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Double Angular Contact Ball Bearing for Motors and Lathes

High-Speed Multi-Row Angular Contact Ball Bearing, Tandem Arrangement
Quadruple-Row-Angular-Contact-Ball-Bearing-Machline-Q18-Q21-Q25-Type

High-Speed Multi-Row Angular Contact Ball Bearing, Tandem Arrangement
Type N/A Angular Contact Ball Bearing
Bore Type N/A Round
Material N/A High Carbon Chrome Steel
Cage Type N/A Fiber Glass Reinforced N/A Machined
Cage Material N/A Nylon N/A Phenolic Resin
Ball Material N/A Steel
Limiting Speed - Oil N/A N/A 13875 RPM
Limiting Speed - Grease N/A N/A 8325 RPM
d N/A 2.7559 in70.000 mm N/A 4.3307 in110.000 mm
D N/A 4.3307 in110.000 mm N/A 6.6929 in170.000 mm
B N/A 0.7874 in20.000 mm N/A 1.1024 in28.000 mm
4B N/A 3.1496 in80.000 mm N/A 4.4094 in112.000 mm
d1 N/A 3.3386 in84.800 mm N/A
D1 N/A 3.7480 in95.200 mm N/A
D2 N/A 3.9016 in99.100 mm N/A
r N/A 0.0433 in1.100 mm N/A 0.0787 in2.000 mm
r1 N/A 0.0236 in0.600 mm N/A 0.0394 in1.000 mm
Contact Angle N/A 20 º N/A 15 º
da min N/A 3.0315 in77.000 mm N/A
Da max N/A 4.0551 in103.000 mm N/A
Db max N/A 4.1535 in105.500 mm N/A
ras max N/A 0.0394 in1.000 mm N/A
r1as max N/A 0.0236 in0.600 mm N/A
Precision N/A Special Precision N/A ISO Class 4
Configuration N/A Four
Preload N/A N/A Normal
Radial Internal Clearance N/A Special Clearance N/A
Enclosure N/A Open
Weight N/A N/A 18.783 lb8.520 kg
Operating Temperature Range N/A -40 to 250 ºF-40 to 120 ºC