NTN 678A
Single Row Radial Ball Bearings
(BRAND)：NTN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Technical Specifications
Type
Miniature / Extra Small Ball Bearing
Bore Type
Round
Material
High Carbon Chrome Steel
Cage Type
Pressed
Cage Material
Steel
Ball Material
Steel
Limiting Speed - Oil
45000 RPM
Limiting Speed - Grease
38000 RPM
Precision
Class 0
Configuration
One
Factor
15.9
Radial Internal Clearance
CN
Static Load Rating
252 N
Dynamic Load Rating
570 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
8.000 mm
D
12.000 mm
B
2.500 mm
r
0.100 mm
ras max
0.100 mm
