Produkte

BowMax™ Bearings

Fri, 08 Jan 2021 16:49:07 GMT

Filament Wound Composite PTFE Bearings

This range is dimensionally interchangeable with cast bronze, sintered, wrapped and other types of bearings. Dimensions in accordance with ISO 4379. The outside diameters and the end faces can be machined if required.

What is a filament wound composite bearing?

BowMax™ is a long life, high strength self lubricative bearing which uses continuous fibreglass, PTFE and Polyester filaments incorporated into a special epoxy resin matrix. This filament wound composite is very high strength and is naturally concentric with no seam or overlap. The high strength laminate construction allows for a thin wall bearing, which can reduce the size and weight of the assembly. The resulting bearing exhibits a very low coefficient of friction coupled with high load-bearing capacity.

Lubrication

After a very short time, a film of the PTFE will transfer from the bore of the bearing onto the shaft. No lubrication is required, however, if some lubricant can be provided, the life will be extended - adding protection against the ingress of contaminants. For further technical information or assistance with your designs or applications, please contact our sales department.

Attributes:

High Load Capacity
Good for Shock Loads
Non-Corrodible
Good for Contamination Resistance
Good Chemical Resistance
Tolerates Edge Loading
Low Friction

Low Wear Rate
Withstands Misalignment
Excellent for Vibrations
Meets RoHS Requirements
Intrinsically Safe
Lowers Cost of Maintenance
Large Temperature Range

Applications:

Agricultural Equipment
Quarrying Machinery
Hydraulic Cylinder Bushings
Hoists
Excavators
Forestry Equipment

Boom Loaders
Loading Shovels
Conveyors
Food Machinery
Medical Equipment
Cranes and many more

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Needle Rollers, Rollers and Precision Shafts

Tue, 18 Jul 2023 12:25:31 GMT

Bowman offers needle rollers in a range of sizes and materials, including high carbon chrome steel (52100) and stainless steel (316/304/400C)

