Bearings Spec Table

6 types of spec data

Bearings support rotating or linear shafts and reduce friction. Deep groove ball bearings are the most versatile, handling both radial and axial loads. Roller bearings suit heavy radial loads; angular contact bearings handle high-speed combined loads. The seal type (ZZ shields / 2RS contact seals) also significantly affects bearing service life.

Frequently Asked Questions

What does bearing number 6001ZZ mean?

60 = deep groove ball bearing, 01 = 12mm bore (01×5+7), ZZ = double metal shields. 2RS indicates rubber seals on both sides.

What is the bearing L10 life rating?

L10 is the fatigue life at which 90% of a bearing population survives without failure — the rated life at 90% reliability.

What is bearing preload?

Preload applies an axial force to eliminate internal clearance, improving stiffness and running accuracy. Used in machine tool spindles and precision robots.

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