Suchfeld
Contact

Opening hours:
Monday to friday: 7:00 - 17:00 o'clock
Competent advice:
Tel. 00492932/9771-23
E-Mail:
info@quality-bearings.com
You can ask in English, Russian, Italian, Spanish, Polish, French ...

Quality Bearings

A very large selection of ball bearings from leading premium manufacturers can be found at Quality-Bearings.com. In our online store we offer top brands and quality at reasonable prices. Whether for agricultural technology, industrial plants, mechanical engineering or shipping, we offer ball bearings for professionals and this since 1973. Thanks to our stock we can handle urgent ball bearing shipments fast and uncomplicated by express shipping on the same day. In addition, you can order all ball bearings from us without a minimum order value. Quality-Bearings.com is thus the perfect online store for agricultural businesses, workshops, industry and service companies. With us you can shorten delivery times and machine tool downtimes! Customer satisfaction and fast shipping within 24 h are our top priority. We offer ball bearings from FAG, SKF, INA, SWC, SLF and NSK. Buy radial deep groove ball bearings, bearings for high speeds and other technical products for your workshop, production or service in express mode directly from your German dealer. We have more than 40 years of experience in the field of drive technology. Our employees are trained personnel who will be happy to help you with your problems. We would be pleased to submit you an individual offer for non-listed ball bearings or higher quantities.

Spindle Bearings
Spindle bearings are single row angular contact ball bearings which support thrust loads in one direction. and are often used in machine tool spindles. At very high speeds, spindle bearings can simultaneously. absorb high radial forces and single direction axial forces. Spindle bearings have one open shoulder on. Spindle bearings are single-row angular contact ball bearings consisting of solid outer and inner rings and ball and cage assemblies with solid window cages. They are open and sealed. The bearings have tight tolerances and cannot be dismantled. They are particularly suitable for bearings with the highest demands on guidance accuracy and high speeds. They have proven their worth for supporting the main spindles in machine tools. That is why spindle bearings are installed in CNC lathes. In addition to radial forces, spindle bearings can also absorb axial forces in one direction. Bearings used in an O or X arrangement absorb axial forces in both directions and moments. Bearings in a tandem arrangement can only carry axial loads in one direction. Spindle bearings are available with a contact angle of a = 15° (suffix C) or a = 25° (suffix E). Standard spindle bearings B70, B719 and B72 have steel balls. High speed spindle bearings HSS70 and HSS719 have smaller steel balls. Universal designs can be installed in any arrangement or combined into different kits without sacrificing performance. The position of the pressure cone is marked on the outside surface of the outer ring. Bearings with the suffix UL are designed for light preload in an X or O arrangement. The bearings are suitable for operating temperatures from -30 °C to +100 °C, limited by the seal or cage material! The standard grease of the sealed spindle bearings is suitable up to a permanent temperature of +80 °C! These bearings have solid window cages made from laminated fabric (suffix T). Check the chemical resistance of the seal or cage material in the case of synthetic lubricating greases and lubricants with EP additives! Aged oil and additives contained in the oil can impair the service life of the cages and seals at higher temperatures! Be sure to observe the oil change intervals!





Express Shipment of Bearings

Express means it has to go fast! Convince yourself of our large stock of ball bearings and our fast first-aid express. So that your machine doesn't have to break down for a long time, we offer optional within Germany, in addition to express shipping, the so-called Next Day until 10 a.m. shipping. Internationally we can also ship by express. Benefit from a fast order processing and buy ball bearings by express from a professional. We offer the so-called 24 h shipping only in Germany. More detailed information about express shipping of ball bearings can be found on the page shipping costs. In our logistics warehouse you will find over 20,000 different bearings. We have one of the largest bearings warehouses in Germany for drive technologies.

Bearing-Shop

We offer cylindrical, spherical, self-aligning, tapered and spindle bearings for CNC lathes from the premium rolling bearing brands FAG and INA. In our ball bearing store you will also find quality bearings from the manufacturer SKF. Furthermore, our store includes high temperature bearings from the manufacturer SWC, also available as furnace bearings. In our logistics warehouse we also have bearings for vibratory machines VA405 and T41A from the premium manufacturers SKF and FAG, for example for screening machines. Save yourself major problems when buying ball bearings for axial or radial forces and rely on rolling bearing manufacturers that have stood for highest precision, quality and durability for generations. Rolling bearings in aircraft control systems, for example, have no cage - this means that more rolling elements can be used in the bearing, which significantly increases the load carrying capacity. In the past, brass was the cage material because of its increased running smoothness. Today, the cage is often made of glass fiber reinforced plastic, also known as polyamide, for reasons of cost and weight. In many ball bearings, a steel cage is used. Brass cages are available especially for larger bearings. In addition, our company complies with the standard according to DIN EN ISO 9001:2008. We were able to renew this quality management system in 2016. Whether radial spherical plain bearings for hydraulic cylinders, high temperature bearings, deflection rollers, pulleys, accessories for agricultural machinery, forklifts, wheel bearings, support rollers or premium spindle bearings for CNC lathes or milling machines of the brands Gildemeister, Deckel, Hurco, Chiron, Iberimex, Maho, DMG. For designs with high loads and not too high speeds, such as track rollers, crane wheels, rope pulleys, integral tapered roller bearings can be a cost-effective solution. Buying ball bearings is a matter of trust. We as a specialized trade have more than 40 years of experience in drive technology and are happy to pass on our knowledge to our customers.