Hardness

RC58/62 for 52100

RC20/30 for 316/304

RC58/62 for 440C

Surface finish

Ra < = 0.16um

Needle Rollers, Rollers and Precision Shaft Data

DIAMETER	LENGTH
1mm	2.8mm
	3.8mm
	4.8mm
	5.8mm
	6.8mm
1.5mm	4.8mm
	5.8mm
	6.8mm
	7.8mm
	8.8mm
	9.8mm
	10.8 mm
	11.8 mm
	12.8 mm
	13.8 mm
	14.8 mm
1.7mm	10.8 mm
	11.8 mm
	12.8 mm
	13.8 mm
	14.8 mm
2mm	4.8mm
	5.8mm
	6.8mm
	7.8mm
	8.8mm
	9.8mm
	10.8 mm
	11.8 mm
	12.8 mm
	13.8 mm
	14.8 mm
2.5mm	4.8mm
	5.8mm
	6.8mm
	7.8mm
	8.8mm
	9.8mm
	10.8mm
	11.8mm
	12.8mm
	13.8mm
	14.8mm
	15.8mm
	16.8mm
	17.8mm
	18.8mm
	19.8mm
	20.8mm
	21.8mm
	22.8mm
	23.8mm
	24.8mm
3mm	4.8mm
	5.8mm
	6.8mm
	7.8mm
	8.8mm
	9.8mm
	10.8mm
	11.8mm
	12.8mm
	13.8mm
	14.8mm
	15.8mm
	16.8mm
	17.8mm
	18.8mm
	19.8mm
	20.8mm
	21.8mm
	22.8mm
	23.8mm
	24.8mm
3.5mm	5.8mm
	6.8mm
	7.8mm
	8.8mm
	9.8mm
	10.8mm
	11.8mm
	12.8mm
	13.8mm
	14.8mm
	15.8mm
	16.8mm
	17.8mm
	18.8mm
	19.8mm
	20.8mm
	21.8mm
	22.8mm
	23.8mm
	24.8mm
	25.8mm
4mm	4.8mm
	5.8mm
	6.8mm
	7.8mm
	8.8mm
	9.8mm
	10.8mm
	11.8mm
	12.8mm
	13.8mm
	14.8mm
	15.8mm
	16.8mm
	17.8mm
	18.8mm
	19.8mm
	20.8mm
	21.8mm
	22.8mm
	23.8mm
	24.8mm
	26.8mm
	27.8mm
	28.8mm
	29.8mm
4.5mm	5.8mm
	6.8mm
	7.8mm
	8.8mm
	9.8mm
	10.8mm
	11.8mm
	12.8mm
	13.8mm
	14.8mm
	15.8mm
	16.8mm
	17.8mm
	18.8mm
	19.8mm
	20.8mm
	21.8mm
	22.8mm
	23.8mm
	24.8mm
	26.8mm
	27.8mm
	28.8mm
	29.8mm
5mm	5.8mm
	6.8mm
	7.8mm
	8.8mm
	9.8mm
	10.8mm
	11.8mm
	12.8mm
	13.8mm
	14.8mm
	15.8mm
	16.8mm
	17.8mm
	18.8mm
	19.8mm
	20.8mm
	21.8mm
	22.8mm
	23.8mm
	24.8mm
	26.8mm
	27.8mm
	28.8mm
	29.8mm
5.5mm	7mm
	13.8mm
	17mm
	18.8mm
	26.8mm
	33.8mm
	35.8mm
5.7mm	16.6mm
6mm	6mm
	8mm
	9mm
	10mm
	11mm
	12mm
	13mm
	16mm
	17.8mm
	19.8mm
	21mm
	23.8mm
	25.8mm
	26.2mm
	29.8mm
6.04mm	9.4mm
6.193mm	23.75mm
6.32mm	12.7mm
6.33mm	25.14
6.35mm	6.35mm
	7.2mm
	10.7mm
	20.8mm
6.5mm	6.5mm
	7mm
	9mm
	10mm
	18mm
	20.8mm
	27.8mm
	31.8mm
	33.8mm
	37.8mm
	39.8mm
6.9mm	11.3mm
7mm	7mm
	8mm
	9mm
	10mm
	11mm
	14mm
	16mm
	18mm
	20mm
	29.8mm
	35.8mm
	37.8mm
	38mm
7.071mm	30mm
7.071mm	40mm
7.5mm	7.5mm
	8mm
	9mm
	10.5mm
	12mm
	15.5mm
	20mm
	29.8mm
	34.8mm
	39.8mm
7.92mm	14.4mm
7.92mm	14.5mm
7.938mm	25mm
7.99mm	13mm
8mm	8mm
	9mm
	12mm
	13mm
	16.5mm
	17.3mm
	22mm
	40mm
8.035mm	15mm
8.5mm	21mm
8.5mm	21.75mm
8.74mm	17.3mm
8.8mm	12.7mm
9mm	10mm
	14mm
	24.5mm
	34.8mm
9.23mm	13.5mm
9.5mm	16.2mm
9.75mm	13.4mm
9.85mm	11.5mm
9.86mm	20mm
9.525mm	13.6mm
10mm	10mm
	11mm
	12mm
	14mm
	15mm
	16mm
	17mm
	18mm
	20mm
	30mm
	41.8mm
	47.8mm
	49.8mm
	59.8mm
10.2mm	9.5mm
11mm	11mm
	12mm
	15mm
	18mm
10.312mm	50mm
12mm	12mm
	13mm
	14mm
	16mm
	21mm
	22mm
	25mm
	28mm
12.7mm	14mm
12.7mm	47mm
13mm	15mm
13.39mm	25mm
14mm	15mm
	16mm
	20mm
	22mm
14.3mm	31mm
15mm	15mm
	16mm
	22mm
	24mm
	39mm
16mm	17mm
	24mm
	27mm
	55mm
18mm	19mm
18mm	32mm
18.82mm	22mm
19mm	20mm
19mm	28mm

Oilite® Bearings

Tue, 19 Jul 2016 08:24:24 GMT

Oilite® Bearings

After almost 90 years Oilite bearings are still the undisputed market leader in sintered self-lubricating bearings. The technical knowledge and manufacturing expertise behind Oilite bearings have resulted in a vast array of sophisticated, high-quality components that are supplied across a wide range of industries throughout the world. Oilite bearings have a rich history dating back to the 1930s when they were developed by Chrysler. They have since been used in everything from the iconic Supermarine Spitfire to Formula 1 cars. Oilite bearings continue to set the standard for all other self-lubricating bearings and Bowman International is proud to be the sole supplier of genuine Oilite bearings in the UK and Europe in partnership with Beemer Precision Inc. in the USA.

Oilite® is a registered trademark of Beemer Precision Inc. USA

We are also able to offer bespoke Oilite sintered bearings and structural powdered metal components - click here for more information.

Widest range in Europe

Oilite bearings are the most popular self-lubricating bearings in the UK, but they are also in high demand in Europe. Bowman International offers the widest choice of Oilite bearings anywhere in Europe with standard stock ranges available in metric and imperial. We stock a vast range of European sizes to ensure our customers always have the benefit of fast delivery, regardless of whereabouts in Europe they are located.

