NTN NNU4972K
Double Row Cylindrical Roller Bearing
(BRAND)：NTN
(Availability)：In Stock
Technical Specifications
Type
Cylindrical Roller Bearing
Bore Type
Tapered
Material
Hardened Alloy Steel
Cage Material
High Strength, 2 piece, Machined Brass
Limiting Speed - Oil
1300 RPM
Limiting Speed - Grease
1100 RPM
Taper
1:12
Precision
ISO Class 0
Tolerance
ISO Class 0 (RBEC 1)
Oil Hole
w/o Oil Hole
Radial Internal Clearance
CN
Static Load Rating
3250000 N
Dynamic Load Rating
1270000 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
360.000 mm
D
480.000 mm
B
118.000 mm
C
118.000 mm
Fw
398.000 mm
r
3.000 mm
da min
373.000 mm
db min
383.000 mm
Da max
467.000 mm
ras max
2.500 mm
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