Date: 2016-08-22

Timken 18587 - 18520 bearing stock, Dimensions, Drawing

Series  18500 Cone Part Number  18587 Cup Part Number  18520 Design Units  Imperial Bearing Weight  0.7000 lb 0.3000 Kg Cage Type  Stamped Steel D - Cup Outer Diameter  2.8750 in 73.025 mm d - Cone Bore  1.5625 in 39.688 mm B - Cone Width  0.6875 in 17.463 mm C - Cup Width  0.5000 in 12.700 mm T - Bearing Width  0.6562 in 16.667 mm Z - Number of Rollers Per Row  19 R - Cone Backface "To Clear" Radius1  0.030 in 0.760 mm r - Cup Backface "To Clear" Radius2  0.060 in 1.52 mm da - Cone Frontface Backing Diameter  1.77 in 44.96 mm db - Cone Backface Backing Diameter  1.79 in 45.47 mm Da - Cup Frontface Backing Diameter  2.74 in 69.10 mm Db - Cup Backface Backing Diameter  2.60 in 66.04 mm Ab - Cage-Cone Frontface Clearance  0.05 in 1.27 mm Aa - Cage-Cone Backface Clearance  0.02 in 0.51 mm a - Effective Center Location3  -0.11 in -2.80 mm C90 - Dynamic Radial Rating (90 million revolutions)1  2960 lbf 13200 N C1 - Dynamic Radial Rating (1 million revolutions)2  11400 lbf 50800 N C0 - Static Radial Rating  13100 lbf 58100 N Ca90 - Dynamic Thrust Rating (90 million revolutions)3  1770 lbf 7890 N K - Factor1  1.67 e - ISO Factor2  0.35 Y - ISO Factor3  1.71 G1 - Heat Generation Factor (Roller-Raceway)  21 G2 - Heat Generation Factor (Rib-Roller End)  15.4 Cg - Geometry Factor  0.0681

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