Bearing Distributors, an Applied Company
Bearing Distributors, an Applied Company
930 South Stadium Road
Columbia, SC 29201
Phone: (800) 934-2834
Fax: (803) 256-3824
Email: sales@ibearing.com
Website: www.bearingdistributors.com
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    The rollers in the NN type bearing are guided by the ribs of the inner ring.
Unit of Measure

Technical Specifications

Type

 Cylindrical Roller Bearing

Bore Type

 Tapered

Material

 Hardened Alloy Steel

Cage Material

 High Strength, 2 piece, Machined Brass

Limiting Speed - Oil

 2600 rpm

Limiting Speed - Grease

 2200 rpm

Taper

 1:12

Precision

 ISO Class 0

Configuration

 Two

Oil Hole

 w/o Oil Hole

Radial Internal Clearance

 CN

Static Load Rating

 232000 lbf1030000 N1030.00 kN

Dynamic Load Rating

 107000 lbf475000 N475.00 kN

Enclosure

 Open

Operating Temperature Range

 -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

 7.4803 in190.000 mm

D

 10.2362 in260.000 mm

B

 2.7165 in69 mm

C

 2.7165 in69 mm

Ew

 9.6063 in244.000 mm

r

 0.0787 in2.000 mm

da min

 7.8346 in199.000 mm

db min

 8.0709 in205.000 mm

Da max

 9.6850 in246.000 mm

Db min

 9.6850 in246.000 mm

Db max

 9.8819 in251.000 mm

ras max

 0.0787 in2 mm