<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The friction is a key factor of rolling bearing performance, especially for those precision transmission fields. All the top rolling bearing manufactures provide their calculating models on friction torque. However, there is great difference between the calculation result and measured value. Two calculation methods on friction torque of four-point-contact ball bearing, considered different factors involving the calculation, are compared and researched for discovering the key influence factor. A specific test is development to verify the theoretical analysis and a precision control method on friction torque with lower cost in production is proposed.</p></abstract>

The friction is a key factor of rolling bearing performance, especially for those precision transmission fields. All the top rolling bearing manufactures provide their calculating models on friction torque. However, there is great difference between the calculation result and measured value. Two calculation methods on friction torque of four-point-contact ball bearing, considered different factors involving the calculation, are compared and researched for discovering the key influence factor. A specific test is development to verify the theoretical analysis and a precision control method on friction torque with lower cost in production is proposed.

Friction Torque Behavior as a Function of Actual Contact Angle in Four-point-contact Ball Bearing

Applied Mathematics and Nonlinear Sciences

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The friction is a key factor of rolling bearing performance, especially for those precision transmission fields. All the top rolling bearing manufactures...

Serial	Space Angle of grooves on I.R (∘)			Space Angle of grooves on O.R (∘)			Contact Angle (∘)		Clearance μ·m	Friction Torque N·m
	Upper	Lower	Mean	Upper	Lower	Mean	O.R	I.R		test	calculate
1	27.42	27.54	27.48	29.23	27.07	28.15	27.45	28.85	10	0.105	0.084
2	30.45	28.12	29.28	29.50	26.97	28.23	28.50	28.35	14	0.098	0.072
3	30.54	28.36	29.45	27.77	29.67	28.71	29.65	29.70	10	0.140	0.131
4	30.64	29.08	29.86	29.29	27.85	28.56	29.85	29.00	11	0.126	0.102
5	31.38	28.77	30.07	28.29	29.00	28.64	29.25	28.35	11	0.109	0.096
6	30.99	28.87	29.93	28.40	25.73	27.06	29.55	26.15	10	0.130	0.109
7	30.35	28.72	29.54	28.28	28.06	28.17	29.15	28.55	12	0.137	0.114
8	30.40	28.57	29.49	27.28	28.29	27.78	29.05	28.50	11	0.133	0.107
9	30.59	28.79	29.69	28.80	27.82	28.31	29.20	28.20	8	0.119	0.098
10	30.77	28.78	29.77	29.90	27.18	28.54	29.25	27.50	12	0.126	0.101

Friction Torque Behavior as a Function of Actual Contact Angle in Four-point-contact Ball Bearing

Published Online: Jan 01, 2016

Page range: 53 - 64

Received: May 17, 2015

Accepted: Nov 01, 2015

DOI: https://doi.org/10.21042/AMNS.2016.1.00005

Keywords
Friction torque, ball bearing, four-point-contact, contact angle, precision control

© 2016 Chen Long, Xia Xintao, Zheng Haotian, Qiu Ming, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Fig. 2

Fig. 3

Structural parameters of the bearing.

Friction Torque Behavior as a Function of Actual Contact Angle in Four-point-contact Ball Bearing

Published Online: Jan 01, 2016

Page range: 53 - 64

Received: May 17, 2015

Accepted: Nov 01, 2015

DOI: https://doi.org/10.21042/AMNS.2016.1.00005

KeywordsFriction torque, ball bearing, four-point-contact, contact angle, precision control

© 2016 Chen Long, Xia Xintao, Zheng Haotian, Qiu Ming, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Fig. 2

Fig. 3

Structural parameters of the bearing.

Keywords
Friction torque, ball bearing, four-point-contact, contact angle, precision control