Oilite® Special Lubricants and Additives

Standard Oilite bearings are impregnated with highly refined mineral oil to ISO VG (SAE 30) having a high viscosity index and containing anti-oxidant, anti-rust and defoamant additives.

A wide range of lubricants are available to meet specific requirements within a temperature range of -60°C to 200°C, lubricant additives are also available to impart anti-wear properties in marginal lubrication conditions. Special additives are also available for use with various shaft material and finishes. We are also able to offer special oil to suit customer-specific requirements.

Oilite® Storage

Oilite bearings can be stored for considerable periods without deterioration or loss of oil if kept in a metal or other non-absorbent container, at room temperature. Proximity to heat could cause oil loss by sweating, in which case recoiling is necessary before fitting. Soak in oil if storage conditions are in doubt. We are able to offer Oilite bearings in sealed plastic bags or boxes.

Oilite® Spherical Bearings

All spherical bearings can be supplied in various grades of sintered bronze and iron, with lubricants to suit different applications. Spherical bearings can be supplied with one or two collars. Various bore tolerances and non-standard lengths can be supplied.

Materials

Oilite bearings are manufactured in three standard materials. Standard Oilite oil retaining tin bronze is the generally specified material. It gives a good balance between strength, wear resistance, conformability and durability in operation. Ideal in a wide variety of applications where self-lubricating properties are required over a long period of time.

Super Oilite® is an iron copper material suited to high static loads and slow oscillatory motion.

Iron Oilite® are 100% iron oil-retaining bearings that provide an ideal solution in high-stress low revolution applications.

Please see the Oilite® materials page for further technical details.

Bespoke bearings

In the event that your requirements cannot be met by stock items, our bespoke service enables us to produce both bronze and iron Oilite bearings and customer-specific structural parts that are specifically designed to meet individual requirements. We take a consultative approach to each customer’s needs and will never try and fob you off with a bearing that is not 100% suitable and cost-effective for your project.

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BowMet® Bronze Bearings

Thu, 11 Aug 2016 10:10:33 GMT

BowMet - Heavy duty bearings for applications that other bearings can't handle!

The BowMet range has been billed as the biggest advance in plain bearings in more than 70 years by the industry press, and quite rightly so. This new range of heavy-duty bearings offers a higher load capacity than any other proprietary plain bearing. Its heat, speed and corrosion capabilities combine to offer a high strength bearing that can stand up to even the harshest of conditions.

These heavy-duty bearings have been developed using ToughMet® material by Materion in the USA. The ToughMet material that BowMet is made from was used on the Mars Rover in 2011, so that should give you some idea of just how ‘tough’ ToughMet is!

With a static load of 820 N/mm² and an impressive PV factor of 9.6, these heavy-duty bearings are ideally suited to a wide range of harsh industrial applications including:

Mining & quarrying
Heavy construction
Motorsport
Offshore oil & gas
Marine

The ToughMet material resists saltwater corrosion, hydrogen embrittlement and chloride stress-corrosion cracking better than most copper alloys. Indeed, in some sulphide environments, the corrosion rate is comparable to stainless steel and nickel alloys.

The capacity to deliver increased reliability, reduced downtime, lower maintenance costs and ultimately fewer warranty claims mean that BowMet range of heavy-duty bearings really is nothing short of a revolution in bearing design and capability.

More information on ToughMet® and Materion

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WMU® PTFE Lined Bearings

Wed, 17 Aug 2016 13:42:51 GMT

WMU® Bearings

Our WMU range of PTFE lined wrapped bearings is suitable for dry running, low friction, low wear applications. These wrapped bearings have excellent sliding characteristics forming a transfer film that can protect the mating metal surface.

Our PTFE lined wrapped bearings have been developed for high duty applications. Such applications include, but are not limited to:

Automotive suspension struts
Shock absorbers
Hydraulic cylinders
Gear pumps and motors
Axial and radial piston pumps and motors
Many other applications

We are able to offer PTFE lined wrapped bearings in metric plain, imperial plain, metric flanged, metric washers, imperial washers, metric strip and imperial strip. Special sizes can be produced to customer requirements.

