rolling accuracy height, back-up roll adopts three-row cylindrical roller bearing, because precision is high and rolling load is big, the reason of outer ring surface hardness and centre hardness, the outer ring external diameter weares and teares and causes precise decreasing, is to improve precision, will the grinding external diameter, cause reduce the working life of bearing.The user can't use.The respective shaft bearing outer-ring that has is cracked, and bearing can't use.
Summary of the invention
In order to improve outer ring external diameter abrasiveness, improve the precision of bearing and the working life of bearing.Heat treatment hardness, wall thickness that the purpose of this utility model just provides a kind of outer ring have a kind of high strength of specific (special) requirements, a kind of roller bearing of high-accuracy milling train.
Technical solution of the present utility model is a kind of three-row cylindrical roller bearing that is used for milling train, is made up of outer ring 1, roller 2, middle spacer ring 3, inner ring 4, retainer 5 and half retainer 6, and outer ring 1 wall thickness is 35~60mm.Be provided with equally distributed martensite and bainite complex tissue layer in 1 surface layer of described outer ring.
The beneficial effects of the utility model are: the utility model has improved the wearability of bearing outside diameter, has solved the problem of lacking in bearing outside diameter wearing and tearing, working life.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, outer ring, 2, roller, 3, middle spacer ring, 4, inner ring, 5, retainer, 6, half retainer.
Embodiment
As shown in drawings, the utility model is made up of outer ring 1, roller 2, middle spacer ring 3, inner ring 4, retainer 5 and half retainer 6, according to radial load and the required precision that bearing bears, analyze through calculating with limited circle, selecting the thickness of outer ring 1 wall thickness the best is 50mm; 2 choose specific outer ring 1 material (GCr18Mo or GCr15); Adopt special heat-treatment quenching mode, making the metallographic structure in the 1 certain layer depth of outer ring is tiny and equally distributed martensite and bainite complex tissue layer.After heat treatment more than the surface hardness HRC61.1 surface, outer ring slowly is decremented to HRC41 to centre hardness, outer ring 1 surperficial high strength, heart portion high tenacity.The stress of outer ring 1 working surface is pressure stress.Through the outer ring 1 of special thermal treatment technological method, intensity is better than the steel for carburizing Carburization Treatment, and toughness is better than the conventional marquench of high-carbon-chromium bearing steel to be handled, and significantly improves working life and safety in utilization.
Claims (2)
1, a kind of three-row cylindrical roller bearing that is used for milling train is made up of outer ring (1), roller (2), middle spacer ring (3), inner ring (4), retainer (5) and half retainer (6), it is characterized in that, outer ring (1) wall thickness is 35~60mm.
2, a kind of three-row cylindrical roller bearing that is used for milling train according to claim 1 is characterized in that, surface, described outer ring (1) is provided with equally distributed martensite and bainite complex tissue layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007200163521U CN201159245Y (en) | 2007-11-28 | 2007-11-28 | Triplex row cylindrical roller bearing for roller mill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007200163521U CN201159245Y (en) | 2007-11-28 | 2007-11-28 | Triplex row cylindrical roller bearing for roller mill |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201159245Y true CN201159245Y (en) | 2008-12-03 |
Family
ID=40109829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2007200163521U Expired - Lifetime CN201159245Y (en) | 2007-11-28 | 2007-11-28 | Triplex row cylindrical roller bearing for roller mill |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201159245Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110029272A (en) * | 2019-04-17 | 2019-07-19 | 燕山大学 | The tissue modulation method and nanometer bainite bearing steel of high tenacity bearing |
-
2007
- 2007-11-28 CN CNU2007200163521U patent/CN201159245Y/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110029272A (en) * | 2019-04-17 | 2019-07-19 | 燕山大学 | The tissue modulation method and nanometer bainite bearing steel of high tenacity bearing |
CN110029272B (en) * | 2019-04-17 | 2020-07-03 | 燕山大学 | Structure regulating method of high-toughness bearing and steel for nano bainite bearing |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Pellizzari et al. | Hot friction and wear behaviour of high speed steel and high chromium iron for rolls | |
CN104232875B (en) | A kind of Technology for Heating Processing of shield machine 3m bearing ring | |
US8210754B2 (en) | Radial roller bearing having hollow rollers | |
US20160025068A1 (en) | Arrangement for mounting counter-rotatable parts of an energy system | |
CN107110208B (en) | Bearing components and manufacturing method | |
CN103975081B (en) | The method of machine parts, rolling bearing, conical roller bearing and manufacture machine part | |
CN102211278A (en) | Machining process of double-row outer-ring-free cylindrical roller bearing | |
CN103597101B (en) | The method of heat-treated steel component | |
CN106661644A (en) | Method for surface hardening a metal component | |
CN104353976B (en) | Pivoting support processing and Technology for Heating Processing | |
CN201159245Y (en) | Triplex row cylindrical roller bearing for roller mill | |
WO2012141639A1 (en) | Method of carbonitriding a steel component, the steel component and the use of the component | |
US20100027933A1 (en) | Needle bearing | |
CN102847713A (en) | Wearable hot roll | |
EP1099869A3 (en) | Antifriction bearing | |
CN201347956Y (en) | Backing bearing | |
CN101619412A (en) | Intrinsic non-net secondary cementite steel and application method thereof | |
JP2011007234A (en) | Rolling bearing | |
CN204213186U (en) | Corrosion-resistant, high temperature resistant, the anti-friction bearing of cobalt base alloy or nickel alloy cladding | |
CN102409282A (en) | Low-temperature surface carburization method for titanium-aluminum-based intermetallic compound material | |
CN102181799A (en) | Press roll for pressing secondary battery electrode and producing process thereof | |
JP2009250371A (en) | Rolling bearing for hydrogen gas compressor | |
CN217421865U (en) | Novel combined structure of four-row cylindrical roller bearing | |
JP2014077522A (en) | Bearing | |
CN105134784A (en) | Combined rolling body antifriction bearing capable of increasing contact wrap angles of rolling bodies |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term |
Granted publication date: 20081203 |