KOYO Bearing NN3048

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Specifications of KOYO Bearing NN3048

KOYO Bearing NN3048

Specifications
(Boundary dimensions …etc)

d
240 mm
D
360 mm
B
92 mm
r(min.)
3 mm
Fw
– mm
Ew
330 mm
Basic load ratings : Cr
864 kN
Basic load ratings : C0r
1590 kN
Fatigue load limit : Cu
184 kN
Limiting speeds(Grease lub.)
1400 min-1
Limiting speeds(Oil lub.)
1700 min-1

Mounting dimensions

da(min.)
253 mm
da(max.)
– mm
db(min.)
– mm
Da(max.)
347 mm
da(min.)
333 mm
ra(max.)
2.5 mm

Refer.

(Refer.)Mass
32.8 kg

Product description of KOYO Bearing NN3048

KOYO Bearing NN3048, Cylindrical roller bearings Single-row NN,Cylindrical roller bearings have line contact between the rollers and raceway, therefore radial load capability is high, making this bearing superior in regards to its ability to withstand heavy loads and impact loads. Moreover, mounting and removing is easy due to the inner ring and outer ring being separable.

The utility model relates to a bearing, in particular to a single-row cylindrical roller bearing which comprises a single-row outer ring and a single-row inner ring. A plurality of rollers are positioned between the inner ring and the outer ring, retainers are positioned between the rollers, the outer ring is provided with double flanges, and the inner ring is provided with a single flange. One end of the inner ring, which is not provided with a flange, is provided with a flat check ring. Practical application shows that when the single-row cylindrical roller bearing is applied to a sludge pump, the service life of the single-row cylindrical roller bearing is several times longer that an original 62938 bearing. Thus, auxiliary time for replacing the bearing is greatly reduced, cost of spare parts is saved, and production requirements of customers are met.

KOYO Bearing NN3048, Cylindrical roller bearings Single-row NN, Cylindrical roller bearings feature high radial load capacity because the roller and raceway are in linear contact. These bearings are suitable for applications that involve heavy radial and impact loading. They are also appropriate or high-speed applications in that they can be machined very accurately due to their structure. Having a separable inner ring or outer ring, these bearings can be mounted and dismounted easily.

●Double-row cylindrical roller bearings come in two types :
with a cylindrical bone, and with a tapered bore. As or those with a tapered bore, the specified amount of clear. and can be obtained by adjusting the press-in distance. Some bearings have lubrication holes and lubrication grooves on the outer ring. They are denied by supple. Elementary code "W".
●These bearings can accommodate high radial loads, and are often used on machine tool spindles.

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