The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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Key Features

  • Supports heavy radial loads
  • Enhanced operational reliability
  • Long service life
Unit of Measure

Key Dimensions

Bore (d)

 N/A 177.800 mm

O.D. (D)

 N/A 304.8 mm12 in

Width (B)

 N/A 1.75 in44.45 mm
Dynamic Radial Load Rating - 1M Revs (C1)1 N/A 479000 N108000 lbf

Alternate Part Name

 N/A 70RIF298R3

Other Dimensions

Shaft Backing Shoulder Diameter

 N/A 0 mm0.0000 in

Max Shaft Fillet Radius LF ID

 N/A 0.200 in4.1 mm

Max Shaft Fillet Radius RF ID

 N/A 0.200 in4.1 mm

Max Housing Fillet Radius LF OD

 N/A 0.2 in4.1 mm

Max Housing Fillet Radius RF OD

 N/A 0.2 in4.1 mm

Design Units

 N/A Metric

Type

 N/A NF

Ratings

Static Radial Load Rating (C0)

 N/A 576000 N129000 lbf

Thermal Reference Speed - Oil

 N/A 1500 rpm

Thermal Reference Speed - Grease 

 N/A 1300 rpm

Factors

Geometry Factor (Cg) 2 N/A 0.1081
  • 1 Based on 1 X 106 L10 life for the ISO life calculation method.
  • 2 Geometry constant for Lubrication Life Adjustment Factor a3l.