Some bearings are available with more or less important variants (high or low internal clearance, special grease, very high temperature, etc.). These variants are systematically indicated by prefixes and suffixes in the part number.For example, the suffix "2RS" means that the bearing is splash-proof, thanks to a sealing flange on both sides of the bearing.The suffix "C3" means that the bearing has increased internal clearance, and will require a higher operating temperature, or a higher rotation speed.

The ABEC standard is used to classify bearings according to their machining tolerance. This standard is regularly called into question because it does not include certain technologies that are important for guaranteeing proper operation, both in terms of efficiency and bearing life.123Roulement therefore makes little use of this standard.

Post Royal Mail 48 - 0.1KG - 2.00KG Currently free of charge (UK Orders ONLY over £12.00 GBP) however this may change so please don't assume this will apply to future orders. This can be upgraded to Royal Mail 24 (First Class Post), prices available on checkout like :Royal Mail Standard 48  : £3.29First Class Post Signed For : £4.25

If you order products from our website for delivery outside the UK, they may be subject to import duties and taxes which are levied when the delivery reaches the specified destination. You will be responsible for payment of any such duties and taxes. Please note that we have no control over these charges and cannot predict their amount. