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Key Features
    • Longer bearing life achieved from higher capacity (vs. competitors)
    • Longer lubrication life achieved from lower operating temperatures due to reduced internal friction and running torque from cage guided rollers
    • Improved bearing performance in extreme operating conditions, minimizing impact of contaminants that can get caught in the bearing's roller and cage due to an enhanced cage bridge design
    • Extend bearing life in applications with extreme shock/vibration, high gravitational forces and minimal lubrication conditions due to the extra strength and durability provided by our machined brass cage
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Unit of Measure

Specifications

Design Unit

 N/A Metric

d - Bore

 N/A 260 mm

Bore_Taper

 N/A 1/12

Cage Type

 N/A EMB

Cage Material

 N/A Brass

Superseded Part

 N/A 23052KYMBW40IW534

Dimensions

D - Outer Diameter

 N/A 400 mm15.748 in

B' - Inner Ring Width

 N/A 104 mm4.0945 in

B - Outer Ring Width

 N/A 104 mm4.0945 in

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius1 N/A 3 mm0.120 in
r - Outer Ring "To Clear" Radius2 N/A 3 mm0.12 in

da - Inner Ring Backing Diameter

 N/A 291.000 mm11.500 in

Da - Outer Ring Backing Diameter

 N/A 369.000 mm14.5000 in

Basic Load Ratings

C0 - Static Radial Rating

 N/A 2740000 N617000 lbf

C1(2) - Dynamic Radial Rating (Two-Rows)

 N/A 1820000 N409000 lbf

Factors

e - ISO Factor3 N/A 0.24
Y0 - ISO Factor4 N/A 2.78
Y1 - ISO Factor5 N/A 2.85
Y2 - ISO Factor6 N/A 4.24

Reference Thermal Speed Rating (Grease)

 N/A 1100 rpm
Reference Thermal Speed Rating (Oil)7 N/A 1300 rpm
Cg - Geometry Factor8 N/A 0.1126
  • 1 Maximum housing fillet radius that bearing corners will clear.
  • 2 Maximum shaft fillet radius that bearing corners will clear.
  • 3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 4 These factors apply for both inch and metric calculations. See engineering
  • 5 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 6 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 7 See thermal speed ratings in the engineering section.
  • 8 Geometry constant for Lubrication Life Adjustment Factor a3l.