As the most typical type, PTFE and PVDF are with the highest corrosion resistant.

PTFE is the most corrosive among the known engineering plastics, can be used under all the strong acid, strong Alkali, including 98%. Nitrate Acid; and it has good performance, PTFE was proven to be working under 180C.

PVDF using temp.: 150C; But PTFE is with low .mechanical strength, poor dimensional stability, big deformation, thus it is not applied to higher load or higher RPM.

Relative speaking, PVDF is with better comprehensive performance, commonly: PTFE or PVDF as inter or outer rings.,PTFE or PVDF cages.

Balls: glass balls, ceramic balls, or stainless steel balls.

About Xinzhou Bearing

Xinzhou Bearing Industrial Inc. is one of the custom bearing designer and manufacturer and world wide Distributors of all types of Bearings,specializing in Ball, Needle, and Roller types (Inch and Metric Sizes) made from Ceramic (Si3N4/ZrO2), Stainless (440c/316) or Chrome Steel(SAE52100 steel); Tolerance ABEC1, 3, 5, 7.level.

In pursuit of a no-lube ball bearing,we. have developed a self lubricating PTFE based retainer. Combining these two developments, with a ceramic ball has resulted in. the ultimate low torque ball bearing capable of withstanding high or low temperatures.

Their new approach to a simple device has resulted in a life extension by an order of magnitude.

They are uniquely positioned to provide OEM' s and Distributors a full rang of engineered solutions in addition to stocking thousands of bearing and bearing related products to cost-efficiently and consistently provide just-in-time delivery.