Face to face matched tapered roller bearing: 31306DF

Face to face matched tapered roller bearing: 31306DF

Face to face matched tapered roller bearing
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Specifications:
Description
Matched face to face tapered roller bearings handle axial force in both directions and large radial loads while maintaining accurate centering. They are manufactured together as a set that includes two tapered roller bearings, and a precision machined set of shims. This configuration is more complicated to use correctly and is less popular than the back to back arrangement. Its main advantage is that the axial clearance in the bearing will decrease as it heats. It is more prone to overheating without control of heat flow. Still, it is an excellent choice in equipment that requires tight positioning control, such as machining tools with forced cooling systems.
Attribute nameAttribute value
Product Information
Attribute nameAttribute value
Code410181
Shaft Size30mm
SealsNone
ConstructionFace to Face Matched Set
Material52100
PackageQTYPackage Quantity1
UOMUnit of MeasureEA
Dimensions
Attribute nameAttribute value
Bore (mm)30
D (mm)72
B (mm)41.5
r3-r4 (mm)1.5
K (mm)5.5
2B (mm)38
b (mm)8
r5 (mm)0.6
Abutment Dimensions
Attribute nameAttribute value
Da (mm)40
Damin-db (mm)55
damax (mm)40
Camin (mm)3
ramax (mm)1.5
Calculation Data
Attribute nameAttribute value
Nr (RPM)Reference speed5600
Nmax (RPM)Limiting speed9500
C (lb)Dynamic load capacity22481
C0 (lb)Static load capacity22481
Pu (lb)Fatigue load limit2563
eLimiting value0.83
Y0Calculation factor0.8
Y1Calculation factor0.81
Y2Calculation factor1.2
Mass
Attribute nameAttribute value
Weight(lbs)1.8
Tolerance Class
Attribute nameAttribute value
ClearanceCN
Safe Loads
Attribute nameAttribute value
Tmax (F)250
Tmin (F)-40