NTN 7221CG/GNP4
Single Angular Contact Ball Bearings
(BRAND)：NTN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Technical Specifications
Type
Angular Contact Ball Bearing
Bore Type
Round
Material
High Carbon Chrome Steel
Cage Type
Machined
Cage Material
Phenolic Resin
Ball Material
Steel
Limiting Speed - Oil
7300 RPM
Limiting Speed - Grease
4900 RPM
Precision
ISO Class 4
Configuration
One
Preload
Normal
Factor
14.5
Static Load Rating
143000 N
Dynamic Load Rating
162000 N
Enclosure
Open
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
15 º
a (Load Center)
38.000 mm
da min
117.000 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
