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One direction thrust ball bearings

51211 - SNR

51211

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter55 mm
D - External diameter90 mm
D1 - Inner diameter outer ring57 mm
d1 - External diameter inner ring90 mm
T - Thrust bearing height25 mm
rs - Min fillet radius1 mm
Mass0,59 kg
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PRODUCT PERFORMANCE
Ca - Dynamic axial load rating69,4 kN
C0a - Static axial load rating159 kN
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)8 Hz
BPFI - Over rolling frequency on inner (60 rpm)8 Hz
BSF - Over rolling frequency on rolling element (60 rpm)5,708 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,854 Hz
FTF - Rotational frequency - cage (60 rpm)0,5 Hz
ABUTMENT
ra max - Max shaft & housing fillet radius1 mm
Da max - Max shoulder diameter OR69 mm
da min - Min shoulder diameter IR76 mm
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