Tips on How to Pick Wheel Bearings?

1. Precision Ball Bearings

Our most popular bearings are best suited for applications that require rolling ease, but where side thrust isn't a critical factor. Pre-lubricated and sealed at the factory, they reduce maintenance costs because greasing isn't needed. Double-sealed precision ball bearings feature steel-reinforced rubber seals securely fastened to a groove on the ring of both sides of the bearing.

2. Shielded Stainless Steel Ball Bearings

These bearings prevent rust and improve rollability in our stainless steel and solid urethane wheels. Can be custom spec'd in various sizes and configurations – including flanged, sealed square bores, extended inner raceways, and wide inner raceways with self-locking collars.

3. Precision Tapered Bearings

Recommended for heavy duty and power-towed applications, tapered bearings handle the most severe downward and side forces. Used in various wheels and swivel assemblies, they come in pairs – one on each hub side. Each consists of a cup (hardened and ground outer raceway) and cone (roller assembly). They extend overall wheel hub length by about ¼ of an inch.

4. Precision Tapered Roller Bearing Seals

Available with most casters and wheels that offer 3/4", 1" or 1-1/4" tapered bearings. Commonly features a snap-on steel case with a rubber lip securely clamped between the cone back face and shaft shoulder. The lip prevents dirt and debris from entering the bearing cavity (suffix –DS). For certain 1w" and larger tapered bearings, Hamilton provides a rubber seal and space (suffix –CRS).

5. Straight or Needle Roller Bearings

Traditional anti-friction bearing for industrial equipment. Features a cage-type roller assembly. Outer raceway may be separated or integrated.

 6. Plastic Bearings

For environments detrimental to metal bearings, acetyl resin bearings offer chemical and corrosion resistance. Delrin is standard in certain wheels, as either a sleeve or flange type bearing. Spherical bearings can be custom machined and installed in most other Hamilton wheels. Note: flange type bearings extend actual hub length of wheel by about 3/16 of an inch.

7. Oilless Sleeve Bearings
A sleeve, usually of sintered iron or oil-impregnated bronze, is press-fit into the wheel bore. While these bearings lack the rolling ease that anti-friction bearings provide, they are practical for light loads or applications where re-lubrication is a problem. (A light application of oil or graphite improves rollability and extends bearing life.)

8. Special or Custom Bearings

While standard bearings can handle most applications, some jobs may require bearings with special features, or a custom-engineered solution. For example, alloy bronze and ferrous alloy bearings withstand high heat. Teflon impregnated bronze bearings are self lubricating and roll in harsh environments. Roller clutch bearings allow a wheel to roll in only one direction and square bearings allow wheels to roll on a square shaft.

ARB Bearings Manufacturer Launches Pro Clutch

ARB BEARINGS LTD. has always been keen on customer service and innovation. From last 25 years our products have always added value to our customer's everyday life. We always strive to give our customers the best products with highest quality. We are grateful to our loyal customers who have always motivated us to do better each day and making ARB a strong brand preference in both for domestic and overseas markets. Having a well equipped manufacturing plant with state of the art machinery and backed by a strong in-house research & development wing has enabled continuous product improvements and capability for new product development, both for domestic and overseas markets.

We are really proud and excited to announce our new product development of automotive clutches by the name "PRO CLUTCH"

PRO CLUTCH is a high value product delivering high performance becoming professional's choice. It is a value for money product designed to keep quality & performance conscious customers in mind. Strongly visioning to cover a wide range of Indian and foreign applications for

    - Tractors
    - Medium and Heavy Commercial Vehicles
    - Light Commercial Vehicles
    - Multi-utility Vehicles
    - Passenger Vehicles.

           

WHY USE PRO CLUTCH?
Long life of Clutch
Designed with the help of advanced calculation programms. PRO CLUTCH have more load carrying capacity and minimum friction.

High safety and superior performance under rough conditions
Use of clean materials and controlled heat treatment process give PRO CLUTCH more fatigue strength and toughness.

Quiet running in high speed & low vibration
PRO uses high quality standard to eliminate the noise level and vibration with graded friction material ensuring its precision in microns.

