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Large diameter bearing Cylindrical roller bearings NN3060
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Large diameter bearing Cylindrical roller bearings NN3060

ID: 300 mm OD: 460 mm Height: 118 mm
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Large diameter bearing Cylindrical roller bearings NN3060

Large Double row Cylindrical roller bearings NN3060-AS-K-M-SP are separated packed as the above photos showing. They areprecision bearings for machine tools. They allow radially rigid, high precision bearing arrangements and are principally used to give radial support for main spindles.

Technical data of NN3060-AS-K-M-SP

ID: 300 mm

OD: 460 mm

Height: 118 mm

Weight: 68.5 kg

Basic dynamic load rating: 1270 kN

Basic static load rating: 2400 kN

fatigue load limit: 290 kN

Limiting speed for grease lub.: 1600 rpm

Limiting speed for oil lub.: 1900 rpm

Solid brass cages

With tapered bore, taper 1:12

Made in Germany

NN Series:

The bearing only have rib on the inner ring. The component of inner ring and rollers can separately assembled with the outer ring. The axial displacement between axis and shell is not astrict, thus the bearing could not take the axial load. But, comparing with the single row cylindrical roller bearing in the same dimension, the double row bearing is capable to carry large radial load. The bearing is especially suitable for supporting machine tool spindles.

NN…K Series:

The bearing’s structure is similar with NN series bearing, only the inner hole of the bearing is conical. Which is good for easy adjustment of the bearing, and convenient for assembly and disassembly. The bearing is popular used for machine tool spindles, to be installed in the cone axis,to adjust the radial clearance by the indentation of the inner ring.

NNU Series, NNU ... K Series:

The bearing only have rib on the outer ring. There are both cylindric hole and conical hole. The axial displacement between axis and shell is not astrict, thus the bearing could not take the axial load. But, comparing with the single row cylindrical roller bearing in the same dimension, the double row bearing is capable to carry large radial load.

NNCF Series:

There are 3 rib on the inner ring and 1 rib on the outer ring. The bearing is allowed to one direction axial displacement.

NNCL Series:

There are 3 rib on the inner ring and no rib on the outer ring. It is un-separated bearing.

Dimension Range:

Inner Ring Diameter Range:80mm-1500mm Outer Ring Diameter Range:100mm-1500mm

Tolerance:

capable to produce bearings with the accuracy P5, P4, P2, and special accuracy for spindle bearings, such as: SP, UP.

Radial Clearance:

The clearance C 1 is usually used for standard double row cylindrical roller bearing. we can also supply our customer cylindrical hole radial tolerance of C2, C3, and C2 for conical hole.

CONTACT US

 Add : Room 25A23, MingZhu Commercial Building, 88th JingYi Road, JINAN, CHINA
 Phone : 0086 531 85066228
E-mail :SKFbearing@chinakmbea
ring.com

Skype : qgbearing
WhatsApp: 008618678825008 
Jinan kaiming Bearing Co., Ltd 

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CONTACT US

    Add : Room 25A23, MingZhu Commercial Building, 88th JingYi Road, JINAN, CHINA
    Phone :0086 531 85066228
    E-mail :SKFbearing@chinakmbearing.com
   Skype : qgbearing
   WhatsApp: 0086 18678825008 
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