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Insert bearings

EX309-28G2T04 - SNR

EX309-28G2T04

Spherical outer diameter, fixing by eccentric locking collar, seal with slinger, for low-temp. applications

Bearing inserts for bearing units, are proposed with different locking devices for easy assembly.

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
B - Width of Inner Ring42,9 mm
B1 - Overall width Inner Ring58,7 mm
B2 - Width of eccentric locking collar/nut20,6 mm
C - Width of Outer Ring30 mm
C1 - Distance center of OR to center of lubrication zone9 mm
d - Shaft diameter44,45 mm
d1 - Outer dia of eccent. Lock. collar / nut of adapter sleeve70 mm
D - Outer diameter of OR100 mm
G - Set screw size3/8-24UNF
m - Distance to set screw8 mm
r - Radius Inner Ring2
S - Distance front side/bearing centre19,8 mm
f0 - Factor13
SW - Wrench size4,763 mm
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PRODUCT PERFORMANCE
C - Dynamic load rating53 kN
C0 - Static load rating31,8 kN
Operating temperature min.-40 °C
Operating temperature max.100 °C
OTHER FEATURES
Mass1,47 kg
Recommended tightening torque for set screw16,8 N-m
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)3,05 Hz
BPFI - Over rolling frequency on inner (60 rpm)4,95 Hz
BSF - Over rolling frequency on rolling element (60 rpm)3,971 Hz
BRF - Rotational frequency – rolling element (60 rpm)1,986 Hz
FTF - Rotational frequency - cage (60 rpm)0,381 Hz