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NTN 6312D2 deep groove ball bearings - Industrial Bearing

  NTN 6312D2 deep groove ball bearings

NTN 6312D2 deep groove ball bearings pdf

NTN 6312D2 deep groove ball bearings Manufacturers , 19x7x6 Size (mm) 7 Outer Diameter (mm) Online Wholesale Suppliers‎ !

Size (mm) 19x7x6
Bore Diameter (mm) 19
Outer Diameter (mm) 7
Width (mm) 6
d 7 mm
D 19 mm
B 6 mm
d1 10.8 mm
d2 10.8 mm
D1 15.2 mm
K 0.5 mm
C1 3.65 mm
r1,2 – min. 0.3 mm
r3,4 – min. 0.15 mm
a 6.1 mm
da – min. 9 mm
db – min. 9 mm
Da – max. 17 mm
Db – max. 18.2 mm
ra – max. 0.3 mm
rb – max. 0.15 mm
dn 11.7 mm
Basic dynamic load rating – C 2.4 kN
Basic static load rating – C0 0.95 kN
Fatigue load limit – Pu 0.04 kN
Limiting speed for grease lubrication 95000 r/min
Limiting speed for oil lubrication 140000 mm/min
Ball – Dw 3.572 mm
Ball – z 8
Gref 0.12 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 15 N
Preload class B – GB 30 N
Preload class C – GC 60 N
Preload class D – GD 120 N
Calculation factor – f 1.03
Calculation factor – f1 0.99
Calculation factor – f2A 1
Calculation factor – f2B 1.02
Calculation factor – f2C 1.05
Calculation factor – f2D 1.08
Calculation factor – fHC 1
Preload class A 23 N/micron
Preload class B 29 N/micron
Preload class C 38 N/micron
Preload class D 51 N/micron
r1,2 min. 0.3 mm
r3,4 min. 0.15 mm
da min. 9 mm
db min. 9 mm
Da max. 17 mm
Db max. 18.2 mm
ra max. 0.3 mm
rb max. 0.15 mm
Basic dynamic load rating C 2.42 kN
Basic static load rating C0 0.95 kN
Fatigue load limit Pu 0.04 kN
Attainable speed for grease lubrication 95000 r/min
Attainable speed for oil-air lubrication 140000 r/min
Ball diameter Dw 3.572 mm
Number of balls z 8
Reference grease quantity Gref 0.12 cm³
Preload class A GA 15 N
Static axial stiffness, preload class A 23 N/µm
Preload class B GB 30 N
Static axial stiffness, preload class B 29 N/µm
Preload class C GC 60 N
Static axial stiffness, preload class C 38 N/µm
Preload class D GD 120 N
Static axial stiffness, preload class D 51 N/µm
Calculation factor f 1.03
Calculation factor f1 0.99
Calculation factor f2A 1
Calculation factor f2B 1.02
Calculation factor f2C 1.05
Calculation factor f2D 1.08
Calculation factor fHC 1
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 0.008 kg

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