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

2500 rpm

Limiting Speed - Grease

1700 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

109000 lbf485000 N485.00 kN

Dynamic Load Rating

47000 lbf209000 N209.00 kN

Weight

8.929 lb4.050 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series - Dimensions

d

5.5118 in140.000 mm

D

7.48030 in190.000 mm

F

6.2992 in160.000 mm

B

1.96850 in50.000 mm

r

0.05910 in1.500 mm

s

0.0591 in1.500 mm

da min

5.8268 in148.000 mm

Da max

7.1654 in182.000 mm

ras max

0.0591 in1.5 mm