Timken 6381/6321 Taper Roller Bearing

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Timken 6381/6321 Taper Roller Bearing

It is a type of rolling element bearing designed to handle both radial and axial loads. The main distinguishing feature of taper roller bearings is their tapered rollers. It consist of an inner ring, an outer ring, tapered rollers, and a cage that holds the rollers in position.

Part Number	6381-6321
System of Measurement	Inch
Type	Bearing
Cone Part Number	6381
Cup Part Number	6321
Bearing Type	Roller
Roller Bearing Type	Tapered Roller
For Load Direction	Combined Radial and Thrust
Construction	Single Row
Seal Type	Open
Cups Type	Standard
Series	6300
Bore Dia	2.1649″
Bore Dia Tolerance	+0.013″ to 0
Outer Dia	5.1875″
Outer Dia Tolerance	+0.025″ to 0
Cone Width	2.205″
Cone Width Tolerance	+0.076″ to -0.254″
Cup Width	1.75″
Cup Width Tolerance	+0.051″ to -0.254″
Width	2.125″
Width Tolerance	+0.203″ to 0
Cone Backface ToClear Radius	0.14″
Cup Backface ToClear Radius	0.130″
Cone Frontface Backing Diameter	2.76″
Cone Backface Backing Diameter	2.99″
Cup Frontface Backing Diameter	4.96″
Cup Backface Backing Diameter	4.53″
Cage Cone Frontface Clearance	0.05″
Cage Cone Backface Clearance	0.13″
Effective Center Location	-0.76″
Ring Material	52100 Chrome Steel
Roller Material	52100 Chrome Steel
Cage Material	Steel
Dynamic Radial Load	72300 lbf
Static Radial Load	90900 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90)	18700 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90)	10400 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	8.3 lb