NTN BNT212
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
21800 RPM
Limiting Speed - Grease
11000 RPM
Configuration
One
Factor
9.5
Static Load Rating
32500 N
Dynamic Load Rating
49000 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
60.000 mm
D
110.000 mm
B
22.000 mm
d1
77.000 mm
d2
70.200 mm
D1
96.400 mm
r
1.500 mm
r1
1.000 mm
Contact Angle
15 º
a
22.800 mm
da min
68.500 mm
db min
65.500 mm
Da max
101.500 mm
ras max
1.500 mm
r1as max
1.000 mm
Double Row Width
44.000 mm
Triple Row Width
66.000 mm
Quadruple Row Width
88.000 mm
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