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The main reason for bearing factory to affect bearing performance analysis
by:Waxing
2020-11-25
Self-lubricating bearing factory affecting the self-lubricating bearing performance of the main causes of what?
Self-lubricating bearing performance to a large extent influenced by suitable bearing material surface roughness and hardness.
High quality of the surface of the shaft can extend the life of the bearing.
Instead of rough, the lower hardness of the surface effect, reduce the service life of bearing.
A, shaft surface roughness 1, used in fluid lubrication conditions, required to do matching shaft surface mirror machining, as far as possible to reduce the oil film clearance, make its nearly fluid lubrication state, so as to improve the performance of the bearing.
2, bearing under the condition of dry friction, as long as the control of its suitable shaft surface roughness Ra = 0.
4 -
The range of 063.
B, the hardness of shaft shaft surface hardness of not less than 220 hb.
Under the condition of high load, rocking movement, shaft heat treatment hardness must be over HRC50 or hard chromium plating, and then to grinding, after surface treatment, can improve corrosion resistance and improve the surface hardness, increase lubricity.
If in corrosion medium like sea condition, the suitable shaft must be two to three layer of hard chromium plating.
Shaft surface rough, sharp corners, burrs, groove will damage the bearing of the sliding layer.
So, choose the good self-lubricating bearing manufacturer, also select against qualified bearing material to make self-lubricating bearing to work normally.
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