Thrust Roller Bearing 2687/1049
|Terms of Trade:||FOB,CIF,FCA|
|Delivery Time:||70 Days|
|Packaging:||Standard Export Package|
|Place of Origin:||China|
Model No.: 2687/1049
Thrust roller bearings
Thrust roller bearings includes self-aligning thrust roller bearings, tapered roller thrust bearings, cylindrical roller thrust bearings and needle roller thrust bearings.
1. 29000 type thrust self-aligning roller bearings, this type of bearings can carry both axial and radial load in which mainly is axial load. And it has low friction coefficient and fine self-aligning property. The roller of this bearing is unsymmetrical spherical roller, which can reduce relatively slip between roller and raceway in the operating. Also the long roller has big diameter and much quantity, so the load capacity is high. Generally it adopts oil lubrication, but under low speed circs will be grease lubrication.
NXZ mainly produce the following structures:
2.80000 type thrust cylindrical roller bearings and 90000 type thrust tapered roller bearings, this type can accommodate single-direction axial load, they have much higher axial carrying-capacity than thrust ball bearings; in additional, they have high rigidity and take up smaller space.. The thrust cylindrical roller bearings are applied in operation with low rotation speed; the rotation speed of thrust tapered roller bearings is a little higher than thrust cylindrical roller bearings.
3.350000 type double-directions thrust tapered roller bearings (SKF code), this type can accommodate larger double-direction axial load.
4. TTSV and TTSX type thrust full tapered roller bearings used on pressing-down device of mill, this type is full complement roller, can accommodate larger single-direction axial load.
Brass, brozen or steel solid cages are adopted.
Permissible tilt angle
The bearing axis of thrust tapered roller bearings and thrust cylindrical roller bearings are not permitted to be inclined. The bearing axis of thrust Self-Aligning Roller 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:
Bearing series Permissible tilt angle
292 series 1.5°
293 series 2°
294 series 2.5°
The permissible tilt angle will decrease with the increase of the load.
Minimum axial load
When the bearings are slewing, as the rolling bodies are acted by centrifugal moment, the rolling bodies will slid with reference to the raceway, which will cause the shaft washer and housing washer to 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 required is:
Thrust tapered roller bearings and thrust cylindrical roller bearings
Thrust self-aligning roller bearings
In the equation: Famin Minimum axial load (kN)
Fr Radial load (kN)
C0a Basic static load rating (see bearing dimension table) (kN)
A Minimum load constant (see bearing dimension table)
n Rotational speed (r/min)
When the actual load acted on a bearing is less than the minimum axial load computed, a spring or other measures must be used to preload the bearing.
Dynamic equivalent axial load
Pa=Fa (Thrust tapered roller bearings and thrust cylindrical roller bearings)
When Fr≤0.55Fa Pa=Fa+1.2Fr (Thrust self-aligning roller bearings)
Static equivalent axial load
P0a=Fa (Thrust tapered roller bearings and thrust cylindrical roller bearings)
When Fr≤0.55Fa P0a=Fa+2.7Fr (Thrust self-aligning roller bearings)
Xibei Bearing Co.,Ltd.
Xibei Bearing Co., Ltd. is located in the Yinchuan city, the capital of Ningxia province. Its predecessor, the Xibei Factory was founded in the depths of Helan Mountain in 1965. From 1982, it moved to Yinchuan city, and builds a modern factory in the Yinchuan city. It makes a positive contribution to the revitalization of bearing industry in China.Xibei Bearing Co., Ltd. is one of the biggest bearing manufactories in the west of China, one of the leading companies in bearing industry. It has certificate for the Exemption for the Export Inspection and its NXZ trademark is the Chinese well-know mark.Located In the northwest of China, Xibei Bearing Co., Ltd. orientate to equip China and service to the world. During the course of development, Xibei Bearing Co., Ltd. continuously accumulates experience, pioneering and innovative, forge ahead with determination. In accordance with the international standard and customer`s special requirement, Xibei Bearing can produce more than 6000 varieties of bearing standard and non-standard with outside diameter from 40mm to 3500mm. NXZ bearing is widely used in rail transit, military industry, precision motor, petroleum machinery, metallurgy machinery, heavy truck, construction machinery, mining machinery, cement machinery and hydraulic engineering, etc., and well sold all over China and export to over 50 countries and regions, such as Europe, America, Asia, Africa, etc. Xibei Bearing Co., Ltd. has National Enterprise Technical Center, postdoctoral scientific research workstation, and union engineering laboratory by local with state for large special bearing. There are abundant technical strength, first-class new product research & development, technology innovation ability, perfect technical innovation and product development system. It`s research and develops more than 200 kinds of new products per year on average. Research and development of oil drilling bearing 30228/630Q won the national quality gold medal. NXZ research & development and manufacturing process is leading level large special bearing. Products are successfully applied to the shenzhou V, Shenzhou VI launch monitoring device. Company has more than 500 kinds of products have filled the country blank space; nearly 1000 kinds of products reached the international advanced level.Xibei Bearing Co., Ltd. has all kinds of professional and technical personnel more than 300, including over 90 senior professional and technical personnel, with eight enjoy state council allowance, four enjoy the Ningxia autonomous region government subsidies, one is in the state [Bai qian wan project", and two are postdoctoral. Xibei Bearing promises the concept of [Customer First, Quality first" has successively passed the ISO9001 quality management system, ISO14001 environment manage system, ISO10012 metering management system, GJB9001B military quality system, ISO/TS16949 automotive quality system certification, and is national first-class metrology unit.Xibei Bearing Co., Ltd. possesses all kinds of equipment and test equipment of 2500 sets, in which, 425 sets are [large, precise and high-tech" equipment. It can supply the informatization and intelligentized process equipment to customer with higher quality product in bearing industry.Xibei Bearing Co., Ltd. makes the best of existing well-know mark, the advantage of the technology, resources and market, according to the [Made in China 2025" Strategy, promoteing high technology content, high value-added, high precision, high reliability bearing product. In Yinchuan state-level economic and technological development zone plans and constructs the first-level high-end bearing industrial base with digital, intelligent, informatization, greenization as the target. Xibei Bearing will be built into the biggest high-end bearing base in the West of China for research and develop, test and intelligent high-end base, the domestic first-level export high-end export base, fulfilled industry transformation and updating fulfill the capacity of annual output high-end equipment bearing for rail transit, military machinery, precision machinery, wind power, petroleum machinery, metallurgy machinery, mining machinery and heavy truck.
- 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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