NTN BNT205
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
54700 RPM
Limiting Speed - Grease
27300 RPM
Configuration
One
Factor
9.2
Static Load Rating
6700 N
Dynamic Load Rating
12700 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
25.000 mm
D
52.000 mm
B
15.000 mm
d1
33.800 mm
d2
30.700 mm
D1
44.200 mm
r
1.000 mm
r1
0.600 mm
Contact Angle
15 º
a
12.500 mm
da min
30.500 mm
db min
29.500 mm
Da max
46.500 mm
ras max
1.000 mm
r1as max
0.600 mm
Double Row Width
30.000 mm
Triple Row Width
45.000 mm
Quadruple Row Width
60.000 mm
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