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Series
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30203
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Cone Part Number
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X30203
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Cup Part Number
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Y30203
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Design Units
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Metric
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Bearing Weight
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0.2000 Kg
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Cage Type
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Stamped Steel
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D - Cup Outer Diameter
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40.000 mm
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d - Cone Bore
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17.000 mm
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B - Cone Width
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12.000 mm
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C - Cup Width
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11.000 mm
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T - Bearing Width
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13.250 mm
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Z - Number of Rollers Per Row
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15
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R - Cone Backface "To Clear" Radius1
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1.020 mm
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r - Cup Backface "To Clear" Radius2
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1.02 mm
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da - Cone Frontface Backing Diameter
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21.08 mm
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db - Cone Backface Backing Diameter
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22.10 mm
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Da - Cup Frontface Backing Diameter
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37.59 mm
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Db - Cup Backface Backing Diameter
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35.05 mm
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Ab - Cage-Cone Frontface Clearance
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1.52 mm
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Aa - Cage-Cone Backface Clearance
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0.25 mm
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a - Effective Center Location3
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-3.60 mm
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1 These maximum fillet radii will be cleared by the bearing corners.
2 These maximum fillet radii will be cleared by the bearing corners.
3 Negative value indicates effective center inside cone backface.
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C90 - Dynamic Radial Rating (90 million revolutions)1
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5530 N
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C1 - Dynamic Radial Rating (1 million revolutions)2
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21300 N
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C0 - Static Radial Rating
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19900 N
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Ca90 - Dynamic Thrust Rating (90 million revolutions)3
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3270 N
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1 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
2 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
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K - Factor1
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1.69
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e - ISO Factor2
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0.35
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Y - ISO Factor3
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1.74
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G1 - Heat Generation Factor (Roller-Raceway)
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4.2
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G2 - Heat Generation Factor (Rib-Roller End)
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6
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Cg - Geometry Factor
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0.0398
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1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
2 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
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