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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

3300 RPM

Limiting Speed - Grease

2200 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

47000 lbf210000 N210.00 kN

Dynamic Load Rating

21000 lbf93500 N93.50 kN

Weight

2.447 lb1.110 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

4.3307 in110.000 mm

D

5.5118 in140.000 mm

F

4.7244 in120.000 mm

B

1.1811 in30.000 mm

r

0.0394 in1.000 mm

s

0.0315 in0.800 mm

da min

4.5276 in115.000 mm

Da max

5.3150 in135.000 mm

ras max

0.0394 in1.000 mm