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NBS NA 4915 needle roller bearings MODELS
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NBS NA 4915 needle roller bearings
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Needle Roller Bearings
NBS NA 4915 needle roller bearings SPECIFICATIONS
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- Ball Bearings
- KOYO
- B00308
- N/A
- 9.0
- KOYO
- Bofa Import and Export Co., Ltd.2020-07-10 09:46:19
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Technology
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- Ball Bearings
- KOYO
- B00308
- N/A
- 9.0
- KOYO
Code system
NBS NA 4915 needle roller bearings Size Chart (mm/inches) | |
---|---|
Series | 290000 |
Cone Part Number | EE291200D |
Cup Part Number | 291750 |
Design Units | Imperial |
Bearing Weight | 114.70 lb |
Cage Type | Stamped Steel |
Aa - Cage-Cone Backface Clearance | 0 in |
d | 12 in |
D | 17.5 in |
B - Double Cone Width | 4.2500 in |
C - Cup Width | 1.5625 in |
T - Bearing Width across Cups | 4.3749 in |
R - Cone Frontface To Clear Radius1 | 0.310 in |
r - Cup Backface To Clear Radius2 | 0.06 in |
da - Cone Frontface Backing Diameter | 13.27 in |
Db - Cup Backface Backing Diameter | 16.38 in |
Ab - Cage-Cone Frontface Clearance | 0.34 in |
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 | 51700 lbf |
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 | 347000 lbf |
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 | 90000 lbf |
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 33400 lbf |
K - Factor7 | 1.55 |
e - ISO Factor8 | 0.38 |
Y1 - ISO Factor9 | 1.79 |
Y2 - ISO Factor10 | 2.66 |
G1 - Heat Generation Factor (Roller-Raceway)11 | 1580 |
Cg - Geometry Factor12 | 0.156 |
Contact Us
- Bofa Import and Export Co., Ltd.
- AddressYan Dian industrial, Linqing City, Shan dong Province, China
- Phone(Working Time)86-15153698497
- Fax
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