NTN BNT211
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
24400 RPM
Limiting Speed - Grease
12300 RPM
Configuration
One
Factor
9.5
Static Load Rating
26200 N
Dynamic Load Rating
40500 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
55.000 mm
D
100.000 mm
B
21.000 mm
d1
69.000 mm
d2
62.800 mm
D1
86.400 mm
r
1.500 mm
r1
1.000 mm
Contact Angle
15 º
a
21.000 mm
da min
63.500 mm
db min
60.500 mm
Da max
91.500 mm
ras max
1.500 mm
r1as max
1.000 mm
Double Row Width
42.000 mm
Triple Row Width
63.000 mm
Quadruple Row Width
84.000 mm
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