Item # NNU4926K, Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NNU On NTN Bearing Corp. of America

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

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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 High Strength, 2 piece, Machined Brass
Limiting Speed - Oil	N/A 3900 RPM
Limiting Speed - Grease	N/A 3300 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 99000 lbf440000 N440.00 kN
Dynamic Load Rating	N/A 49500 lbf220000 N220.00 kN
Enclosure	N/A Open
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Loading zoom Open Image Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NNU - Dimensions
d	N/A 5.1181 in130.000 mm
D	N/A 7.0866 in180.000 mm
B	N/A 1.9685 in50.000 mm
C	N/A 1.9685 in50.000 mm
Fw	N/A 5.7480 in146.000 mm
r	N/A 0.0591 in1.500 mm
da min	N/A 5.4331 in138.000 mm
db min	N/A 5.5906 in142.000 mm
Da max	N/A 6.7717 in172.000 mm
Db min	N/A 6.6929 in170.000 mm
Db max	N/A 6.7717 in172.000 mm
ras max	N/A 0.0591 in1.500 mm