High relaibility and extended service life
Supported by extensive knowledge base, PRO's application engineers will advise you on correct mounting and lubrication methods.

 

PRO clutch used in:

    -Messey Ferguson
    - Eicher
    - John Deere
    - Punjab Tractor (Swaraj)
    - New Holland
    - Sonalika
    - Mahindra & Mahindra
    - HMT
    - Ford/Escorts/Farmtrac
    - Jeeb Series

and Many More...

Contact us

ARB Bearings Limited
H-22, Udyog Nagar
New Delhi - 110041, Delhi, India
Phone: +(91)-(11)-25471274 / 25471255 / 25186300
Fax: +(91)-(11)-25475455 / 25470126
Email: info@arb-bearings.com

Top 5 Bearing Supplier in Roman

1. edx
 The Schaeffler Group has one of the widest product portfolios in the rolling bearing industry, covering nearly all applications. The joint catalogue of standard products includes more than 40,000 products which are supplied to 60 different sectors. Schaeffler also offers a comprehensive range of services for advice, diagnostics, maintenance and mounting rolling bearings and complete systems. Additional success factors are the highest quality, employee orientation, exemplary environmental protection and sustained, long-term and targeted development of the company.

2. rvbearings
R&V Bearings Supplies is currently one of the leading importers and distributors of bearings and associated engineering accessories. We place great emphasis on product quality, service and professionalism since 1990 offering a 24Hr service in the event of a break down


3. bearingsdistributors
Bearings Distributors was established in South Africa in 1953. Initially the company was purely a trading concern and would purchase locally to supply it’s predominantly end-user based customers with various engineering spares. Over the years the markets changed drastically and with this the need for additional products and brands became a necessity to service the requirements of a rapidly growing customer base.

4. ARB-Bearings
ARB Bearings is India’s leading bearing manufacturer company. The company was incorporated in 1990 and its headquartered at Delhi. It is run by professionals with over forty years of experience in the bearing industries.With in a short duration since inception, the company has carved a niche for itself in various segments ranging from automobiles to industrial machinery to household appliances.
http://arb-bearings.com/

5.Bearingtradecentre
We are an eminent entity engaged in manufacturing and supplying heavy duty Deep groove ball bearings . The entire production process of these products are carried out under the supervision of our team members along with advanced machinery. These raw-material and steel are obtained from the most trusted and reliable vendors in the market, therefore these products are non-corrosive.

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Exporters of Taper Roller Bearing in Sofia

1. Nbcbearings.com
NEI was founded in 1946 by the renowned industrialist, Shri B M Birla, under the name of ‘National Bearing Company Limited’. The company commenced manufacturing in 1950 with an annual production of 30,000 bearings in 19 sizes.
http://www.nbcbearings.com

2. Peerbearing.com
PEER Bearing is a manufacturer and global supplier of reliable ball and roller bearing solutions to target industries. Our Target Industries served are: Agricultural, Distribution, Electrical, Fluid, Industrial Transmission, Material Handling and On Highway and Off Highway. We offer a full line of agricultural, radial, mounted unit ball and tapered roller bearings.
http://www.peerbearing.com

 
3. ARB-Bearings.com
ARB Bearings is India’s leading bearing manufacturer company. The company was incorporated in 1990 and its headquartered at Delhi. It is run by professionals with over forty years of experience in the bearing industries.With in a short duration since inception, the company has carved a niche for itself in various segments ranging from automobiles to industrial machinery to household appliances.
http://arb-bearings.com/

4. Grwbearings.com
GRW is the premier developer and manufacturer of ball bearings, assemblies and accessory parts utilizing state of the art equipment and manufacturing processes. We specialize in the production of high precision, small, miniature and instrument bearings as well as spindle bearings in addition to pre-assembled bearing units.
http://grwbearings.com/


5. asbbearings.com
American Sleeve Bearing continually strives to be the best sleeve bearing supplier/manufacturer in the world. ASB has a genuine concern about our customers’ needs and desires. We believe that by establishing a mutually beneficial relationship with our customers we can both continue to grow and prosper.
http://www.asbbearings.com/

