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  • Thread starter sonlecast
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silhouette

Active Member
Composite bác ạ. Quora có bác so sánh ổ lăn với ổ trượt bác tham khảo thêm có gì hay:

1.
Rolling: Friction coefficient is lower.
Sliding: Friction is great.

2.
Rolling: Easy to sub-micron positioning.
Sliding: Difficult to achieve sub-micron positioning.

3.
Rolling: Easy to estimate life
Sliding: Difficult to estimate life

4.
Rolling: Easy to estimate rigidity
Sliding: Difficult to estimate rigidity

5.
Rolling: No play because of preload
Sliding: There is mechanical play

6.
Rolling: Wide range of use from low to high speed
Sliding: Unsuitable for extremely low and high speed

7.
Rolling: Long life through simple maintenance
Sliding: Precision is lost greatly by deteriorated guide surface

8.
Rolling: Can take shock load
Sliding: Poor in taking shock load

9.
Rolling: Require continuously lubricant supply
Sliding: Do Not require continuous lubricant supply
 
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