NTN BNT203/GNP4
Single Angular Contact Ball Bearings for Motors and Lathes
(BRAND)：NTN
(Availability)：In Stock
Technical Specifications
Type
Main Spindle Bearing
Bore Type
Round
Material
High Carbon Chrome Steel
Cage Type
Machined
Cage Material
Phenolic Resin
Ball Material
Steel
Limiting Speed - Oil
74100 RPM
Limiting Speed - Grease
37000 RPM
Precision
ISO Class 4
Configuration
One
Preload
Normal
Factor
8.5
Static Load Rating
3800 N
Dynamic Load Rating
8550 N
Enclosure
Open
Weight
0.061 kg
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
17.000 mm
D
40.000 mm
B
12.000 mm
d1
24.200 mm
d2
21.400 mm
D1
33.600 mm
r
0.600 mm
r1
0.300 mm
Contact Angle
15 º
a
10.000 mm
da min
21.500 mm
db min
19.500 mm
Da max
35.500 mm
ras max
0.600 mm
r1as max
0.300 mm
Double Row Width
24.000 mm
Triple Row Width
36.000 mm
Quadruple Row Width
48.000 mm
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