Item # 7221B, Single Angular Contact Ball Bearing - Open Type On NTN Bearing Corp. of America

Bearing Finder
Customizable search tool featuring exhaustive data sets, comprehensive part
interchanges and interactive CAD drawings

CAD (0) ▾

Request Information Add CAD Drawing to Cart Buy it now

Unit of Measure

Order Now | Technical Specifications | Dimensional Specifications

Order Now

Ordering Options

Find a Distributor

Contact NTN Customer Support Specialist

Order through NTN DOL (Authorized Distributors Only)

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 4300 RPM
Limiting Speed - Grease	N/A 3200 RPM
Configuration	N/A One
Static Load Rating	N/A 29000 lbf129000 N129.00 kN
Dynamic Load Rating	N/A 32000 lbf142000 N142.00 kN
Enclosure	N/A Open
Weight	N/A 8.532 lb3.870 kg
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Loading zoom Open Image Single Angular Contact Ball Bearings - Open Type - Dimensions
d	N/A 4.1339 in105.000 mm
D	N/A 7.4803 in190.000 mm
B	N/A 1.4173 in36.000 mm
r	N/A 0.0827 in2.100 mm
r1	N/A 0.0433 in1.100 mm
Contact Angle	N/A 40 º
a (Load Center)	N/A 3.1496 in80.000 mm
da min	N/A 4.6063 in117.000 mm
db min	N/A 4.4094 in112.000 mm
Da max	N/A 7.0079 in178.000 mm
Db max	N/A 7.2047 in183.000 mm
ras max	N/A 0.0787 in2.000 mm
r1as max	N/A 0.0394 in1.000 mm
Double Row Width	N/A 2.8346 in72.000 mm
Triple Row Width	N/A 4.2520 in108.000 mm
Quadruple Row Width	N/A 5.6693 in144.000 mm