Housing sheaves are machined at our company. Machine work can securely keep roundness, cylidricality and dimensional tolerance that are most critical for rollers.
Inferior roundness, cylindricality and dimension may cause rotational failure and bearing damage.
The roundness and dimensional precision of housing are the most critical conditions in assembling of a bearing.
The outer ring of a bearing is deformed by the rigidity of the housing and the gap between the ball and the rolling contact surface becomes uneven causing defective rotation. [Heating , vibration, abnormal noise]
Heating and vibration, etc. occur due to outer ring delayed rotation of the bearing.