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

Technical Specifications

Type

Cylindrical Roller Bearing

Bore Type

Tapered

Material

Hardened Alloy Steel

Cage Material

High Strength, 2 piece, Machined Brass

Taper

1:12

Precision

Special Precision

Configuration

Two

Oil Hole

w/o Oil Hole

Radial Internal Clearance

C1NA

Static Load Rating

340000 lbf1510000 N1510.00 kN

Dynamic Load Rating

155000 lbf690000 N690.00 kN

Enclosure

Open

Weight

52.572 lb23.846 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

11.0236 in280.000 mm

D

14.9606 in380.000 mm

B

2.9528 in75 mm

C

2.9528 in75 mm

Ew

14.0157 in356.000 mm

r

0.0827 in2.100 mm

da min

11.4567 in291.000 mm

ras max

0.0787 in2 mm