Unit of Measure

Technical Specifications

Type

Needle Roller Bearing

Bore Type

Round

Material

High Carbon Chrome Steel

Cage Material

Steel

Limiting Speed - Oil

4500 rpm

Limiting Speed - Grease

3000 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

31500 lbf141000 N141.00 kN

Dynamic Load Rating

31500 lbf141000 N141.00 kN

Weight

3.638 lb1.650 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Machined-Ring Needle Roller Bearing w/ Inner Ring - MR+MI Series - Dimensions

d

3.0000 in76.200 mm

D

4.5000 in114.300 mm

F

3.5000 in88.900 mm

C

1.7500 in44.450 mm

B

1.7598 in44.700 mm

r

0.07870 in2.000 mm

s

0.1181 in3.000 mm

da min

3.3071 in84.000 mm

Da max

4.1929 in106.500 mm

ras max

0.0787 in2.000 mm