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[micro bearing] Yuwei Technology Department detailed analysis of bearing internal clearance

Release time: January 9, 2018 21:48:43 Views: 1712


1、 Selection standard of bearing internal clearance

Under normal operating conditions (such as normal load, fit, speed, temperature, etc.), a standard internal clearance produces a very satisfactory operating clearance.

Customers should pay attention to the following situations:

Examples of selecting non-standard clearance (CN)


Operating conditions Clearance Application example (Reference)
Interference in heavy load or impact load C3 clearance or greater Train axle
Inner ring exposed to high temperature
Outer ring exposed to low temperature
Traction motor
As the axis tightens
Increase axial load capacity by increasing contact angle
Paper machine, desiccant
Outdoor use in cold areas
Due to the interference between the inner and outer rings, the load is not determined Semi floating axle vehicle; railway bearing
Shaft of thrust bearing of rolling mill
The clearance between inner and outer rings is suitable for vibration and sound control C2 clearance or less Special rolling machine

2、 Radial internal clearance of bearing

The internal clearance is determined in order to keep the appropriate clearance after the bearing interference fit is installed. Typical internal clearance categories of deep groove ball bearings are C2, CN, C3, C4, and C5. CN (conventional).

C2:
C3:
C4:
C5:
Less than standard clearance
Over standard clearance
Over C3
Over C4
CM: EMQ bearing clearance
MC: Clearance of micro bearing


3、 Select bearing internal clearance

The internal clearance of rolling contact bearing is a factor that can affect bearing life, vibration, heat and sound. Therefore, in order to prevent the clearance problem, the unloading bearing clearance should be selected to increase the operation clearance slightly.

Generally, bearing internal clearance refers to normal clearance when recommended and operating conditions are normal. Interference is suitable for bearing inner and outer rings because of unusual temperature, etc. bearing internal clearance is larger or smaller than normal.

if there be Steel bearing For technical problems, please call in time Shanghai Yuwei Bearing Co., Ltd Service hotline: 021-51099639 or 15001823721 or email: YW @ gifudayo.com official website: http://gifudayo.com
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Shanghai Yuwei Bearing Co., Ltd. (Headquarters)
Tel: 021-51099639
Fax: 021-51861291
Email address: yw@gifudayo.com
Address: 2758 Songjin Road, Zhangyan Town, Jinshan District, Shanghai, China
Shaanxi Yuwei Bearing Manufacturing Co., Ltd
Tel: 029-86696506
Fax: 02890
Email address: sales@gifudayo.com
Address: Qinhan new town free trade zone, Xixian new area, Shaanxi Province
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