Equivalent alternative brands include: Glacier Garlock DU, P10, P14

Structure

A lead-free polymer fibre mixture provides an initial transfer film which effectively coats the mating surface of the bearing assembly, forming an oxide-type solid lubricant film
Sintered bronze powder provides maximum thermal conductivity away from the bearing surface and also serves as a reservoir for the PTFE mixture
The steel backing provides a high load-carrying capacity which provides the wrapped bearings with outstanding heat dissipation
The copper/tin plating provides excellent corrosion resistance
These are versatile and extremely durable wrapped bearings and can be used in many applications. Feel free to contact us for a discussion about how PTFE lined wrapped bearings could fit into your project.

WMU-B & WMU-SS Bronze Backing Strip

In addition to the standard steel-backed, PTFE lined wrapped bearings we also offer our WMU-B and WMU-SS range with a bronze or stainless steel backing strip for applications where the standard steel is not suitable. Range, dimensions and tolerances are exactly the same as the standard PTFE lined wrapped bearings.

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WMX® Acetal Lined Bearings

Wed, 17 Aug 2016 13:51:53 GMT

WMX® Bearings

Our WMX range of wrapped acetal lined bearings is suitable for rotary and oscillating movement applications. They benefit from long re-lubrication intervals, no absorption of water, outstanding damping behaviours and have a low susceptibility to edge loading.

The WMX range is ideal for the automotive, machine building and agricultural industries and indeed any application where lubricant cannot be supplied continuously.

Just a few examples of where our WMX range is used are as follows:

Rear chassis hinges
Articulation joints
Spindles of drills
Gearboxes & clutches
Grinding and milling machines

Structure

Our wrapped acetal lined bearings have a high wear resistance and low friction even with very small quantities of lubricant
The surface carries a pattern of circular indents which should be filled with grease on assembly
Low carbon steel gives exceptionally high load carrying capacity and excellent heat dissipation

Our WMX range of wrapped acetal bearings can hugely reduce maintenance costs on projects large and small and are stocked in metric plain, imperial plain, metric washers. Imperial washers, metric strip and imperial strip.

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Bowman Oilless® Bearings

Wed, 17 Aug 2016 15:49:27 GMT

Bowman Oilless® Bearings - the WMO Range

Our WMO range of oilless bearings is the perfect solution for projects where lubrication cannot easily be provided or where conventional lubricants may carbonise. The design of oil feeding systems is time-consuming and expensive - The use of our oilless bearings can greatly reduce costs of maintenance and oil as it removes any need for such a system.

Bowman Oilless bearings have been developed for high load, low-speed applications and are made of rotational cast high-strength bronze using a specially formed graphite plug as a lubricant.

Our oilless bearings are graphite loaded and can withstand temperatures of up to 400°C (800F) as well as cryogenic temperatures down to -200°C (-400°F) depending on which material is selected.

Typical applications include, but are by no means limited to:

Kilns
Dryers
Injection moulding machines
Dust collectors
Louvres
Hot conveyors

Bowman oilless bearings benefit from outstanding chemical and corrosion resistance. The lubricant used in these bearings is formed from abrasion resistant materials (such as graphite, PTFE etc) and has a stabilised molecular structure.

These oilless bearings are suitable for dry environments where contamination is a risk, wet applications where there is high humidity and applications where the bearing is in an inaccessible location. Bowman Oilless bearings are lubricated for life!

Please feel free to get in touch with our technical team to ascertain which would be the most suitable combination to suit your application.

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WMB® CuSn8 Bronze Bearings

Wed, 17 Aug 2016 15:24:57 GMT

WMB® Bearings

Our range of WMB bronze bearings manufactured from CuSn8 rolled phosphor bronze alloy material is extremely versatile and well suited for a wide range of applications. These bronze bearings have been developed for slow speed, high load applications, especially suited for oscillating motion and are perfect for the construction, mining/quarrying, agriculture and automotive industries.

Our WMB range is capable of taking axial as well as radial loads and have outstanding resistance against saltwater and corrosion cracking and most importantly; are much more cost-effective than machined, roller or ball bearings.

Structure

The WMB ranges are made entirely of CuSn8. The working surface is rolled with diamond indentations or stamped with oil grooves. On assembly or during operation the indentations can be filled with grease or oil which acts as a reservoir creating excellent long term lubrication.

The bronze bearings are produced from phosphor bronze alloy rolled strip which is hard and has an excellent finish. The material composition is as follows:

Cu - Balance

Sn - 8.5%

P - 0.2%

The WMB range is another extremely versatile range. Please feel free to get in touch with us to discuss your specific project requirements. The bronze bearings can be offered with pockets, grooves or thru-holes for heavier applications.

