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Double row angular contact ball bearings

5311SNR - NTN

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter55 mm
D - External diameter120 mm
B - Bearing/Inner ring width49,2 mm
a - Charge load application point60,6 mm
α - Contact angle25 °
a min - Min position Groove3,86 mm
a max - Max position groove4,06 mm
rs - Min fillet radius2 mm
rNs - Min fillet radius0,6 mm
D3 - Max bottom groove diameter115,21 mm
b min - Min groove width3,1 mm
b max - Max groove width3,4 mm
r0 max - Max bottom groove radius0,6 mm
D4 max - Max outer diameter of assembled stop ring129,7 mm
f - Stop ring thickness2,77 mm
Snap ring referenceR120
Radial clearance classCN
Precision classP0
Mass2,327 kg
PRODUCT PERFORMANCE
C - Dynamic load95 kN
C0 - Static load73 kN
Cu - Fatigue limit load4,5 kN
N lim - Oil lubrication limit speed5000 tr/min
N lim - Grease lubrication limit speed3800 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR65 mm
Da max - Max shoulder diameter OR110 mm
Ca min - Mini segment position6,58 mm
Ca max - Max segment position6,88 mm
ra max - Max shaft & housing fillet radius2 mm
rNa max - Max fillet radius on segment side0,6 mm
Db min - Min stop ring position diameter131,5 mm