NNTR Track Roller Bearing-ZMS-1
NNTR Track Roller Bearing-ZMS-2
NNTR Track Roller bearing-ZMS-3

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NNTR Bearing

NNTR bearings are heavy-duty, yoke-type track rollers featuring a thick-walled outer ring and a full complement of cylindrical rollers. Most models come with efficient lamellar seals on both sides(suffix .2ZL) and relubrication holes, ensuring long service life even in contaminated environments.

Unlike standard bearings, NNTR track rollers are specifically designed to run directly on mating tracks, cams, or flat surfaces.

We supply both premium brands (SKF, INA) and high-quality Chinese alternatives with competitive pricing and reliable performance.

Popular modals like:

NNTR 50×130×65.2ZL
NNTR 60×150×75.2ZL
NNTR 70×180×85.2ZL
NNTR 80×200×90.2ZL
NNTR 90×220×100.2ZL
NNTR 100×240×105.2ZL
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Item

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01

Key Features

Maximum Radial Load Capacity: The full-complement cylindrical roller in double rows design allows these bearings to support incredibly heavy static and dynamic loads.

Thick-Walled Outer Ring: Prevents deformation under heavy stress and shock loads.

Optimized Outer Profile: Available with a crowned (spherical) outer ring surface to prevent edge-loading and accommodate slight misalignments relative to the track.

Axial Guidance: Equipped with thrust rings and flanges to accommodate moderate axial loads and guide the outer ring securely.

Optimized Lubrication: Features lubrication holes in the inner ring for easy relubrication, extending the service life of the bearing.

Sealed for Protection: Available with lip seals to keep contaminants out and retain grease, even in harsh environments.

02

Supply Advantages

Standard dimensions of Chinese-made NNTR bearings are interchangeable with SKF and INA versions. Quality and longevity can vary — we offer both premium and economical options.

03

Industrial Applications

Because of their high load-carrying capacity and rugged design, NNTR bearings are essential components in heavy industries.

Common applications include:

> Heavy material handling and conveyor systems
> Steel mill and metal processing equipment
> Automotive assembly lines
> Machine tool changers
> Packaging and automation machinery
> Mining and construction equipment

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