Damage Condition

• Dents on the raceway at each ball location similar to the deformation caused by a Brinell Hardness Test (Brinelling)
• Dents on the raceway caused by contamination or metallic particles

Possible Causes

• High-energy impacts or improper handling of the product at its installation or in transit will easily cause this type of damage
• Caused by contamination or intruded hard metallic particles

Countermeasures

• Adequate installation and handling
• Improve sealing capability
• Filter the lubrication oil

Indentations

Part: Brinelling on a raceway of a rail
Symptom: Dents on the raceway
Cause: The table fixed to the ball slides was lifted with the heavy machine base to which the rails were fixed, thereby causing brinellings on the raceway surfaces