What is the purpose of the logarithmic curve on the roller surface of a cylindrical roller bearing?

Q: What is the role of the logarithmic curve of the roller surface in cylindrical roller bearings?


A: The surface profile of the roller determines the stress distribution in the roller-raceway contact area. The rollers in cylindrical roller bearings have a logarithmic curve to distribute the load evenly on the rollers. This avoids peak stresses at the roller ends, thereby extending the service life of the bearing. The logarithmic curve also reduces sensitivity to misalignment and shaft deflection.

 

The surface treatment of the roller and raceway contact surfaces maximizes the formation of the hydrodynamic lubricant film and optimizes the roller movement. The advantages achieved in this design also include higher operating reliability compared to conventional designs. In addition to radial loads, cylindrical roller bearings with ribs on both the inner and outer rings can also support axial loads. Their axial load-bearing capacity is mainly determined by the ability of the roller end contacts to support the load. The factors that have the greatest impact on this performance are the lubricant, the operating temperature, and the heat dissipation ability of the bearing.

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About JHB:


LuoYang JinShuo Precision Bearing Co., Ltd. is mainly committed to the R&D and sales of high-precision bearings and other special products, and provides bearings and transmission parts with high performance for customers' equipment. With quick response, from pre-sales technical communication to on-time production delivery, as well as perfect after-sales service, we win the recognition and trust of customers.


Our main products include cylindrical roller bearings, tapered roller bearings, slew bearings, gear drives, spindle bearings, crossed roller bearings, turret bearings, thin-wall bearings, tandem roller bearings, spherical roller bearings, etc. The bearing dimensions rang from 100mm to 6000mm, the accuracy reaches P5, P4 and P2 levels. The bearing are widely used in mining and metallurgy, industrial equipment, industrial gearboxes, petroleum equipment, cranes, medical equipment, robotic equipment, etc. Among them, cylindrical roller bearings with better performance and high-precision deep groove ball bearings have been explored for high-speed tubular strander rotating cable equipment, which have completely replaced imports, saving customers costs and time, and improving work efficiency. It has been recognized and widely praised by customers.


Contact JHB:


Address: Yiyang Bearing Industry Zone, Luoyang City, China 47100

Tel/Wechat: +86-18037970383

Whatsapp: +86-18037970383

Fax: 0086-379-65199160

E-mail: lyjh@lyjhbearing.com

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Website: www.chinajhbearing.com

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