Title: Plastic tiny oil rotary damper Type:LF-21&LF-21B1.Product usage :Plastic tiny oil rotary damper can be applied on all kinds of home appliance, consumer electronic products and automobiles, High precise torque rotary damper makes products more valuable with the smooth motion control that brings from rotary damper. Plastic rotary damper can make soundless, and with the smooth motion control function that rotary damper brings, it can also extend the life of products.2.Product drawing:  Type:LF-21Type: LF-21B3.TECHNICAL DATA:A: Damping torque: 35-85gf.cmB: Damping direction: bidirectionalC: Rotational speed max. 50 rpmD: Lifetime 50,000 cycles (1 cycle = 360° left-hand, 360° right-hand). Even after this time, the dampers still produce over approx. 80 % of their original damping moment. The service life of 50,000 cycles may be significantly higher or lower, depending on the application. Much higher service lives have however been achieved in practice.E:Operating temperature range -20 °C to +70 °C4.MOUNTING INFORMATION:No axial or radial forces may be induced via the shaft.5.SAFETY INFORMATION:Do not use rotary dampers as supports. Provide an external guide or support.6.ON REQUEST:Special designs available on request. Toothed plastic racks (modules 0.5 to 1.0) are available for the rotary dampers with pinions.7. Why Choose us:· In-house tool manufacture, mold making· Provide OEM&ODM service· RoHs Approve· Plastic processing machines· More than 17 years experiences in manufacturing audio accessories· Optimization of production processes and material input8. About us: