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2024-09-23

What are the sizes of machine tool spindle bearings?

The sizes of machine tool spindle bearings vary depending on the specific application, machine design, and manufacturer. Machine tool spindle bearings come in various types, such as angular contact ball bearings, cylindrical roller bearings, and tapered roller bearings, each with its own range of sizes.Here are some general guidelines for the sizes of common spindle bearings:

Machine tool spindle bearings sizes

H70C-ACP4 Ultra High Speed Series

1. Angular Contact Ball Bearings:

Bore (Inner Diameter): 10 mm to 200 mm (commonly)

Outer Diameter: 30 mm to 300 mm

Width: 9 mm to 45 mm

2. Cylindrical Roller Bearings:

Bore: 15 mm to 300 mm

Outer Diameter: 35 mm to 400 mm

Width: 11 mm to 73 mm

3. Tapered Roller Bearings:

Bore: 20 mm to 200 mm

Outer Diameter: 47 mm to 300 mm

Width: 15 mm to 70 mm

4. High-Speed Precision Bearings:

Bore: 20 mm to 120 mm

Outer Diameter: 42 mm to 180 mm

Width: 12 mm to 36 mm

The exact size and type of spindle bearing will depend on the spindle's load capacity, speed, rigidity, and accuracy requirements. It's always best to refer to the bearing manufacturer's catalog or specifications for precise dimensions and compatibility. Brands like SKF, FAG, NSK, and NTN provide detailed information about spindle bearings and their dimensions.

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