In addition to rolling bearings, the product range of our ball bearing store includes plummer block housings, clamping housings, flanged housing or housing units from the most important rolling bearing manufacturers such as FAG, INA and SKF, which are among the leading ball bearing brands in Europe. For vacuum pumps or compressors, for example, precision bearings for high speeds are required. Precision bearings are used for the highest requirements, and are therefore manufactured to higher tolerance and accuracy classes than regular high-speed bearings, which you can also buy in our ball bearing store. CARB toroidal roller bearings combine the angular mobility of a spherical roller bearing with the axial mobility of a needle roller or cylindrical roller bearing. Premium ball bearings are used for combine harvesters, i.e. agricultural harvesters for mowing or threshing.

 


In other makes in addition to SKF, FAG or INA, such as Elges, SWC, SLF, NTN, NSK, Koyo, KRW, Torrington, Timken, EZO, ZEN, IKO, Nadella, Nachi, Sumitomo, Schneeberger, Permaglide, Glacier, Durbal, Gates, Optibelt, Strongbelt, Tecnamic, Dichtomatik, NAK, Simrit, Freudenberg, Loctite, Seeger, etc. do not hesitate to ask us. We have many other suppliers in our program or we can recode the articles to our stock.

Roller bearings

Discover the different roller bearings we offer in our online store. Roller bearings can be divided into the following types: Cylindrical roller bearings (axial or radial), taper roller bearings, spherical roller bearings, spherical roller bearings and CARB toroidal roller bearings. They are primarily used to fix axles, shafts, for example in electric motors, gearboxes or conveyor belts in the heavy industry and run between the inner and outer ring on hardened steel surfaces. Other areas of application would be deflection rollers for the paper industry, pressure rollers for burning machines in pellet plants or sintering tools and back-up rollers in rolling mills. Here, application-specific lubrication plays a decisive role. A good lubricant distribution as well as heat dissipation from the bearing, especially important at high speeds and loads, are therefore essential. Since lubricants separate metallic surfaces of the bearing components during operation, thereby minimizing wear and friction losses in the roller bearing, the overall lubrication condition in the bearing as well as possible additive reactions are of great importance in the selection of lubricants. The formation of an optimum hydrodynamic lubricating film promotes low-friction running of the rollers. Also, relubrication intervals that are not adhered to, as well as the correct choice of low-friction grease for miniature and precision bearings, can have a significant effect on the service life of a bearing. The standardized calculation method for dynamically stressed rolling bearings is described in more detail in ISO 281:2007(E).

Needle bearings

Needle roller bearings are roller bearings with rolling elements that are rather thin in relation to their length, the so-called needle rollers. Despite their small cross-sectional height, they have a high load carrying capacity, which is why needle roller bearings are used in automotive engineering, for example the release bearing in passenger cars between the clutch and the manual transmission. Other areas of application would be packaging machines or printing presses, for example. For very special applications, there are bearings made of stainless steel or ceramics, the so-called hybrid bearings, in which the bearing rings are made of steel, but the rolling elements are made of ceramics. Here, the surface coating plays an important role in increasing the resistance of rolling bearings to wear, environmental influences, and the passage of current, thereby generally extending the service life of needle roller bearings. The coatings are applied to the components by various physical and chemical processes. To combat the enemy of every rolling bearing, rust, the INA brand has developed the INA coating Corrotect®, also known as Triond. For particularly high wear loads, a thin, ceramic-like hard material coating is used here.

Product codes
  • NNTR

    NNTR .. Support roller based on double row full complement cylindrical roller bearings with three fixed outer ring flanges and loose flange ring on both sides of the inner ring.

  • NJ

    Cylindrical roller bearings of type NJ have two fixed ribs on the outer ring and one fixed rim on the inner ring, which can guide the shaft axially in one direction. In conjunction with an HJ angle ring, they can act as a fixed bearing to guide the shaft in both directions.

  • J

    Bearing with a sheet steel cage, the rolling elements are guided.

  • N2

    Bearings withe the suffix N2 have two locating slot in one outer ring side face 180° apart.

  • N2

    The suffix N2 describes two retaining grooves on one side of the outer ring; the suffix is ​​usually found on four-point bearings.

  • Y

    The suffix Y stands for a sheet brass cage. The rolling elements are guided.

  • M4

    The suffix M4 stands for a two-piece solid brass cage. The bearing is bolted and the rolling elements are guided.

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