Item # 7312DB, Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement On NTN Bearing Corp. of America

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Technical Specifications

Type	N/A Angular Contact Ball Bearing
Bore Type	N/A Round
Material	N/A High Carbon Chrome Steel
Cage Type	N/A Pressed
Cage Material	N/A Steel
Ball Material	N/A Steel
Limiting Speed - Oil	N/A 5500 RPM
Limiting Speed - Grease	N/A 4100 RPM
Precision	N/A ISO Class 0
Configuration	N/A Two
Static Load Rating	N/A 29700 lbf132000 N132.00 kN
Dynamic Load Rating	N/A 33000 lbf146000 N146.00 kN
Enclosure	N/A Open
Weight	N/A 7.760 lb3.520 kg
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Loading zoom Open Image Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement - Dimensions
d	N/A 2.3622 in60.000 mm
D	N/A 5.1181 in130.000 mm
B	N/A 1.2205 in31.000 mm
2B	N/A 2.4409 in62.000 mm
r	N/A 0.0827 in2.100 mm
r1	N/A 0.0433 in1.100 mm
Contact Angle	N/A 30 º
da min	N/A 2.8346 in72.000 mm
Db max	N/A 4.8425 in123.000 mm
ras max	N/A 0.0787 in2.000 mm
r1as max	N/A 0.0394 in1.000 mm