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Unit of Measure

Technical Specifications

Type

Needle Roller Bearing

Bore Type

Round

Material

High Carbon Chrome Steel

Cage Material

Steel

Limiting Speed - Oil

2100 rpm

Limiting Speed - Grease

1400 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

121000 lbf540000 N540.00 kN

Dynamic Load Rating

44000 lbf195000 N195 kN

Weight

9.237 lb4.19 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

7.0866 in180.000 mm

D

8.8583 in225.000 mm

F

7.6772 in195.000 mm

B

1.7717 in45.000 mm

r

0.0433 in1.1 mm

s

0.0591 in1.500 mm

da min

7.3425 in186.500 mm

Da max

8.6024 in218.500 mm

ras max

0.0394 in1.000 mm