Overview

NNU49..-S-K-M-SP super precision double row cylindrical roller bearings; It is with 1:12 tapered bore, separable, Non-locating bearings; Outer ring with three rigid ribs, inner ring without ribs, lubrication groove and lubrication holes in the outer ring, brass cage; Tolerance class SP.

Bore diameter-320 mm; Outside diameter-440 mm; Width-118 mm; Mass-51.41 kg; Cr=1070 kN; C0r=2550 kN; Limiting speed for grease lubrication is 1670 1/min; Limiting speed for oil lubrication is 1960 1/min.

The same type with different suffixes, NNU 4964 BK/SPW33; NNU4964; NNU4964-S-M-P5-C3; NNU4964MAW33 are ready in stock for your machine application needs.

Specifications

NNU4964-S-K-M-SP Drawing

Dimensions &Technical Datasheets
Part NO.	NNU4964-S-K-M-SP-Super Precision Double-Row Cylindrical Roller Bearings
Brand	FAG made in Germany, and SDVV brand made in China
Main Dimensions	320x440x118 mm
d	320 mm
D	440 mm
B	118 mm
Limiting speed for grease lubrication	1670 1/min
Limiting speed for oil lubrication	1960 1/min
da	356 mm
Da	409 mm
r1 min	3 mm
Cr	1070 kN
C0r	2550 kN
M	51.41 kg

Bearing Application

NNU4964-S-K-M-SP bearings are widely used in various fields, including but not limited to:

Industrial equipment: lasting machines, smelting equipment, vacuum pumps, chillers, cutting machines, soldering irons, labeling machines, complete sets of chemical equipment, plastic weaving machines, machine tool holders, spiral plate heat exchangers, offset printing machines, rotary pumps, burners, etc.
Commercial and specialized equipment: commercial specialized equipment, canned motor pumps, gantry milling machines, supermarket equipment, air compressors, financial specialized equipment, DC motors, cylindrical grinding machines, hotel equipment, rubber machinery, pressure testing pumps, CNC grinding machines, etc.
Other fields: energy-saving welding machines, industrial dryers, metallurgy, excavators, dental drills, etc.