Print Back
    The rollers in the NN type bearing are guided by the ribs of the inner ring.
Unit of Measure

Technical Specifications

Type

N/A Cylindrical Roller Bearing

Bore Type

N/A Tapered

Material

N/A Hardened Alloy Steel

Cage Material

N/A High Strength, 2 piece, Machined Brass

Limiting Speed - Oil

N/A 4200 rpm

Limiting Speed - Grease

N/A 3600 rpm

Taper

N/A 1:12

Precision

N/A ISO Class 0

Tolerance

N/A ISO Class 0 (RBEC 1)

Oil Hole

N/A w/o Oil Hole

Radial Internal Clearance

N/A CN

Static Load Rating

N/A 81000 lbf360000 N360.00 kN

Dynamic Load Rating

N/A 41000 lbf183000 N183.00 kN

Enclosure

N/A Open

Weight

N/A 5.776 lb2.620 kg

Operating Temperature Range

N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NNU - Dimensions

d

N/A 4.7244 in120 mm

D

N/A 6.4961 in165 mm

B

N/A 1.7717 in45 mm

C

N/A 1.7717 in45 mm

Fw

N/A 5.2953 in134.500 mm

r

N/A 0.0433 in1.100 mm

da min

N/A 4.9803 in126.500 mm

db min

N/A 5.1181 in130.000 mm

Da max

N/A 6.2402 in158.500 mm

Db min

N/A 6.1614 in156.500 mm

Db max

N/A 6.2402 in158.500 mm

ras max

N/A 0.0394 in1 mm