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ZEN SF689-2RS deep groove ball bearings - Industrial Bearing

  ZEN SF689-2RS deep groove ball bearings

ZEN SF689-2RS deep groove ball bearings pdf

Online shopping 37x25x7 Size (mm) ZEN SF689-2RS deep groove ball bearings from a great selection at Store. … 25 Outer Diameter (mm) Accessories.

Size (mm) 37x25x7
Bore Diameter (mm) 37
Outer Diameter (mm) 25
Width (mm) 7
d 25 mm
D 37 mm
B 7 mm
d1 29.1 mm
d2 29.1 mm
D1 33.1 mm
r1,2 – min. 0.3 mm
r3,4 – min. 0.15 mm
a 7.7 mm
da – min. 27 mm
db – min. 27 mm
Da – max. 35 mm
Db – max. 36.2 mm
ra – max. 0.3 mm
rb – max. 0.15 mm
dn 29.5 mm
Basic dynamic load rating – C 4.2 kN
Basic static load rating – C0 3.2 kN
Fatigue load limit – Pu 0.137 kN
Limiting speed for grease lubrication 45000 r/min
Limiting speed for oil lubrication 70000 mm/min
Ball – Dw 3.175 mm
Ball – z 20
Gref 0.21 cm3
Calculation factor – f0 16.4
Preload class A – GA 22 N
Preload class B – GB 66 N
Preload class C – GC 132 N
Calculation factor – f 1
Calculation factor – f2A 1
Calculation factor – f2B 1.1
Calculation factor – f2C 1.18
Calculation factor – fHC 1.02
Preload class A 29 N/micron
Preload class B 49 N/micron
Preload class C 71 N/micron
r1,2 min. 0.3 mm
r3,4 min. 0.15 mm
da min. 27 mm
db min. 27 mm
Da max. 35 mm
Db max. 36.2 mm
ra max. 0.3 mm
rb max. 0.15 mm
Basic dynamic load rating C 4.16 kN
Basic static load rating C0 3.2 kN
Fatigue load limit Pu 0.137 kN
Attainable speed for grease lubrication 45000 r/min
Attainable speed for oil-air lubrication 70000 r/min
Ball diameter Dw 3.175 mm
Number of balls z 20
Reference grease quantity Gref 0.21 cm³
Preload class A GA 22 N
Static axial stiffness, preload class A 29 N/µm
Preload class B GB 66 N
Static axial stiffness, preload class B 49 N/µm
Preload class C GC 132 N
Static axial stiffness, preload class C 71 N/µm
Calculation factor f 1.11
Calculation factor f1 1
Calculation factor f2A 1
Calculation factor f2B 1.1
Calculation factor f2C 1.18
Calculation factor fHC 1.02
Calculation factor f0 16.4
Mass bearing 0.019 kg

  Detailed Parameters

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