China bosbearing Manufacturer blog

Take care of high speed dental bearing

admin — Fri, 29 Oct 2010 02:14:56 +0000

Excessive heat and vibration can cause premature failure of the dental bearing. This probability is prominent as the ball bearing speed is increased. To ensure smooth and silent running bearings, additional care processing the internal mating surfaces of the ball bearing components, along with the extra care required in manufacturing the components. This assembly method includes a tightened radial play to make sure that every dental ball bearing contains the identical internal properties as the next.

Shaft diameter is an important consideration for high speed dental bearings. The interior components are matched with a specially calibrated amount of radial play to ensure maximum ball bearing life. If the dental bearing is pressed onto the impeller shaft too taut, the radial play can be compromised, resulting in overheating and premature failure of the bearing. If the dental ball bearing is pressed onto the shaft incorrectly, the ball bearing will not run concentrically which can cause premature failure of the high speed dental bearing.

Thrust Ball Bearing

admin — Thu, 26 Aug 2010 01:22:23 +0000

Thrust ball bearings can support high axial forces but must not be subjectedto radial loads, single and double direction designs available.

Features :
Thrust ball bearings consist of two precision chrome steel washers (ring) and a ball complement spaced by bronze retainer. They can be supplied with or without radius ball grooves in the rings. Thrust bearings are used under purely axial loads.Thrust ball bearings can handle loads in the axial direction only. Bearing rings mounted on the shaft are called shaft washers, and those mounted in the housing are called housing washers. Both washers contain raceways for the balls.Thrust ball bearings are available as both single and bi-directional types. The bi-directional thrust bearing incorporates a third washer and an additional set of balls. This center washer is located in the axial direction by a shaft shoulder and sleeve.Care must be taken in handling to prevent damage to the separable rings and ball assemblies.

Applications :
live centers in lathes, lead screws, automotive clutches, kingpin supports, speed reducers

What is Thrust ball bearings

admin — Wed, 25 Aug 2010 01:08:59 +0000

Thrust ball bearings are classified into those with flat seats or aligning seats depending on the shape of the outer ring seat (housing washer). They can sustain axial loads but no radial loads. For Single-Direction Thrust ball Bearings, pressed steel cages and machined brass cages are usually used The cages in Double- Direction Thrust ball bearings are the same as those in Single-Direction Thrust ball bearings of the same diameter series.
Both washers contain grooves for the balls. Thrust ball bearings are of two types: single type which can support axial loads in only one direction and double type that can support bi-directional loads.
The central washer of double type Thrust ball bearing is located in an axial direction by a shaft shoulder and sleeve. Thrust ball bearings are not suitable for high-speed rotation since lubri~ant is expelled by centrifugal force.
Bearings whose housing washer back face is spherical (with a spherical back face or aligning seat washer) are designed with a self-aligning capability and can accommodate the effects of inaccurate mounting.

Ball Bearings and Its Benefits

admin — Tue, 24 Aug 2010 01:23:05 +0000

Ball bearings are utilized in various segments of industries including automobiles, railways, metallurgy, engineering, manufacturing, textile, steel, electric power, mining, precision instrument, sports equipment and many more. It works in specific manner for all the sectors and has extensive functioning that is very eminent for each sector.

With its increasing popularity, it has strengthened their presence in various sectors with its performance and credibility. There are available in a wide range that differs in various respects and serves different requirements of industries.

Quality ball bearings effectively reduce the rotational friction and sustain radial and axial loads. There are many companies in the industry that offers and provides its customers with high quality products but all our products are quality driven and are offered at the most cost effective prices.

The technically skilled and knowledgeable professionals and personnel work extensively to give the most innovative and productive ball bearings. This ensures customer satisfaction and has enabled the company to face all sorts of challenges with equal enthusiasm.

