What is Limited Slip? An Importantant Issue in Gear Oil and ATF
September 19, 2019
What is Limited Slip?
Backgroud: Differentials transmit power to the wheels while allowing them to rotate at different speeds.
Introduction of Limited Slip: • Differential consists of a set of discs and clutches inside a housing that provide a friction coupling between the two axles. • Clutch type most common – has a spring pack and a set of clutches. Some of these have a cone clutch that is just like the synchronizers in a manual transmission.
Issues with Limited Slip:
• Stalling - when one wheel loses traction and the vehicle does not move. • All of the driving torque is taken away by the wheel with less traction. • Chatter? • Slow-moving clutch prone to stick and then slip in a repetitive fashion unless a lubricant with the proper frictional characteristics is used. • Noise resulting from stick-slip (engagement-disengagement) phenomenon that occurs between the elements of clutches at low speeds. Additives, called friction modifiers, are used to impart proper frictional characteristics to the lubricant to overcome this problem.
Our Gear Oil Additive Package is prepared with high quality Friction Modifier , Antiwear EP Additive , etc. to show good Limited Slip performance.
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