NTN 7221B
Single Angular Contact Ball Bearings
(BRAND)：NTN
(Availability)：In Stock
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
4300 RPM
Limiting Speed - Grease
3200 RPM
Configuration
One
Static Load Rating
129000 N
Dynamic Load Rating
142000 N
Enclosure
Open
Weight
3.870 kg
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
105.000 mm
D
190.000 mm
B
36.000 mm
r
2.100 mm
r1
1.100 mm
Contact Angle
40 º
a (Load Center)
80.000 mm
da min
117.000 mm
db min
112.000 mm
Da max
178.000 mm
Db max
183.000 mm
ras max
2.000 mm
r1as max
1.000 mm
Double Row Width
72.000 mm
Triple Row Width
108.000 mm
Quadruple Row Width
144.000 mm
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