SAE No. 2 Clutch Friction Test Machine Guidelines

1972 ◽  
Author(s):  
Keyword(s):  
Test Machine ◽  
Friction Test

Impact of Sulfur Pollution Silver Cage on Bearing Operating Performance

2010 ◽  
Author(s):  
Qingxiang Yang ◽  
Yulin Qi ◽  
Le Gu
Keyword(s):  
High Speed ◽  
Operating Performance ◽  
Silver Sulfide ◽  
Bench Test ◽  
Test Machine ◽  
Friction Property ◽  
Friction Test ◽  
The Impact ◽  
System Power ◽  
Financial Losses

Sulfur pollution on the silver cage leads to discoloration. Depot rework of silvered bearing cage caused by discoloration leads to great financial losses. In this paper, using a self-made high speed bearing bench test apparatus and the ball disc friction test machine assess the impact of sulfur pollution silver cage on bearing operating performance. The friction property of cage study on the ball disc friction test machine shows that the friction coefficient of silver sulfide film bearing cage is lower than that without pollution. The results from bearing bench test illustrates that the system power loss with sulfur pollution is slightly lower than that without pollution, and the sulfur pollution has little effect on bearing temperature rise. From the experimental results obtained, there is no necessary depot rework for the sulfur pollution sliver bearing cage from the perspective of the use of performance.

Wear Resistance of Nano-ZrO2 Ceramic for Hip Joint Head Prostheses

2010 ◽  
Vol 105-106 ◽  
pp. 175-178 ◽  
Author(s):  
Chen Wang ◽  
Li Min Dong ◽  
Qing Feng Zan ◽  
Pen Guo ◽  
Jie Mo Tian
Keyword(s):  
Wear Resistance ◽  
Hip Joint ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Wear Test ◽  
Test Block ◽  
Test Machine ◽  
Friction Test ◽  
Gcr15 Steel ◽  
Artificial Hip Joint

By using the ring-block friction and wear machine, the friction and wear behavior of nano-ZrO2 ceramic test block against GCr15 steel test ring has been studied. At the same time, friction and wear test of 45# steel block against GCr15 steel ring has also been conducted for comparison. By using self-made test machine for the wear ability of the hip joint, the friction test of nano-ZrO2 ceramic hip joint head against ultra-high molecular weight polyethylene (UHMWPE) acetabulum has been done, the friction test of Co-Cr-Mo alloy hip joint head against UHMWPE acetabulum has also been made for comparison. The results show that the friction factor of nano-ZrO2 ceramic test block against GCr15 steel test ring is less 37.3% than that of 45# steel block against GCr15 steel ring, the wear weight of nano-ZrO2 ceramic test block against GCr15 steel test ring is only 0.76% of that of 45# steel block against GCr15 steel ring. The wear weight of UHMWPE acetabulum against nano-ZrO2 ceramic hip joint head is 61.5% of UHMWPE acetabulum against Co-Cr-Mo alloy hip joint head. This indicates nano-ZrO2 ceramic has good wear resistance property and is the ideal materials for artificial Hip joint head Prostheses.

A Fundamental Study on Sliding Friction

1990 ◽  
Vol 18 (2) ◽  
pp. 104-115 ◽  
Author(s):  
N. Purushothaman ◽  
J. T. Tielking
Keyword(s):  
Experimental Investigation ◽  
Sliding Friction ◽  
Test Machine ◽  
Friction Test ◽  
Fundamental Study ◽  
Surface Samples ◽  
Friction Tester ◽  
Test Parameters ◽  
Contact Pressures ◽  
Tread Rubber

Abstract In this paper we report on an experimental investigation on the friction of tire tread sections sliding over a variety of surfaces. The Texas A&M friction tester was used to measure sliding friction at various speeds and contact pressures. The friction test machine is also described. Actual bituminous and concrete road pavements and artificial 3M Safety Walk were used as surface samples. Tread rubber sections taken from passenger car, truck, and aircraft tires were tested. The influence of major test parameters such as sliding speed, surface texture and contact pressure on friction are discussed.

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