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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

1200 RPM

Limiting Speed - Grease

800 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

595000 lbf2640000 N2640.00 kN

Dynamic Load Rating

243000 lbf1080000 N1080.00 kN

Weight

93.696 lb42.500 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

11.8110 in300.000 mm

D

16.5354 in420.000 mm

F

13.3858 in340.000 mm

B

4.6457 in118.000 mm

r

0.1181 in3.000 mm

s

0.0787 in2.000 mm

da min

12.3228 in313.000 mm

Da max

16.0236 in407.000 mm

ras max

0.0984 in2.500 mm