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NTN 7221CG/GNP4 Precision Ball Bearing
MODEL 7221CG/GNP4
$7,933.27 Each
Prices are subject to change
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Type
Angular Contact Ball Bearing
Enclosure
Open
Preload
Normal
Static Load Rating
32000 lbf
Cage Type
Machined
Material
High Carbon Chrome Steel
Factor
14.5
Precision
ISO Class 4
Bore Type
Round
Ball Material
Steel
Cage Material
Phenolic Resin
Limiting Speed - Oil
7300 RPM
Dynamic Load Rating
36500 lbf
Operating Temperature Range
-40 to 250 °F
Configuration
One
Limiting Speed - Grease
4900 RPM
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 | 32000 lbf143000 N143.00 kN |
Dynamic Load Rating | 36500 lbf162000 N162.00 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 4.1339 in105.000 mm |
D | 7.4803 in190.000 mm |
B | 1.4173 in36.000 mm |
r | 0.0827 in2.100 mm |
r1 | 0.0433 in1.100 mm |
Contact Angle | 15 |
a (Load Center) | 1.4961 in38.000 mm |
da min | 4.6063 in117.000 mm |
Da max | 7.0079 in178.000 mm |
Db max | 7.2047 in183.000 mm |
ras max | 0.0787 in2.000 mm |
r1as max | 0.0394 in1.000 mm |
Double Row Width | 2.8346 in72.000 mm |
Triple Row Width | 4.2520 in108.000 mm |
Quadruple Row Width | 5.6693 in144.000 mm |
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