Thrust Roller Bearing 2687/1049
|Terms of Trade:||FOB,CIF,FCA|
|Delivery Time:||70 Days|
|Packaging:||Standard Export Package|
|Place of Origin:||China|
|HS Code: 8482200000|
- Ms. Jane Li
Model No.: 2687/1049
Thrust roller bearings includes self-aligningthrust roller bearings, tapered roller thrust bearings, cylindrical rollerthrust bearings and needle roller thrust bearings.
1. 29000 type thrust self-aligning roller bearings, thistype of bearings can carry both axial and radial load in which mainly is axialload. And it has low friction coefficient and fine self-aligning property. The rollerof this bearing is unsymmetrical spherical roller, which can reduce relativelyslip between roller and raceway in the operating. Also the long roller has bigdiameter and much quantity, so the load capacity is high. Generally it adoptsoil lubrication, but under low speed circs will be grease lubrication.
NXZ mainlyproduce the following structures:
2.80000 type thrust cylindricalroller bearings and 90000 type thrust tapered roller bearings, this type canaccommodate single-direction axial load, they have much higher axialcarrying-capacity than thrust ball bearings; in additional, they have highrigidity and take up smaller space.. The thrust cylindrical roller bearings areapplied in operation with low rotation speed; the rotation speed of thrust taperedroller bearings is a little higher than thrust cylindrical roller bearings.
3.350000 type double-directions thrust tapered roller bearings (SKFcode), this type can accommodate larger double-direction axial load.
4.TTSV and TTSX type thrust full tapered roller bearings used on pressing-downdevice of mill, this type is full complement roller, can accommodate largersingle-direction axial load.
Brass, brozen or steel solid cages areadopted.
The bearingaxis of thrust tapered roller bearings and thrust cylindrical roller bearingsare not permitted to be inclined. The bearing axis of thrust self-aligningroller bearing is permitted to be inclined, when the equivalent static load P0a≤0.05C0a,and when the shaft washer is slewing, the permissible tilt angle is:
Bearingseries Permissible tilt angle
Thepermissible tilt angle will decrease with the increase of the load.
When the bearings are slewing, as the rollingbodies are acted by centrifugal moment, the rolling bodies will slid withreference to the raceway, which will cause the shaft washer and housing washerto be separated. In order to ensure the normal operation of the bearings,certain axial load must be put on the bearing. The minimum axial load requiredis:
Thrust tapered roller bearings and thrustcylindrical roller bearings
Thrust self-aligning roller bearings
Inthe equation: Famin Minimumaxial load (kN)
Fr Radial load (kN)
C0a Basic static load rating (see bearing dimension table) (kN)
A Minimum load constant (see bearingdimension table)
n Rotational speed (r/min)
When the actual load acted on a bearing isless than the minimum axial load computed, a spring or other measures must beused to preload the bearing.
Dynamicequivalent axial load
Pa=Fa (Thrust tapered roller bearings andthrust cylindrical roller bearings)
When Fr≤0.55Fa Pa=Fa+1.2Fr (Thrust self-aligning roller bearings)
Staticequivalent axial load
P0a=Fa (Thrust tapered roller bearings and thrustcylindrical roller bearings)
When Fr≤0.55Fa P0a=Fa+2.7Fr (Thrustself-aligning roller bearings)
- Company Name: Xibei Bearing Co.,Ltd.
- Representative: Mr Zhao
- Product/Service: Bearing , Railway Bearing , Petroleum Bearing , Metallurgy Rolling Mill Bearing , Heavy Truck Bearing , Construction Machinery Bearing
- Capital (Million US $): 372,440,000RMB
- Year Established: 1965
- Total Annual Sales Volume (Million US $): US$50 Million - US$100 Million
- Export Percentage: 1% - 10%
- Total Annual Purchase Volume (Million US $): Below US$1 Million
- No. of Production Lines: Above 20
- No. of R&D Staff: Above 100 People
- No. of QC Staff: Above 100 People
- OEM Services Provided: yes
- Factory Size (Sq.meters): Above 100,000 square meters
- Factory Location: No.630,Beijing West Road, Yinchuan, Ningxia 750021, China
- Contact Person: Ms. Jane Li
- Tel: 86-951-2020454
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