NTN 7228C
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
Machined
Cage Material
Phenolic Resin
Ball Material
Steel
Limiting Speed - Oil
5300 RPM
Limiting Speed - Grease
4000 RPM
Configuration
One
Factor
15
Static Load Rating
233000 N
Dynamic Load Rating
221000 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
140.000 mm
D
250.000 mm
B
42.000 mm
r
3.000 mm
r1
1.100 mm
Contact Angle
15 º
a (Load Center)
47.000 mm
da min
154.000 mm
Da max
236.000 mm
Db max
243.000 mm
ras max
2.500 mm
r1as max
1.000 mm
Double Row Width
84.000 mm
Triple Row Width
126.000 mm
Quadruple Row Width
168.000 mm
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