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SWB Bronze Lined Bearings

Wed, 17 Aug 2016 14:34:31 GMT

SWB Bearings

Our range of Standard Wrapped Bearings (SWB) are steel-backed and lined with sintered bronze. This range is extremely tough and versatile and available in metric and imperial sizes. SWB bearings are suitable for a wide range of general-purpose and heavy-duty applications and can be lubricated with either oil or grease.

Our in-house machining service can produce non-standard sizes to suit specific customer requirements.

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WM1® & WM3® Ball Bearings

Wed, 17 Aug 2016 14:56:53 GMT

WM1® & WM3® Ball Bearings

Our range of popular metric ball bearings is available as standard in 52100 chrome steel. We can also supply alternative material, such as stainless steel on request.

Our ball bearing range is available with various seal configurations and can incorporate (not limited to) the following modifications as required:

Circlip grooves
Modified lengths
Taper bores
Modified bores
Anti-rotation slots
Non-standard radial play

WM1 ball bearings are produced to ABEC1 with WM3 bearings to ABEC3 standards.

In addition to listed products we have a wide range of WM3 metric miniature series bearings in stock Please feel free to contact our sales team for further details.

WMG® Plastic Bearings

Wed, 17 Aug 2016 15:19:38 GMT

WMG® Bearings

Our WMG range of plastic bearings can be used across a wide range of applications and industries.

These thermoplastic bearings are suitable for applications requiring high abrasion resistance in atmospheres where dust or other particles are a constant problem. Our WMG range has a very low level of dynamic friction and almost zero stick-slip characteristics.

We can also offer bearings manufactured in many different types of plastic material to suit various applications and can be machined or moulded depending on the quantities required.

For fitting information, please refer to the Bearing Selector.

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TWP Acetal Washers

Wed, 17 Aug 2016 15:27:46 GMT

TWP Washers

Our range of TWP acetal copolymer washers is ideal for a range of application across many industries and are extremely versatile. They benefit from having excellent sliding properties, a good temperature range, are physiologically inert and are lightweight. They also have a high impact strength and excellent resilience.

Materials

Our TWP acetal washers have an excellent combination of properties, including low moisture absorption, good dimensional stability and low friction, making them suitable for many thrust bearing applications.

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Sintered Components

Wed, 17 Aug 2016 15:32:54 GMT

Sintered Components

Bowman can offer shaped sintered components in a variety of iron or bronze materials. The advantage of the powder metallurgy process against other conventional methods of forming (such as casting and forging), is the ability to produce complex shaped parts to close tolerances in volume at a much lower cost.

Correct design is vital for sintered components. Please contact our technical department for advice on your specific application.

K-Couplings

Wed, 17 Aug 2016 15:35:01 GMT

K-Couplings

Our range of K-Couplings are made of double loop ELASTACAST® polyurethane elastomeric material assembled to zinc plated steel hubs. The crimping process is carried out by specialised equipment which guarantees the perfect crimp required for long life and excellent performance. The hubs mount to shafts using Allen screws. Keyed hubs are available in the 5803 and 5804 series.

Hub Features:

Annealed steel for maximum strength
Zinc plated to resist corrosion
Rounded corners to prevent cutting
Precision swaged mechanical crimp
Standard set screws
Keyways available to order

Element Features:

Polyurethane material is cut and wear-resistant
Unique design configuration provides maximum flexibility
Generous radius for added strength
Full wrap-around design holds securely to hub

Seven steps to follow in selecting your K-Coupling:

Determine the horsepower (torque) requirement of your application. Allow for peak start/stop torque. Make sure the torque requirement is within the K-Coupling® rating limits. See tables.
Determine the amount of space available for installing the coupling. Compare this with the hub-to-hub and outside loop dimensions shown.
Consider the shaft sizes involved and the amount of space between them, because the required bore size on one hub sometimes differs from the other.
Predetermine the maximum degree of angular and parallel misalignment for which the coupling will have to compensate. Be sure your requirements are within the recommended limits.
Decide whether a keyway will really be necessary. If so, they are available at extra cost on series 5803 and 5804.
Standard keyways: 3mm for 12mm shafts and 5mm for 14mm, 15mm and 16mm shafts.
Recommended continuous operating temperature for the K-Coupling® is 18°C to 83°C in many atmospheres, however, consideration must be given to exposure to solvents, chemicals, acids and gases.

Other Products

Mon, 31 Oct 2016 14:56:56 GMT

Other Products

Aside from our main ranges, we are able to offer various other solutions including white metal bearings, filament wound bearings, sintered filters, plastic & composite bearings, case hardened steel bearings, tension bearings and many more. For more information on these solutions, feel free to contact us.