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    The rollers in the NN type bearing are guided by the ribs of the inner ring.
Unit of Measure

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Technical Specifications

Type

 N/A Cylindrical Roller Bearing

Bore Type

 N/A Tapered

Material

 N/A Hardened Alloy Steel

Cage Material

 N/A Nylon

Limiting Speed - Oil

 N/A 3100 RPM

Limiting Speed - Grease

 N/A 2600 RPM

Taper

 N/A 1:12

Precision

 N/A Special Precision

Configuration

 N/A Two

Oil Hole

 N/A w/o Oil Hole

Radial Internal Clearance

 N/A C1NA

Static Load Rating

 N/A 132000 lbf585000 N585.00 kN

Dynamic Load Rating

 N/A 75500 lbf335000 N335.00 kN

Enclosure

 N/A Open

Weight

 N/A 15.318 lb6.948 kg

Operating Temperature Range

 N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NN - Dimensions

d

 N/A 5.9055 in150.000 mm

D

 N/A 8.8583 in225.000 mm

B

 N/A 2.2047 in56.000 mm

C

 N/A 2.2047 in56.000 mm

Ew

 N/A 8.1102 in206.000 mm

r

 N/A 0.0827 in2.100 mm

da min

 N/A 6.3386 in161 mm

db min

 N/A 6.5354 in166.000 mm

Da max

 N/A 8.1890 in208.000 mm

Db min

 N/A 8.1890 in208.000 mm

Db max

 N/A 8.4252 in214.000 mm

ras max

 N/A 0.0787 in2 mm