IKO BR 142212 needle roller bearings
IKO BR 142212 needle roller bearings Needs Analysis , Manufacturing 115x75x20 Size (mm) Service . Get Your Free.
Size (mm) | 115x75x20 |
Bore Diameter (mm) | 115 |
Outer Diameter (mm) | 75 |
Width (mm) | 20 |
d | 75 mm |
D | 115 mm |
B | 20 mm |
d1 | 90 mm |
d2 | 88.2 mm |
D2 | 102.8 mm |
b | 1.5 mm |
C1 | 10.9 mm |
C2 | 4.4 mm |
C3 | 2.9 mm |
r1,2 – min. | 1.1 mm |
r3,4 – min. | 0.6 mm |
a | 22.3 mm |
da – min. | 81 mm |
db – min. | 81 mm |
Da – max. | 109 mm |
Db – max. | 111.8 mm |
ra – max. | 1 mm |
rb – max. | 0.6 mm |
dn | 91.1 mm |
Basic dynamic load rating – C | 19.9 kN |
Basic static load rating – C0 | 17.6 kN |
Fatigue load limit – Pu | 0.75 kN |
Limiting speed for grease lubrication | 16000 r/min |
Limiting speed for oil lubrication | 24000 mm/min |
Ball – Dw | 7.938 mm |
Ball – z | 30 |
Gref | 7.7 cm3 |
Calculation factor – f0 | 9.7 |
Preload class A – GA | 65 N |
Preload class B – GB | 130 N |
Preload class C – GC | 390 N |
Calculation factor – f | 1 |
Calculation factor – f2A | 1 |
Calculation factor – f2B | 1.02 |
Calculation factor – f2C | 1.05 |
Calculation factor – fHC | 1 |
Preload class A | 50 N/micron |
Preload class B | 65 N/micron |
Preload class C | 104 N/micron |
r1,2 min. | 1.1 mm |
r3,4 min. | 0.6 mm |
da min. | 81 mm |
db min. | 81 mm |
Da max. | 109 mm |
Db max. | 111.8 mm |
ra max. | 1 mm |
rb max. | 0.6 mm |
Basic dynamic load rating C | 26.5 kN |
Basic static load rating C0 | 29 kN |
Fatigue load limit Pu | 0.75 kN |
Attainable speed for grease lubrication | 16000 r/min |
Attainable speed for oil-air lubrication | 24000 r/min |
Ball diameter Dw | 7.938 mm |
Number of balls z | 30 |
Reference grease quantity Gref | 7.7 cm³ |
Preload class A GA | 65 N |
Static axial stiffness, preload class A | 50 N/µm |
Preload class B GB | 130 N |
Static axial stiffness, preload class B | 65 N/µm |
Preload class C GC | 390 N |
Static axial stiffness, preload class C | 104 N/µm |
Calculation factor f | 1.08 |
Calculation factor f1 | 1 |
Calculation factor f2A | 1 |
Calculation factor f2B | 1.02 |
Calculation factor f2C | 1.05 |
Calculation factor fHC | 1 |
Calculation factor f0 | 9.7 |
Mass bearing | 0.7 kg |
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