Back to back matched tapered roller bearing: 32215T78DB

Back to back matched tapered roller bearing: 32215T78DB

Back to back matched tapered roller bearing
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Specifications:
Description
Matched back-to-back tapered roller bearings are the most popular double row tapered bearing design. They carry heavy radial and axial loads and axial forces in both directions. They are manufactured together as a set that includes two tapered roller bearings, and a precision machined set of shims. An essential feature of this configuration is that when the shaft thermally expands lengthwise, the axial preload forces decrease in the bearing. It will run at a lower temperature than a face-to-face bearing in the same situation. It is much easier to use in industrial settings where operating temperatures vary significantly.
Attribute nameAttribute value
Product Information
Attribute nameAttribute value
Code410208
Shaft Size75mm
SealsNone
ConstructionBack to Back Matched Set
Material52100
PackageQTYPackage Quantity1
UOMUnit of MeasureEA
Dimensions
Attribute nameAttribute value
Bore (mm)75
D (mm)130
B (mm)78
d1 (mm)100
P (mm)65.5
r1-r2 (mm)2
a (mm)70
K (mm)2
b (mm)7
r5 (mm)0.6
l (mm)11.5
Abutment Dimensions
Attribute nameAttribute value
dbmin (mm)86
Dbmin (mm)86
Cbmin (mm)6
ramax (mm)2
rcmax (mm)0.6
Calculation Data
Attribute nameAttribute value
Nr (RPM)Reference speed3200
Nmax (RPM)Limiting speed5000
C (lb)Dynamic load capacity75761
C0 (lb)Static load capacity95544
Pu (lb)Fatigue load limit11016
eLimiting value0.43
Y0Calculation factor1.6
Y1Calculation factor1.6
Y2Calculation factor2.3
Mass
Attribute nameAttribute value
Weight(lbs)8.2
Tolerance Class
Attribute nameAttribute value
ClearanceCN
Safe Loads
Attribute nameAttribute value
Tmax (F)250
Tmin (F)-40