NTN NNU4948K
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
2000 RPM
Limiting Speed - Grease
1700 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
1410000 N
Dynamic Load Rating
610000 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC
Dimensional Specifications
d
240.000 mm
D
320.000 mm
B
80.000 mm
C
80.000 mm
Fw
265.000 mm
r
2.100 mm
da min
251.000 mm
db min
258.000 mm
Da max
309.000 mm
Db min
304.000 mm
Db max
309.000 mm
ras max
2.000 mm
