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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
Unit of Measure

Specifications

Design Unit

N/A Metric

d - Bore

N/A 300 mm

Bore_Taper

N/A 1/12

Cage Type

N/A EMB

UPC Code

N/A 087796176324

Cage Material

N/A Brass

Superseded Part

N/A 23260KYMBW906A

Dimensions

D - Outer Diameter

N/A 540 mm21.2600 in

B' - Inner Ring Width

N/A 192 mm7.559 in

B - Outer Ring Width

N/A 192 mm7.5590 in

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius1 N/A 4 mm0.160 in
r - Outer Ring "To Clear" Radius2 N/A 4 mm0.16 in

da - Inner Ring Backing Diameter

N/A 351 mm13.800 in

Da - Outer Ring Backing Diameter

N/A 482 mm19.000 in

Basic Load Ratings

C0 - Static Radial Rating

N/A 6170000 N1390000 lbf

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

N/A 4210000 N946000 lbf

Factors

e - ISO Factor3 N/A 0.34
Y0 - ISO Factor4 N/A 1.96
Y1 - ISO Factor5 N/A 2
Y2 - ISO Factor6 N/A 2.98

Reference Thermal Speed Rating (Grease)

N/A 540 rpm
Reference Thermal Speed Rating (Oil)7 N/A 590 rpm
Cg - Geometry Factor8 N/A 0.1297
  • 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.