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NTN 7312B Medium Size Ball Bearing(Standard)
MODEL 7312B
$777.62 Each
Prices are subject to change
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Returnable:No
Technical Specifications
Type | Angular Contact Ball Bearing |
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Pressed |
Cage Material | Steel |
Ball Material | Steel |
Limiting Speed - Oil | 6800 RPM |
Limiting Speed - Grease | 5100 RPM |
Precision | ISO Class 0 |
Configuration | One |
Static Load Rating | 14800 lbf66000 N66.00 kN |
Dynamic Load Rating | 20200 lbf90000 N90.00 kN |
Enclosure | Open |
Weight | 3.880 lb1.760 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 2.3622 in60.000 mm |
D | 5.1181 in130.000 mm |
B | 1.2205 in31.000 mm |
r | 0.0827 in2.100 mm |
r1 | 0.0433 in1.100 mm |
Contact Angle | 40 |
a (Load Center) | 2.2047 in56.000 mm |
da min | 2.8346 in72.000 mm |
db min | 2.6378 in67.000 mm |
Da max | 4.6457 in118.000 mm |
Db max | 4.8425 in123.000 mm |
ras max | 0.0787 in2.000 mm |
r1as max | 0.0394 in1.000 mm |
Double Row Width | 2.4409 in62.000 mm |
Triple Row Width | 3.6614 in93.000 mm |
Quadruple Row Width | 4.8819 in124.000 mm |
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