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SIGMA NJ 312 cylindrical roller bearings - Industrial Bearing

  SIGMA NJ 312 cylindrical roller bearings

SIGMA NJ 312 cylindrical roller bearings pdf

SIGMA NJ 312 cylindrical roller bearings Deal is 40x68x15 Size (mm) your source for OEM and accessories. We sell Genuine at discount prices.

Size (mm) 40x68x15
Bore Diameter (mm) 40
Outer Diameter (mm) 68
Width (mm) 15
d 40 mm
D 68 mm
B 15 mm
d1 49.7 mm
d2 47.6 mm
D1 58.25 mm
K 0.5 mm
C1 5.03 mm
r1,2 – min. 1 mm
r3,4 – min. 0.6 mm
a 14.8 mm
da – min. 44.6 mm
db – min. 44.6 mm
Da – max. 63.4 mm
Db – max. 63.8 mm
ra – max. 1 mm
rb – max. 0.6 mm
dn 51.6 mm
Basic dynamic load rating – C 12.4 kN
Basic static load rating – C0 7.6 kN
Fatigue load limit – Pu 0.32 kN
Limiting speed for grease lubrication 36000 r/min
Limiting speed for oil lubrication 56000 mm/min
Ball – Dw 7.144 mm
Ball – z 19
Gref 2.8 cm3
Calculation factor – f0 8.1
Preload class A – GA 65 N
Preload class B – GB 200 N
Preload class C – GC 390 N
Calculation factor – f 1
Calculation factor – f2A 1
Calculation factor – f2B 1.03
Calculation factor – f2C 1.05
Calculation factor – fHC 1.01
Preload class A 38 N/micron
Preload class B 60 N/micron
Preload class C 81 N/micron
r1,2 min. 1 mm
r3,4 min. 0.6 mm
da min. 44.6 mm
db min. 44.6 mm
Da max. 63.4 mm
Db max. 63.8 mm
ra max. 1 mm
rb max. 0.6 mm
Basic dynamic load rating C 12.4 kN
Basic static load rating C0 7.65 kN
Fatigue load limit Pu 0.32 kN
Attainable speed for grease lubrication 36000 r/min
Attainable speed for oil-air lubrication 56000 r/min
Ball diameter Dw 7.144 mm
Number of balls z 19
Reference grease quantity Gref 2.8 cm³
Preload class A GA 65 N
Static axial stiffness, preload class A 38 N/µm
Preload class B GB 200 N
Static axial stiffness, preload class B 60 N/µm
Preload class C GC 390 N
Static axial stiffness, preload class C 81 N/µm
Calculation factor f 1.06
Calculation factor f1 1
Calculation factor f2A 1
Calculation factor f2B 1.03
Calculation factor f2C 1.05
Calculation factor fHC 1.01
Calculation factor f0 8.1
Mass bearing 0.17 kg

  Detailed Parameters

  parameter:

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