NTN BNT911
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
27600 RPM
Limiting Speed - Grease
13800 RPM
Configuration
One
Factor
10.7
Static Load Rating
11600 N
Dynamic Load Rating
14600 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
55.000 mm
D
80.000 mm
B
13.000 mm
d1
63.200 mm
d2
60.100 mm
D1
71.800 mm
r
1.000 mm
r1
0.600 mm
Contact Angle
15 º
a
15.600 mm
da min
60.500 mm
db min
59.500 mm
Da max
74.500 mm
ras max
1.000 mm
r1as max
0.600 mm
Double Row Width
26.000 mm
Triple Row Width
39.000 mm
Quadruple Row Width
52.000 mm
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