NTN NNU4976
Double Row Cylindrical Roller Bearing
(BRAND)：NTN
(Availability)：In Stock
Technical Specifications
Type
Cylindrical Roller Bearing
Bore Type
Cylindrical
Material
Hardened Alloy Steel
Cage Material
High Strength, 2 piece, Machined Brass
Limiting Speed - Oil
1200 RPM
Limiting Speed - Grease
1000 RPM
Precision
ISO Class 0
Configuration
Two
Tolerance
ISO Class 0 (RBEC 1)
Oil Hole
w/o Oil Hole
Radial Internal Clearance
CN
Static Load Rating
4050000 N
Dynamic Load Rating
1630000 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
380.000 mm
D
520.000 mm
B
140.000 mm
C
140.000 mm
Fw
425.000 mm
r
4.000 mm
da min
396.000 mm
db min
408.000 mm
Da max
504.000 mm
ras max
3 mm
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