Industrial Bearings

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Bearings for Sanitary Environments, employ food-grade lubricant as NSF, are suitable for the uses that need more safety such as food processing machinery.

NSF (National Sanitation Foundation International): U.S. non-profit third party accreditation organization that is internationaly recognized in the field of public safety and health.

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We are dealing in a wide range of Ceiling Fan Bearing and believes in providing good quality products to our customers. The bearing is made with the latest technology following all sets of industrial standards.

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Matching up with the exact requirements of customers, we are involved in presenting a wide array of Needle Bearing.

Features:

• Various shape
• Rugged design
• Reliable operation

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Paper Making Machines bearings operating under high-temperature conditions are vulnerable to problems such as fracturing of the inner ring, which can result in work stoppages. NSK bearings, with their long service life, superior resistance to inner ring fractures, outstanding hardness, and excellent dimensional stability under high temperatures, produce solutions for a host of paper mill applications and operating environments.

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SKF high temperature bearings and bearing units are designed to deliver increased reliability, reduced complexity and decreased environmental impact in operating temperatures up to 350 °C (660 °F). Because SKF high temperature bearings correspond to the ISO dimensions of grease-lubricated bearings, production efficiencies and cost savings can be realized with a simple change to the SKF bearing solution.

The environmental benefits of SKF high temperature bearings are so significant in many applications that they are included in the "SKF Beyond Zero" product portfolio.

Bearing Benefits and Features:

• Reduced total operating cost: The bearings are designed to maintain the radial clearance needed for high temperature operation and so will not seize, even when they cool rapidly, and therefore provide a long service life.
• Virtually maintenance-free operation: The bearings are lubricated for life and do not need relubrication. Only variant VA201 without shields requires relubrication.
• Excellent performance under severe conditions:
  • hot conditions
  • dry environments
  • low rotational speeds
• Reduced environmental impact
• Reduced machine design complexity

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Bearings are provided with ample lubrication for extended periods from oil seeping with a polyolefin resin for excellent performance in water and dust contaminated environments.
These rolling bearings are provided with self-lubricating molded oil, which provides ample lubrication from oil seeping from a polyolefin resin These bearings provide excellent performance in dust-contaminated environments. A stainless steel series of this bearing is also available for environments where there is heavy exposure to water contamination.

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Bearings for iron and steel works operate under a variety of harsh conditions, including high temperatures, high speed or super low speed operation, as well as environments contaminated with water and debris. NSK products support the stable operation of equipment under the toughest conditions.

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Bearings for vacuum environments are basic products of the NSK SPACEA Series for special environments, which also includes bearings suitable for operating environments such as corrosive, clean, and high-temperature environments, and non-magnetic requirement.

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SKF bearings with Solid Oil are designed for use in applications where high levels of moisture and incidental contact with water and other contaminants are real issues. Bearings with Solid Oil are lubricated for the life of the bearing and cannot be relubricated.

Solid Oil:

• Is an oil saturated, polymer material
• Moulded into the bearing, forming very narrow gaps between the rolling elements, raceways and cage(s), enabling the bearing to rotate freely
• Having a porous structure, with millions of micro-pores that retain the lubricating oil by surface tension
• Virtually fills all of the free space in the bearing
• Releases oil into the narrow gaps, during operation, providing effective minimum quantity lubrication

Bearing Features:

Long service life:

• An increase in operating temperature pushes the oil toward the surface of the polymer material, supporting consistent lubricant supply. During shutdown, any excess oil is reabsorbed back into the polymer material.

 

Extended lubricant life:

• With Solid Oil bearings, a large amount of oil is available (two to four times more compared to conventional grease fill).
• The Solid Oil polymer structure eliminates lubricant churning.
• Solid Oil is a high-quality synthetic oil that resists oxidation.

 

Resists washout:

• Solid Oil cannot be washed out and virtually fills all free space, limiting the amount of wet contamination that can enter the bearing.

• Water cannot mix with the oil or Solid Oil polymer.

 

Virtually eliminates lubricant leakage:

• Solid Oil retains oil in the bearing.
• Integral bearing seals further increase the oil retention.

 

Protects against the ingress of contaminants:

• Close osculation between Solid Oil and the rolling elements and raceways significantly reduces the ingress of contaminants.
• Solid Oil provides additional support for integral bearing seals.

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Hybrid bearings have rings made of bearing steel and rolling elements made of bearing grade silicon nitride (Si₃N₄), which make the bearings electrically insulating.

Bearing Features:

Silicon nitride rolling elements can extend bearing service life by offering enhanced bearing performance, even under difficult operating conditions. When compared to same-sized bearings with steel rolling elements, the benefits of hybrid bearings include:

