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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Case Carburized Inner Rings and Rollers (W40I,W40R,W906A) - (Common in Paper industry applications)
Spherical bearings are designed to manage high radial loads even when misalignment, poor lubrication, contamination, extreme speeds or critical application stresses are present.
Timken_SRB_Brass_EMW33_22208YMW33C3-A2
SRB EM-YM Line Drawing
Unit of Measure
Items Timken_SRB_Brass_EMW33_22208YMW33C3-A2
230/500KYMBW906A
Spherical Roller Bearings - Brass Cage 		Timken_SRB_Brass_EMW33_22208YMW33C3-A2
230/500KYMBW906AC3
Spherical Roller Bearings - Brass Cage 		Timken_SRB_Brass_EMW33_22208YMW33C3-A2
230/530KYMBW40IW534C3
Spherical Roller Bearings - Brass Cage 		Timken_SRB_Brass_EMW33_22208YMW33C3-A2
230/530KYMBW906A
Spherical Roller Bearings - Brass Cage 		Timken_SRB_Brass_EMW33_22208YMW33C3-A2
230/530KYMBW906AC3
Spherical Roller Bearings - Brass Cage
Design Unit N/A Metric
d - Bore N/A 500 mm N/A 500 mm N/A 530 mm N/A 530 mm N/A 530 mm
D - Outer Diameter N/A 720 mm28.3470 in N/A 720 mm28.3470 in N/A 780 mm30.709 in N/A 780 mm30.709 in N/A 780 mm30.709 in
B' - Inner Ring Width N/A 167 mm6.575 in N/A 167 mm6.575 in N/A 185 mm7.284 in N/A 185 mm7.284 in N/A 185 mm7.284 in
B - Outer Ring Width N/A 167 mm6.5750 in N/A 167 mm6.5750 in N/A 185 mm7.2840 in N/A 185 mm7.2840 in N/A 185 mm7.2840 in
Bore_Taper N/A 1/12
R - Inner Ring "To Clear" Radius1 N/A 5 mm0.200 in
r - Outer Ring "To Clear" Radius2 N/A 5 mm0.200 in
da - Inner Ring Backing Diameter N/A 550.000 mm21.700 in N/A 550.000 mm21.700 in N/A 588.000 mm23.2000 in N/A 588.000 mm23.2000 in N/A 588.000 mm23.2000 in
Da - Outer Ring Backing Diameter N/A 673.000 mm26.500 in N/A 673.000 mm26.500 in N/A 725.000 mm28.600 in N/A 725.000 mm28.600 in N/A 725.000 mm28.600 in
C0 - Static Radial Rating N/A 8160000 N1840000 lbf N/A 8160000 N1840000 lbf N/A 9720000 N2190000 lbf N/A 9720000 N2190000 lbf N/A 9720000 N2190000 lbf
C1(2) - Dynamic Radial Rating (Two-Rows) N/A 4290000 N965000 lbf N/A 4290000 N965000 lbf N/A 5150000 N1160000 lbf N/A 5150000 N1160000 lbf N/A 5150000 N1160000 lbf
e - ISO Factor3 N/A 0.21
Y0 - ISO Factor4 N/A 3.18 N/A 3.18 N/A 3.07 N/A 3.07 N/A 3.07
Y1 - ISO Factor5 N/A 3.26 N/A 3.26 N/A 3.14 N/A 3.14 N/A 3.14
Y2 - ISO Factor6 N/A 4.85 N/A 4.85 N/A 4.68 N/A 4.68 N/A 4.68
Reference Thermal Speed Rating (Grease) N/A 510 rpm N/A 510 rpm N/A 460 rpm N/A 460 rpm N/A 460 rpm
Reference Thermal Speed Rating (Oil)7 N/A 580 rpm N/A 580 rpm N/A 530 rpm N/A 530 rpm N/A 530 rpm
Cg - Geometry Factor8 N/A 0.1037 N/A 0.1037 N/A 0.1083 N/A 0.1083 N/A 0.1083
Bearing Weight N/A 222.00 Kg488.40 lb N/A 222.00 Kg488.40 lb N/A 302.60 Kg665.70 lb N/A 302.60 Kg665.70 lb N/A 302.60 Kg665.70 lb
Cage Type N/A YMB
UPC Code N/A 087796029262 N/A 087796187931 N/A 087796200333 N/A 087796197626 N/A 087796139909
Cage Material N/A Brass
Superseded Part N/A
  • 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.