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28990-28921DC
Part Number | 28990-28921DC |
System of Measurement | Inch |
Type | Bearing |
Cone Part Number | 28990 |
Cup Part Number | 28921DC |
Bearing Type | Roller |
Roller Bearing Type | Tapered |
For Load Direction | Combined |
Construction | Double Row |
Seal Type | Open |
Cups Type | Standard |
Series | 28900 |
Bore Dia | 2.44" |
Bore Dia Tolerance | +0.005" to 0 |
Outer Dia | 3.937" |
Outer Dia Tolerance | +0.001" to 0 |
Double Cup Width | 1.75" |
Double Cup Width Tolerance | +0.003" to -0.01 |
Cone Width | 0.9688" |
Cone Width Tolerance | +0.002" to -0.01 |
Bearing Width Across Cups | 2.125" |
Bearing Width Across Cups Tolerance | +0.008" to 0 |
Cup Backface ToClear Radius | 0.03" |
Cone Backface Backing Diameter | 2.83" |
Cup Frontface Backing Diameter | 3.82" |
Cage Cone Backface Clearance | 0.02" |
Dynamic Radial Load | 41500 lbf |
Ring Material | Chrome Steel |
Roller Material | Chrome Steel |
Cage Material | Steel |
Dynamic Radial Rating(One Row 90 Million Revolutions) | 6180 lbf |
Dynamic Thrust Rating(90 Million Revolutions) | 4500 lbf |
Dynamic Radial Rating(Two Row 90 Million Revolutions) | 10800 lbf |
Lubrication | Required |
Temperature Range | -30° to 110 °C |
ABEC Rating | ABEC-1 |
Radial Clearance | Standard (Available in C3/C4/C5) |
RoHS | Compliant |
REACH | Compliant |
Weight | 3.400 lb |
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