6. deinabearing.com
Established in 1999, Tianjin DeINA Bearing Sales Co.,Ltd, is a professional supplier of standand and special bearings and bearing units. Located in Tianjin, we stocks an impressive range of quality bearing products at competitive prices. Our products mainly include ball bearings, roller bearings, combined bearings, bearing units and so on. Besides, we are also one ofAuthorized Distributors of some World-famous Bearing Brand such as SKF, FAG, NSK, Timken and so on.
http://www.deinabearing.com

Trends in bearings 2014

Trends in the design of main shaft and gearbox bearings are driven by unexpected failures in these units. Unplanned main-shaft bearing replacement costs operators up to $450,000 and have an obvious impact on financial performance.

One gearbox service company says certain gearbox models show a particular design weakness: use of a four row, cylindrical bearing with a through hardened race in the planet gears. This is not an optimal bearing configuration for the application.

The company adds that when remanufacturing such a gearbox, it is best to use a case carburized, inner-race bearing with coated rollers. In addition, altering clearance across the individual rows improves load sharing, thereby providing a longer performing bearing. This can also prevent common case-crack failures due to debris that collects in the bottom of a gearbox. It is also necessary to use case carburized and coated bearings in the high speed and intermediate positions. These simple upgrades can greatly enhance the overall performance of the gearbox, leading to significant life extension.
In main-shaft bearings, modular wind-turbine designs commonly use spherical roller bearings (SRB) to support and carry main-shaft loads. Designers often select single SRB designs, one supported by a single main bearing and two torque arms that carry gearbox reaction loads.

At least two factors contribute to early failures. One is high thrust load on a radial SRB bearing. While there is no official maximum limit, a conventional ratio of permissible thrust-to-radial load for two-row spherical roller bearings is between 0.15 and 0.20. The second factor is inadequate lube film generation. Generally, operating conditions for the main shaft’s bearing are not ideal for lubricant-film generation. With a max operating speed of ~20 rpm, the bearing surface speed and lube-film generation may be insufficient to separate the roller-to-race asperities.

After several years of analyses, experimentation, and design work, upgrades are now available in the market for existing turbines, and more sophisticated engineering designs for newer turbine platforms.

A direct interchange to existing fleets is an ideal solution. At least one company offers a wear-resistant SRB that uses engineered surface technology in combination with enhanced surface finishes. Wear resistant bearings increase raceway protection against micropitting by reducing shear stresses and asperity interactions. The engineered surface is a durable, proprietary tungsten carbide, amorphous-hydrocarbon coating. Generally, such coatings are moderately harder than HRc60 steel, 1 to 2-µm thick, and have low friction coefficients when sliding against steel. The engineered surface on the rollers polish and repair raceways damaged during operation. With enhanced surface finishes, the lubricant film increases thickness, helping reduce asperity contacts. The engineered surface also reduces asperity interactions and surface-shear stresses that cause wear. The benefits lead to an increased calculated bearing life and a reduction in rolling torque.

A tapered roller bearing (TRB) main-shaft design with preload characteristics can also improve the powertrain performance. TRBs help ensure system stability and rigidity, load sharing between rows, and predicted roller-to-race interactions. This design allows several configurations.

For one, a widespread single tapered roller bearing offers an economical design that can preload an entire system with two dissimilar TRBs. An upwind and downwind bearing series can then accommodate the application load by adjusting the contact angle and bearing capacity as needed. With a widespread effective center, the bearings are usually more compact.

Another configuration on the large diameter, tapered-roller bearing use a spacer between cone races. This has become an appealing option based on its field performance and ease of assembly. Steep race angles create high-tilting stiffness in a short axial space to counteract applied pitch and yaw moments. Separate bearing components can include seals and grease to simplify handling and installation. A factory set preload ensures a properly mounted setting.

In a third configuration, a single preloaded tapered roller bearing, offers a high load capacity and manages the combination of radial and thrust loads as compared to a single SRB. The single preload ensures load sharing across both bearing rows and tolerates greater system misalignment as compared to the design with the space between cone races.

