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NTN Mounted Bearing Units

NTN Mounted Bearing Units
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NTN offer a diverse series of mounted bearing units to fit a variety of applications, including mining, construction, and food processing.

NTN Stainless Steel Series Bearing Units
NTN Plastic Housing Series Bearing Units
NTN Bearing Units with Ductile Cast Iron Housing
NTN Bearing Units Steel Series
NTN Triple-Sealed Bearings for Bearing Units

NTN Stainless Steel Series Bearing Units

NTN Stainless Steel Series Bearing Units have both stainless bearings and stainless steel housing. This new series from NTN provides corrosion resistance and longer lubrication life in a clean unit with low torque characteristics.

NTN Stainless Steel Mounted Bearing UnitNTN bearing units in the stainless series feature ball bearings inserted into housings made of stainless that provide superior resistance to corrosion as compared to standard series cast iron units. This series is especially useful in a wide variety of applications because of the rust free properties of the housing.

The solid grease lubricating the bearing has been heathardened and is a mixture of lubricant and ultra high moleculer weight polyethylene. The solid grease reduces leakage, prolonging lubricant life especially when used under conditions of vibration or centrifugal force. Also, this grease will not homogenize when water penetrates into the bearing raceway.

The solid grease lubricant in the ball bearing, solely developed by NTN, reduces leakage from the bearing, significantly reducing environmental pollution.

The standard solid grease type for these ball bearing units is spot-pack which places the lubricant on the bearing cage. Torque consumption capabilities of spot-pack bearings is low due to reduced whip resistance in comparison to standard grease lubricated ball bearings.

The basic dimensions are the same as current NTN units and are also compatible with units from other manufacturers ISO standard.

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NTN Plastic Housing Series Bearing Units

NTN Thermo Plastic Mounted Bearing UnitNTN Plastic Housing Series Bearing Units features stainless bearings and glass fiber reinforced plastic housing. The NTN Plastic Housing Series Bearing Units ensures a clean operating environment.

NTN bearing units in the plastic series feature ball bearings inserted into housings made of plastics that provide superior resistance to corrosion as compared to standard series cast iron units. This series is especially useful in a wide variety of applications because of the nonmagnetic and rust free properties of the housing.

The solid grease lubricant in the ball bearing, solely developed by NTN, reduces leakage from the bearing, significantly reducing environmental pollution. Also, the housing will not stain, nor is there paint to peel and contaminate the environment.

The standard solid grease type for these ball bearing units is spot-pack which places the lubricant on the bearing cage. Torque consumption capabilities of spot-pack bearings is low due to reduced whip resistance in comparison to standard grease lubricated ball bearings.

Weight is reduced more than 30% to 60% over standard series units. The glass filled polyester housing not only reduces corrosion but offers better water resistance.

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NTN Bearing Units with Ductile Cast Iron Housing

NTN Ductile Cast Iron Mounted Bearing UnitNTN Bearing Units with Ductile Cast Iron Housing feature a spheroidal graphite cast iron housing which helps with design optimization.

Housing weight of the NTN Bearing Units with Ductile Cast Iron Housing is reduced by 40%, with a compact design When compared with the standard NTN housing the ductile series housing enjoys a 40% weight reduction. Plus, the housing is useful for a size reduction in machine equipment. This is achieved by minimizing as much as possible non-critical dimensions of the housing allowing the housing to be placed in tight locations.

Spheroidal graphite cast iron is used for the bearing housing in NTN Bearing Units with Ductile Cast Iron Housing. It is designed to have high strength with fine material structure and uniformed thickness. The average fracture strength for the series is increased by approximately 30% when compared with NTN’s standard product (FC200,
Gray cast iron).

NTN Bearing Units with Ductile Cast Iron Housing are available in two lubrication configurations: relubricatable type and maintenance free type. The relubricatable type is suitable for high temperature and high speed application, and the maintenance free type is optimized for a long period under normal using conditions without re-greasing.

The NTN Bearing Units with Ductile Cast Iron Housing series is interchangeable with NTN standard product and other domestic suppliers’ product. This is achieved by keeping the dimensions related to mounting the same as for standard product made according to JIS B 1559 (Housings for rolling bearing units).

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NTN Bearing Units Steel Series

NTN Steel Series Mounted Bearing UnitsNTN Bearing Units Steel Series features a rolled steel housing for general structures which ensures a safer design.

Products in the NTN Bearing Units Steel Series are made of precision gas cut rolled steel. NTN steel housings offer superior strength characteristics when compared to cast iron and cast steel housings.

The rolled steel microstructure is more consistent than cast iron or cast steel, reducing the risk of housing fracture under severe conditions.

Rolled steel housing dimensions of the NTN Bearing Units Steel Series are consistent with cast units, allowing them to be interchanged with NTN standard housings and other manufacturers ISO standard.

NTN rolled steel housings provide superior strength to cast steel and cast iron. Their ability to resist impact loads makes them suitable for applications involving heavy loads and vibration. Possible applications for NTN rolled steel housings include but are not limited to conveyors, trucks and overhead cranes at steel mills, mining machinery and pollution control equipment.

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NTN Triple-Sealed Bearings for Bearing Units

NTN Triple Sealed Bearings for Bearing UnitsThese reliable triple-sealed bearings are dustproof and waterproof.
They ensure a longer bearing life even when exposed to heavy airborne dust and splashes of foul water.

The construction of NTN Triple-Sealed Bearings for Bearing Units features a triple seal, balled setscrew, sealing device, sealed plate, and triple-lip. These features provide easy mounting of the bearing on the shaft, better sealing performance and prevention of contamination, plus enhanced corrosion resistance and pressure resistance.

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