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Timken® angular contact ball bearings are designed for combination radial and axial loading. Single-row bearings have high thrust capacity in one direction. Some single-row bearings are specifically designed for duplex mounting in sets for maximum performance.
Unit of Measure

Specifications

Rows per Set

N/A Single

Design Units

N/A Metric

d - Bore

N/A 200 mm

Ball Type

N/A Ceramic

Cage Type

N/A CR - Phenolic Outer Land Riding Cage

Precision Rating

N/A ISO P4S (ABEC 7/9)

Manufacturing Part Number

N/A 2MMC9140WI SUM

World Part Number

N/A C7040C-T-P4S-SUM

Dimensions

D - Outer Diameter

N/A 310 mm12.2047 in

Bearing Width

N/A 51 mm2.0079 in

Total Width

N/A 51 mm2.0079 in

Contact Angle

N/A 15 º

Basic Load Ratings

C0 - Static Radial Rating (per row)

N/A 300100 N67460 lbf
Ce - Dynamic Radial Rating (per row)1 N/A 296700 N66700 lbf

C1 ISO - Dynamic Radial Rating (per row)

N/A 270000 N60600 lbf

Factors

Limiting Speed (Grease) (per row)

N/A 4920 rpm

Limiting Speed (Oil)

N/A 9840 rpm

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius2 N/A 2 mm0.079 in
r - Outer Ring "To Clear" Radius3 N/A 2 mm0.079 in

da - Inner Ring Backing Diameter

N/A 221.6 mm8.730 in

Da - Outer Ring Backing Diameter

N/A 289.2 mm11.390 in
  • 1 Based on 106 revolutions of calculated fatigue life.
  • 2 Maximum housing fillet radius that bearing corners will clear.
  • 3 Maximum shaft fillet radius that bearing corners will clear.
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