Print Back
Unit of Measure

Technical Specifications

Type

Needle Roller Bearing

Bore Type

Round

Material

High Carbon Chrome Steel

Cage Material

Steel

Limiting Speed - Oil

8500 RPM

Limiting Speed - Grease

5500 RPM

Precision

ISO Class 0

Configuration

One

Enclosure

Open

Bearing Design

w/ Inner Ring

Oil Hole

w/ Oil Hole

Radial Internal Clearance

CN

Static Load Rating

20800 lbf92500 N92.50 kN

Dynamic Load Rating

11900 lbf53000 N53.00 kN

Weight

0.749 lb0.340 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Machined-Ring Needle Roller Bearing w/ Inner Ring - NA49.R, NA59, NA69R, NK.R+1R Series - Dimensions

d

1.5748 in40.000 mm

D

2.4409 in62.000 mm

F

1.8898 in48.000 mm

B

1.1811 in30.000 mm

r

0.0236 in0.600 mm

s

0.0394 in1.000 mm

da min

1.7323 in44.000 mm

Da max

2.2835 in58.000 mm

ras max

0.0236 in0.600 mm