• Protection from electric current damage: Hybrid bearings are non-conductive and therefore suitable for applications such as AC and DC motors and generators, where electric currents are present.
• Higher speed capability: The density of a silicon nitride rolling element is 60% lower than a same-sized rolling element made of bearing steel. Lower weight and inertia translates into higher speed capability and superior behaviour during rapid starts and stops.
• Long service life: The lower frictional heat generated in hybrid bearings, especially at high speeds, contributes to extended bearing service life and extended relubrication intervals.
• High wear-resistance: Silicon nitride rolling elements have a higher degree of hardness making hybrid bearings suitable under difficult conditions and contaminated environments.
• High bearing stiffness: With a high modulus of elasticity, hybrid bearings offer increased bearing stiffness.
• Reduced risk of smearing: Even under inadequate lubrication conditions, such as high speeds and rapid accelerations, or where there is an insufficient hydrodynamic film, the risk of smearing is reduced between silicon nitride and steel surfaces. For conditions where κ < 1, it is common to apply κ = 1 for hybrid bearing life calculations.
• Reduced risk of false brinelling: When subjected to vibration, hybrid bearings are significantly less susceptible to false brinelling (formation of shallow depressions in the raceways) between the silicon nitride and steel surfaces.
• Less sensitivity to temperature gradients: Silicon nitride rolling elements have a lower coefficient of thermal expansion, which means they are more stable over temperature gradients within the bearing and provide more accurate preload/clearance control.

 

Assortment:
The standard assortment of SKF hybrid bearings comprises popular sizes for electric motors and generators. It includes:

• Single row deep groove ball bearings
• Basic design
• Sealed design
• XL hybrid design
• Single row cylindrical roller bearings

 

Hybrid bearings provided in this section constitute the basic SKF assortment and are only part of the total assortment. Other hybrid bearings include:

• Hybrid super-precision bearings → Super-precision bearings
• Hybrid super-precision angular contact ball bearings
• Hybrid super-precision cylindrical roller bearings
• Hybrid super-precision angular contact thrust ball bearings, single and double direction
• Hybrid angular contact ball bearings
• Hybrid stainless steel deep groove ball bearings
• Bearing units incorporating hybrid bearings
• For availability and detailed information, contact SKF.

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Electric motors, generators and associated equipment are at risk when an electric current passes through their bearings. This can damage the contact surfaces of rolling elements and raceways in the bearings (electrical erosion) and rapidly degrade the grease. An additional risk in electric motors and generators comes from high frequency currents caused by the inherent stray capacitance. The risk of damage increases where the application uses a frequency converter.

Insocoat Bearings:

• Are designed to prevent electric current from passing through the bearing
• Have the external surfaces of either their inner or outer ring coated with an insulating aluminium oxide layer, by applying a sophisticated plasma-spray process for an outstanding quality finish
• Are a very cost-effective solution compared with other insulation methods

 
Bearing Features:

• Protection against electrical erosion: With insulating properties integrated into the bearing, INSOCOAT bearings can improve reliability and increase machine uptime by virtually eliminating the problem of electrical erosion.
• High electrical resistance: The aluminium oxide coating provides a minimum electrical resistance of 200 MΩ and can withstand voltages up to 3 000 V DC.
• Consistent electrical performance: Plasma-spray coatings are normally hygroscopic and, therefore, vulnerable to penetration caused by condensation. To protect against this effect, INSOCOAT bearings are treated with a unique sealant.

 

Assortment:

The standard assortment of INSOCOAT bearings listed here constitutes the most commonly used sizes and variants of:

• Single row deep groove ball bearings.
• Single row cylindrical roller bearings.

For bearing types and sizes not listed in the product tables (→Deep groove ball bearings, Cylindrical roller bearings), contact SKF.

For applications where smaller bearings than those listed are needed, SKF recommends using SKF Hybrid bearings.

 

In addition to the standard assortment, SKF can supply special INSOCOAT bearings and bearing units with complex ring geometries, such as:

• Four-point contact ball bearings.
• Flanged tapered roller bearings. 
• Tapered roller bearing units (TBU). 
• Traction motor bearing units.

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SKF sensor bearing units are used to monitor accurately the status of rotating or linear components and are:

• Compact
• Robust and reliable
• Simple and ready-to-mount

Sensor-integrated solutions engineered by SKF have been well proven in a variety of industrial and automotive applications, such as electric motors, electric vehicles, road rollers, tractors, forklifts and conveyors. Typical uses include:

• Motor management
• Steering
• Speed and position sensing
• Measurement of angular position

For additional information about SKF sensor bearing units, contact your local SKF representative.

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The SKF Bearing provided by us can be installed easily and requires negligible maintenance. This bearing is acclaimed for its trendy and stylish design. It is highly non corrosive.

Features:

•   Looks trendy
•   Stylish design
•   Higher corrosion resistance
•   Unmatched usage convenience
•   No risk of breakage
•   Lighter weight

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Screw compressors are used in environments where they are exposed to such chemicals as compressor oil, refrigerants, and ammonia gas. Consequently, bearings for screw compressors must be highly resistant to oil and heat.
NSK bearings for screw compressors feature polyphenylene sulphide (L-PPS) plastic cages that offer superior chemical resistance and deliver high performance regardless of the operating environment.

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The Industrial Bearing provided by us is convenient to install. This bearing is available to clients in different specifications and is acclaimed for its unmatched resistance to corrosion.

Features:

Flawless finish

Higher corrosion resistance

Easier installation

Smaller bearing size

Sturdy design

Glossy shine

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The Metal Bearing provided by us is available to clients in different specifications of shape and size at budget friendly prices. This hook is convenient to install and use.

Features:

• Compact size
• Corrosion resistance
• Durable design
• Easy to install
• Convenient to use
• Unbreakable

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This page provides overviews of the available bearing types, their designs, designations and characteristics. It also includes references to the relevant product sections with detailed information and to product tables.

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RHP bearing

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