Our engineers, designers work closely with the clients and customers to fulfill their exact needs. If the customer demands, the company also offers customized solutions to cater to their needs and specifications. With its incredible quality and excellent services, Our Company has made its presence felt in the world market and holds a strong position when it comes to bearings.

They are less noisy, have less energy consumption, and have a variation in structure and posses high limiting speed. With so many benefits to its side, ball bearing suppliers are far ahead of their competitors and keep their customers satisfied at any given point of time. The facilities of the company are huge and highly advanced with the best of machinery and equipment installed. With over 40 years of experience, the company has great potentials in meeting any of your bearings needs.

Thrust Ball Bearing

admin — Mon, 23 Aug 2010 00:44:42 +0000

Thrust ball bearings can support high axial forces but must not be subjectedto radial loads, single and double direction designs available.

Features :
Thrust ball bearings consist of two precision chrome steel washers (ring) and a ball complement spaced by bronze retainer. They can be supplied with or without radius ball grooves in the rings. Thrust bearings are used under purely axial loads.Thrust ball bearings can handle loads in the axial direction only. Bearing rings mounted on the shaft are called shaft washers, and those mounted in the housing are called housing washers. Both washers contain raceways for the balls.Thrust ball bearings are available as both single and bi-directional types. The bi-directional thrust bearing incorporates a third washer and an additional set of balls. This center washer is located in the axial direction by a shaft shoulder and sleeve.Care must be taken in handling to prevent damage to the separable rings and ball assemblies.
Applications :
live centers in lathes, lead screws, automotive clutches, kingpin supports, speed reducers

Deep Groove Ball Bearings

admin — Fri, 20 Aug 2010 01:01:53 +0000

Deep Groove Ball Bearings are the most popular of all the ball bearing types because they are available in a wide variety of seal, shield and snap-ring arrangements. The bearing ring grooves are circular arcs made slightly larger than the radius of the ball. The balls make point contact with the raceways (elliptical contact when loaded). The inner ring shoulders are of equal height (as the outer ring shoulders).

Deep Groove ball bearings can sustain radial, axial, or composite loads and because of simple design, this bearing type can be produced to provide both high-running accuracy and high-speed operation. Consequently, they are available in many executions and sizes.

Deep groove ball bearing have various types in structure, beside open type bearings, shield or seals at both side can also be provided

Deep groove ball bearings are non-separable and require little attention or maintenance in service, capable of operating at high speeds and are widely used radial bearings. The inner and outer ring of single row deep groove ball bearings have a deep groove raceway, the bearings are mainly used to carry radial loads and a part of axial loads in two directions. This kind of bearing can carry much heavy axial loads after the increase of radial clearance, thus, it can take the place of high speed angular contact ball bearings.

