NTN NNU4988K
Double Row Cylindrical Roller Bearing
(BRAND)：NTN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Technical Specifications
Type
Cylindrical Roller Bearing
Bore Type
Tapered
Material
Hardened Alloy Steel
Cage Material
High Strength, 2 piece, Machined Brass
Limiting Speed - Oil
1000 RPM
Limiting Speed - Grease
850 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
5550000 N
Dynamic Load Rating
2150000 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
440.000 mm
D
600.000 mm
B
160.000 mm
C
160.000 mm
Fw
492.000 mm
r
4.000 mm
da min
456.000 mm
db min
469.000 mm
Da max
584.000 mm
ras max
3 mm
