NTN BNT204
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
61900 RPM
Limiting Speed - Grease
30900 RPM
Configuration
One
Factor
8.8
Static Load Rating
5350 N
Dynamic Load Rating
11200 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
20.000 mm
D
47.000 mm
B
14.000 mm
d1
29.400 mm
d2
26.200 mm
D1
39.400 mm
r
1.000 mm
r1
0.600 mm
Contact Angle
15 º
a
11.500 mm
da min
25.500 mm
db min
24.500 mm
Da max
41.500 mm
ras max
1.000 mm
r1as max
0.600 mm
Double Row Width
28.000 mm
Triple Row Width
42.000 mm
Quadruple Row Width
56.000 mm
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