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

 N/A Cylindrical Roller Bearing

Bore Type

 N/A Tapered

Material

 N/A Hardened Alloy Steel

Cage Material

 N/A High Strength, 2 piece, Machined Brass

Limiting Speed - Oil

 N/A 4200 rpm

Limiting Speed - Grease

 N/A 3600 rpm

Taper

 N/A 1:12

Precision

 N/A ISO Class 0

Tolerance

 N/A ISO Class 0 (RBEC 1)

Oil Hole

 N/A w/o Oil Hole

Radial Internal Clearance

 N/A CN

Static Load Rating

 N/A 81000 lbf360000 N360.00 kN

Dynamic Load Rating

 N/A 41000 lbf183000 N183.00 kN

Enclosure

 N/A Open

Weight

 N/A 5.776 lb2.620 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 NNU - Dimensions

d

 N/A 4.7244 in120 mm

D

 N/A 6.4961 in165 mm

B

 N/A 1.7717 in45 mm

C

 N/A 1.7717 in45 mm

Fw

 N/A 5.2953 in134.500 mm

r

 N/A 0.0433 in1.100 mm

da min

 N/A 4.9803 in126.500 mm

db min

 N/A 5.1181 in130.000 mm

Da max

 N/A 6.2402 in158.500 mm

Db min

 N/A 6.1614 in156.500 mm

Db max

 N/A 6.2402 in158.500 mm

ras max

 N/A 0.0394 in1 mm