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NMB SBT30 plain bearings - Industrial Bearing

  NMB SBT30 plain bearings

NMB SBT30 plain bearings pdf

NMB SBT30 plain bearings manufacturer and global supplier of reliable ball and roller … 55x90x18 Size (mm) NMB SBT30 plain bearings Industries Products Manufacturing & Engineering and Agricultural Bearings designed to meet the unique requirements of our targeted industries.

Size (mm) 55x90x18
Bore Diameter (mm) 55
Outer Diameter (mm) 90
Width (mm) 18
d 55 mm
D 90 mm
B 18 mm
d1 65.8 mm
d2 65.8 mm
D1 79.2 mm
K 0.5 mm
C1 4.88 mm
r1,2 – min. 1.1 mm
r3,4 – min. 0.6 mm
a 26 mm
da – min. 61 mm
db – min. 61 mm
Da – max. 84 mm
Db – max. 86.8 mm
ra – max. 1 mm
rb – max. 0.6 mm
dn 68.1 mm
Basic dynamic load rating – C 37.1 kN
Basic static load rating – C0 31 kN
Fatigue load limit – Pu 1.3 kN
Limiting speed for grease lubrication 14000 r/min
Limiting speed for oil lubrication 22000 mm/min
Ball – Dw 11.112 mm
Ball – z 18
Gref 5.1 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 230 N
Preload class B – GB 460 N
Preload class C – GC 920 N
Preload class D – GD 1840 N
Calculation factor – f 1.1
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 159 N/micron
Preload class B 207 N/micron
Preload class C 275 N/micron
Preload class D 372 N/micron
r1,2 min. 1.1 mm
r3,4 min. 0.6 mm
da min. 61 mm
db min. 61 mm
Da max. 84 mm
Db max. 86.8 mm
ra max. 1 mm
rb max. 0.6 mm
Basic dynamic load rating C 37.1 kN
Basic static load rating C0 31 kN
Fatigue load limit Pu 1.32 kN
Attainable speed for grease lubrication 14000 r/min
Attainable speed for oil-air lubrication 22000 r/min
Ball diameter Dw 11.112 mm
Number of balls z 18
Reference grease quantity Gref 5.1 cm³
Preload class A GA 230 N
Static axial stiffness, preload class A 159 N/µm
Preload class B GB 460 N
Static axial stiffness, preload class B 207 N/µm
Preload class C GC 920 N
Static axial stiffness, preload class C 275 N/µm
Preload class D GD 1840 N
Static axial stiffness, preload class D 372 N/µm
Calculation factor f 1.1
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 0.38 kg

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