Bearing NUP 2311 E NACHI -

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NACHI PZS Series Hydraulic Piston Pumps Origin Japan

NACHI PZE Series Hydraulic Piston Pumps Origin Japan

Komastu Gear Pump Origin Japan

Home>Products>Cylindrical Roller Bearings Distributior>Bearing NUP 2311 E NACHI image

Bearing NUP 2311 E NACHI image

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Bearing NUP 2311 E NACHI Product identifiers

Bearing number:71936 CD/HCP4A
Size (mm):250x180x33
Bore Diameter (mm):250
Outer Diameter (mm):180
Width (mm):33
d:180 mm
D:250 mm
B:33 mm
d1:201.6 mm
d2:201.6 mm
D1:228.4 mm
r1,2 - min.:2 mm
r3,4 - min.:1 mm
a:45.4 mm
da - min.:189 mm
db - min.:189 mm
Da - max.:241 mm
Db - max.:245 mm
ra - max.:2 mm
rb - max.:1 mm
dn:207.4 mm
Basic dynamic load rating - C:168 kN
Basic static load rating - C0:212 kN
Fatigue load limit - Pu:6.1 kN
Limiting speed for grease lubrication:6700 r/min
Limiting speed for oil lubrication:9500 mm/min
Ball - Dw:22.225 mm
Ball - z:27
Gref:54 cm3
Calculation factor - f0:16.3
Preload class A - GA:630 N
Preload class B - GB:1260 N
Preload class C - GC:2520 N
Preload class D - GD:5040 N
Calculation factor - f:1
Calculation factor - f2A:1
Calculation factor - f2B:1.07
Calculation factor - f2C:1.12
Calculation factor - f2D:1.18
Calculation factor - fHC:1.04
Preload class A:203 N/micron
Preload class B:278 N/micron
Preload class C:392 N/micron
Preload class D:573 N/micron
r1,2 min.:2 mm
r3,4 min.:1 mm
da min.:189 mm
db min.:189 mm
Da max.:241 mm
Db max.:245 mm
ra max.:2 mm
rb max.:1 mm
Basic dynamic load rating C:168 kN
Basic static load rating C0:212 kN
Fatigue load limit Pu:6.1 kN
Attainable speed for grease lubrication:6700 r/min
Attainable speed for oil-air lubrication:9500 r/min
Ball diameter Dw:22.225 mm
Number of balls z:27
Reference grease quantity Gref:54 cm³
Preload class A GA:630 N
Static axial stiffness, preload class A:203 N/µm
Preload class B GB:1260 N
Static axial stiffness, preload class B:278 N/µm
Preload class C GC:2520 N
Static axial stiffness, preload class C:392 N/µm
Preload class D GD:5040 N
Static axial stiffness, preload class D:573 N/µm
Calculation factor f:1.25
Calculation factor f1:1
Calculation factor f2A:1
Calculation factor f2B:1.07
Calculation factor f2C:1.12
Calculation factor f2D:1.18
Calculation factor fHC:1.04
Calculation factor f0:16.3
Mass bearing:3.48 kg

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