NTN BNT903DTUP
Double 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
38000 RPM
Limiting Speed - Grease
29000 RPM
Seal Type
None
Seal Material
None
Precision
Special Precision
Configuration
Two
Factor
0.0
Static Load Rating
3900 N
Dynamic Load Rating
6300 N
Enclosure
Open
Weight
0.354 kg
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
17.000 mm
D
30.000 mm
B
7.000 mm
2B
14.000 mm
d1
21.000 mm
d2
19.400 mm
D1
26.000 mm
r
0.300 mm
r1
0.150 mm
Contact Angle
15 º
da min
19.200 mm
db min
18.200 mm
Da max
28.000 mm
ras max
0.300 mm
r1as max
0.150 mm
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