In the process of the use of skf bearings,http://www.alierbearings.com/brand/skf/index   there will always be problems such as peeling, burn and crack defects. How to solve them?

Actually bearing damage analysis of common problems is mainly divided into the following categories: stripping burns, crack defects, cage damage, scratch card, rust corrosion, abrasion, erosion, indentation, creep, bruised.

1 phenomenon

1) peeling of running surface.

2) after peeling, it is obviously concave and convex.

2 reasons

1) improper use of load.

2) poor installation

3) poor accuracy of shaft or bearing box.

4) small clearance

5) foreign body invasion

6) rust

7) the hardness of abnormal temperature decreases.

Three measures

1) restudy the conditions of use.

2) reselect the bearing.

3) reconsider the clearance.

4) check the machining accuracy of shaft and bearing box.

5) study the design around the bearing.

6) check the installation method.

7) check lubricant and lubrication method.

1 phenomenon

The bearing heats and discolors, and burns cannot rotate.

2 reasons

1) the clearance is too small (including the minor of the deformation)

2) insufficient lubrication or improper lubricants.

3) excessive load (overpressure)

4) roller deflection.

Three measures

1) set appropriate clearance (increase clearance)

2) check the type of lubricant to ensure the injection quantity.

3) check the conditions of use.

4) prevent positioning errors.

5) check the design around the bearing (including bearing heating)

6) improve the bearing assembly method.

1 phenomenon

Some gaps and cracks.

2 reasons

1) excessive impact load.

2) excessive surplus

3) there is a large peeling.

4) friction crack

5) poor installation side accuracy (round corners)

6) poor use (using a copper hammer, stuck in a large foreign body)

Three measures

1) check the use conditions.

2) set appropriate excess and check material.

3) improve installation and application methods.

4) prevent friction crack (check lubricant)

5) check the design around the bearing.

1 phenomenon

1) loosening or breaking of willow nails.

2) keep the shelf broken.

2 reasons

1) excessive torque load.

2) high speed rotation or rotation speed.

3) poor lubrication

4) insert foreign body.

5) large vibration

6) poor installation (incline to install)

7) abnormal temperature rise (resin holder)

Three measures

1) check the use conditions.

2) check lubrication conditions.

3) restudy the selection of the cage.

4) pay attention to the use of bearings.

5) research axis and bearing box rigidity.

1 phenomenon

Surface wear, cause dimensional change, more with abrasion, abrasion mark.

2 reasons

1) the lubricant is mixed into foreign body.

2) poor lubrication

3) roller deflection.

Three measures

1) check lubricant and lubrication method.

2) enhanced sealing performance.

3) prevent positioning errors.

Nine,

Electric erosion

1 phenomenon

The rolling surface has a crater, and further development is a wave plate.

2 reasons

Rolling surface power

Three measures

1) make current bypass valve.

2) adopt insulation measures to avoid the current passing through the bearing.

1 phenomenon

A surface pit or an abrasion caused by a solid foreign body or impact.

2 reasons

1) solid foreign body invasion.

2) insert the strip.

3) the impact caused by poor installation will fall off.

4) install in an inclined state.

Three measures

1) improve installation and use methods.

2) prevent foreign body from mixing.

3) if it is caused by a metal sheet, it must be checked for other parts.

11. Creep 1 phenomenon.

The inner diameter or outer diameter is skidded, resulting in mirror or discoloration, sometimes jamming.

2 reasons

1) lack of cooperation.

2) the sleeve tightening is not enough.

3) abnormal temperature rise

4) overload

Three measures

1) restudy the surplus.

2) study the conditions of use.

3) check the accuracy of shaft and bearing box.