What Happens When The Bearing Is Greased With The Motor Running?
Oil is an ‘incompressible’ fluid, which is important when considering the developing issues within the bearing housing (Figure 1) while greasing an operating motor. The ‘soap,’ or grease medium, acts as a suspension in the oil, although grease is normally represented as a base with an oil suspension. This becomes an important issue in the physical world of hydrodynamics. With the bearing housing partially filled with grease, grease is added to the housing. Some of the grease flows through the operating surfaces of the bearing, causing stress. The reduction of clearances causes an increase in friction within the bearings. This will cause the bearing temperature to increase as the bearing surfaces reject the grease medium. Once the temperature drops, the grease is no longer within the bearing surfaces and oil from the grease provides lubrication. The increase in temperature causes a reduction in grease viscosity, allowing it to flow freely, albeit slowly, and excess grease is rejected th
Related Questions
- Unless the motor has hydrolic steering, there isn that much you can do. There are some grease zirks on the steering tube and also on the midsection of the motor where the motor pivits that can be greased to help. Steering cables sometimes get stiff, or it could be bent causing it to steer hard.
- What Happens When The Bearing Is Greased With The Motor Running?
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