Ultra High-Speed Dental Bearing Design

admin — Thu, 19 Aug 2010 01:53:39 +0000

PKB manufactures ultra high-speed dental bearings at our quality certified factory .Bearings for high speed dental handpiece applications offer long life at speeds approaching 500K RPM and will withstand repeated autoclaving. All high-speed instrument bearings for dental and surgical applications are manufactured from 440C stainless steel, the preferred choice for all our instrument bearings. Its corrosion resistance allows for repeated sterilizing. Its highly finished, honed surface provides a long lasting structure for the 440C or Silicon Nitride (ceramic) balls, which allows the bearing to rotate smoothly at the high speeds seen in dental handpieces. Food safe oils and greases designed for high speeds and temperatures play a key role in the performance of any high-speed dental bearing used in a dental handpiece.
For high speed applications, bearing noise, vibration, and life are all important factors which are heavily affected by both the bearing design and the intricate details of the bearing production process. To meet the unique challenges encountered by ultra high-speed dental bearings in speeds approaching 500,000 RPM, the PKB engineering team designates a specific set of additives in our popular heat and moisture resistant Phenolic and Torlon (polyamide-imide) retainers.
High-speed dental bearings, that run at speeds approaching 500K RPM, require special consideration. Excessive heat and vibration can cause premature bearing failure of the dental bearing. This risk is elevated as the ball bearing speed is increased. To ensure smooth and quiet running bearings, PKB performs special processing on the internal mating surfaces of the ball bearing components. In addition to the extra care involved in manufacturing the components, the assembly process includes a tightened radial play to ensure that each high-speed dental bearing contains the same internal geometries as the next. Bores can be specially coded to ensure a consistent and reliable bearing fit on any dental handpiece shaft.
Shaft diameter is an important consideration for high-speed dental bearings. The internal components are matched with a specifically calibrated amount of radial play to ensure maximum ball bearing life. If the dental ball bearing is pressed onto the impeller shaft too tightly, the radial play can be compromised and even eliminated, resulting is overheating and premature failure of the high-speed dental bearing. If the dental ball bearing is pressed onto the shaft askew
In addition to selecting the right high-speed dental bearing retainer for your miniature and instrument bearing application, dissimilar materials can prevent component welding and extend the life of the ultra high-speed dental bearing in a variety of applications. To this end, we offer standard 400C stainless steel or optional ceramic balls in our bearing assemblies.PKB ultra high speed bearings are available with up to ABEC 9 tolerances with an optional flanged outer ring.

Ball Bearing

admin — Tue, 17 Aug 2010 09:25:05 +0000

Deep Groove Ball Bearings are non-separable and require little attention or maintenance service, capable of operating at high speeds and are widely used radial bearings. The inner and outer ring of single row deep groove ball bearings have a deep groove raceway, the bearings are mainly used to carry radial loads and a part of axial loads in two different directions. This kind of bearing can carry much heavy axial loads after the increase of radial clearance, thus, it can take the place of high speed angular contact ball bearings.
Deep groove ball bearings have various types in structure, beside open type bearings, shield or seals at both side can also be provided.
We always insist on importing only the best ST alternators available containing good quality bearings, however we are well aware that over time any moving part will be subject to wear.
If you find you need to replace your bearings in your ST alternator these are ideally suited for the job. These bearings are of a very high quality and sourced from a company .
We have two types available, the standard open type for you to maintain and pack with grease as and when necessary or sealed for life bearings which you never have to repack with grease.
We can also assist with other bearing requirements, please do not hesitate to contact us if you require a different size

Double Row Deep Groove Ball Bearing

admin — Mon, 16 Aug 2010 00:48:09 +0000

Double row deep groove ball bearings feature higher load ratings than single row bearings, but are very sensitive to misalignments. This series have the latest design (suffixed ‘B’) without filling slots.Fitted with polyamide cages (suffixed ‘TN’) as standard, pressed steel cages are also available. However, somedouble row deep groove ball bearings may have filling slots that limit the ability to support thrust loads.

Features :

1) Deep groove ball bearings mainly take radial load as well as take moderate axial load

2) With less coefficient of friction, high limiting speed, large size range and various structure

3) They are suitable of precision instruments, low noise motors, automobiles, motorcycles, and other common machinery
4) A widely used type of bearings in machinery industry

Applications :
electric motors, automotive applications, home appliances, industrial equipment.

Ball Bearings

admin — Thu, 12 Aug 2010 06:15:05 +0000

Ball bearings consist of two hardened metal rings separated by a set number of perfectly spherical steel balls spaced equilaterally with a bearing cage. The balls run along concave grooves set into the rings placed one inside the other. Ball bearings can be found in everything from the washing machines to computers.

The ball bearing system requires a thin film of lubricant for high -speed applicationsto reduce friction and facilitate heat dissipation, corrosion prevention, and long bearing life. The raceways and the balls both have a fine surface finish and with proper lubrication less noise, less torque and long life, all can be achieved. Ball bearings require one time lubrication that happens during the manufacture.

Ball bearings may fail due to improper lubrication, excessive temperature or if the bearing or the raceway has been damaged.