Bearing NK42/30 SKF - Boyal Industrial Pte ltd.

✖

Home

Stock Categories

Technical Articles

Angular Contact Ball Bearings

Tapered Roller Bearings

Linear Bearings

Home>Products>Needle Roller Bearing>Bearing NK42/30 SKF image

Bearing NK42/30 SKF image

Back to product page

Bearing NK42/30 SKF Product identifiers

Bearing number:71910 ACE/HCP4AH1
Size (mm):72x50x12
Bore Diameter (mm):72
Outer Diameter (mm):50
Width (mm):12
d:50 mm
D:72 mm
B:12 mm
d1:56.7 mm
d2:54.9 mm
D1:65.3 mm
K:0.5 mm
C1:3.53 mm
r1,2 - min.:0.6 mm
r3,4 - min.:0.3 mm
a:21.2 mm
da - min.:53.2 mm
db - min.:52 mm
Da - max.:68.8 mm
Db - max.:70 mm
ra - max.:0.6 mm
rb - max.:0.3 mm
dn:58.4 mm
Basic dynamic load rating - C:12.1 kN
Basic static load rating - C0:8.2 kN
Fatigue load limit - Pu:0.345 kN
Limiting speed for grease lubrication:28000 r/min
Limiting speed for oil lubrication:43000 mm/min
Ball - Dw:7.144 mm
Ball - z:21
Gref:1.7 cm3
Calculation factor - e:0.68
Calculation factor - Y2:1.41
Calculation factor - Y0:0.76
Calculation factor - X2:0.67
Calculation factor - Y1:0.92
Preload class A - GA:110 N
Preload class B - GB:330 N
Preload class C - GC:660 N
Calculation factor - f:1.15
Calculation factor - f1:0.98
Calculation factor - f2A:1
Calculation factor - f2B:1.04
Calculation factor - f2C:1.08
Calculation factor - fHC:1.01
Preload class A:107 N/micron
Preload class B:161 N/micron
Preload class C:211 N/micron
r1,2 min.:0.6 mm
r3,4 min.:0.3 mm
da min.:53.2 mm
db min.:52 mm
Da max.:68.8 mm
Db max.:70 mm
ra max.:0.6 mm
rb max.:0.3 mm
Basic dynamic load rating C:12.1 kN
Basic static load rating C0:8.15 kN
Fatigue load limit Pu:0.345 kN
Attainable speed for grease lubrication:28000 r/min
Attainable speed for oil-air lubrication:43000 r/min
Ball diameter Dw:7.144 mm
Number of balls z:21
Reference grease quantity Gref:1.7 cm³
Preload class A GA:110 N
Static axial stiffness, preload class A:107 N/µm
Preload class B GB:330 N
Static axial stiffness, preload class B:161 N/µm
Preload class C GC:660 N
Static axial stiffness, preload class C:211 N/µm
Calculation factor f:1.15
Calculation factor f1:0.98
Calculation factor f2A:1
Calculation factor f2B:1.04
Calculation factor f2C:1.08
Calculation factor fHC:1.01
Calculation factor e:0.68
Calculation factor (single, tandem) Y2:0.87
Calculation factor (single, tandem) Y0:0.38
Calculation factor (single, tandem) X2:0.41
Calculation factor (back-to-back, face-to-face) Y1:0.92
Calculation factor (back-to-back, face-to-face) Y2:1.41
Calculation factor (back-to-back, face-to-face) Y0:0.76
Calculation factor (back-to-back, face-to-face) X2:0.67
Mass bearing:0.11 kg

Contact Us

Boyal Industrial Pte ltd.: Email[email protected]; Address; Phone(Working Time); Fax

Send Now