Reducing Linear Bearing Wear

To get the longest working life out of a linear bearing, keep it clean and well lubricated. This commonsense advice may sound easy enough to follow, yet in the real world of round-the-clock, high-cycle manufacturing operations, bearings do get dirty and dry.

And when either of these conditions happens, linear bearings will wear prematurely. In the worst-case scenarios, contamination and inadequate lubrication can create metal-on-metal contact between the bearing’s rolling elements and raceway. This can cause excessive wear in the form of denting, pitting, or galling.

This warning about contaminants and the importance of lubrication will not come as news to anyone who has designed or worked around industrial machines. When using linear guides on medical, food, packaging, semiconductor, or other sensitive equipment, machine builders often take extraordinary measures to keep the contaminants out and the oil in. They may add expensive bellows to cover the guides, or they may opt for a pricey automatic greasing system.

Yet in their zeal to keep linear motion systems running smoothly, machine builders can overlook less expensive design solutions to contamination and lubrication issues.

Combating contamination
Contamination comes in many forms, some more aggressive than others. Metal chips from machining operations, for example, qualify as one of the biggest offenders from a wear perspective. Silicon dust produced during semiconductor manufacturing can also be tough on linear bearing surfaces. Modern manufacturing processes can throw off a long list of other abrasive, wear-inducing contaminants.

Design Decisions: A Comparison of 3 Different Ball-Bearing Materials

Ball bearings can be used in a variety of applications from medical and aerospace technology to packaging equipment, electronics, office technology, and even high-end yo-yos. Since these components are available in different types of materials, each with its own set of features and benefits, weighing the pros and cons of a specific kind of ball bearing can become an important part of the design process.

Three main types of ball bearings are steel, ceramic, and polymer. While every ball bearing is comprised of four main parts -- an outer race, an inner race, a cage, and balls -- each has its own set of characteristics and benefits.

xiros plastic ball bearings open new fields of application for plastic bearings. The inner and outer races are made from high-performance iglide materials. The corrosion-free balls are made from stainless steel. Glass balls are also available for maximum corrosion resistance.
xiros plastic ball bearings open new fields of application for plastic bearings. The inner and outer races are made from high-performance iglide materials. The corrosion-free balls are made from stainless steel. Glass balls are also available for maximum corrosion resistance.

Steel ball bearings
Partly because they are an older technology, steel ball bearings are a trusted solution for many design engineers. Typically, these types of bearings are comprised of all-steel parts, but are available with different types of steel races and balls, or with a phenolic cage. Steel ball bearings are ideal for robust applications handling extremely high loads and fast rotations per minute (RPMs), specifically when compared to polymer ball bearings, and some feature a radial load capacity of up to 30,000 lb. Another advantage is that steel ball bearings tend to be more precise due to the clearance that can be achieved.

However, steel ball bearings do have some disadvantages. They are heavy, tend to deliver noisy operation, and depending on the grade of steel, lack chemical resistance. They require constant lubrication, which increases the time and cost spent on maintenance. Steel is also susceptible to corrosion in humid or wet environments, and specifically in medical applications, its magnetic properties can cause problems.

In addition, there is such a high number of steel ball bearing manufacturers that prices can greatly vary, ranging from downright inexpensive to very costly. This could be perceived as a pro or a con, but either way, the options can be overwhelming at times.

Ceramic ball bearings
The most common type of ceramic ball bearing is often considered a "hybrid," which indicates the outer race, inner race, and cage of the bearing is comprised of steel, while the balls are made of ceramic. The ceramic material enables the bearing to run faster while maintaining a cooler operational temperature and simultaneously reducing noise and vibration.

Ceramic ball bearings tend to be more corrosion-resistant, more rigid, and lighter weight than most steel ball bearings. Lower coefficients and higher RPMs are also possible, and since they are nonconductive, ceramic ball bearings can be used in electrical applications. In addition, most ceramic balls bearings can operate in temperatures up to 1,800F.