Double-Row-CRB-Tapered-Bore-NN-Type – NN4952K

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NTNOpen

ITEM NUMBER

NN4952K

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

d260,000 mmBore
D360,000 mmOutside diameter
B100,000 mmWidth
Verified by Cat Son before quotationPart number · clearance · precision
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TECHNICAL DATA

Specifications for NN4952K

Units

Technical Specifications

Type
Cylindrical Roller Bearing
Bore Type
Tapered
Material
Hardened Alloy Steel
Cage Material
High Strength, 2 piece, Machined Brass
Limiting Speed - Oil
1800.0 RPM
Limiting Speed - Grease
1600 RPM
Taper
1:12
Precision
ISO Class 0
Configuration
Two
Oil Hole
w/o Oil Hole
Radial Internal Clearance
CN
Static Load Rating
2070000 N
Dynamic Load Rating
900000 N
Enclosure
Open
Operating Temperature Range
-40 to 120 ºC

Dimensional Specifications

d
260.000 mm
D
360.000 mm
B
100.000 mm
C
100.000 mm
Ew
336.000 mm
r
2.100 mm
da min
271.000 mm
db min
279.000 mm
Da max
339.000 mm
Db min
339.000 mm
Db max
349.000 mm
ras max
2.000 mm
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