Unit of Measure

Technical Specifications

Type

Needle Roller Bearing

Bore Type

Round

Material

High Carbon Chrome Steel

Cage Material

Steel

Limiting Speed - Grease

3400 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

14400 lbf64000 N64 kN

Dynamic Load Rating

6850 lbf30500 N30.50 kN

Weight

0.650 lb0.295 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

1.9685 in50.000 mm

D

2.83460 in72.000 mm

F

2.2835 in58.000 mm

C

0.8661 in22.000 mm

B

0.9055 in23.000 mm

r

0.02360 in0.600 mm

s

0.0394 in1.000 mm

da min

2.1260 in54.000 mm

Da max

2.4016 in61.000 mm

ras max

0.0236 in0.6 mm