Unit of Measure

Technical Specifications

Type

Needle Roller Bearing

Bore Type

Round

Material

High Carbon Chrome Steel

Cage Material

Steel

Limiting Speed - Grease

4800 rpm

Precision

ISO Class 0

Configuration

One

Enclosure

Double Sealed

Bearing Design

w/ Inner Ring

Oil Hole

w/ Oil Hole

Radial Internal Clearance

CN

Static Load Rating

8900 lbf39500 N39.50 kN

Dynamic Load Rating

5100 lbf22700 N22.70 kN

Weight

0.386 lb0.175 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Machined-Ring Needle Roller Bearing w/ Inner Ring - NA49 Series, Double Sealed - Dimensions

d

1.3780 in35.000 mm

D

2.1654 in55.000 mm

F

1.6535 in42.000 mm

C

0.7874 in20.000 mm

B

0.8268 in21.000 mm

r

0.02360 in0.600 mm

s

0.0315 in0.800 mm

da min

1.5354 in39.000 mm

Da max

1.7717 in45.000 mm

ras max

0.0236 in0.6 mm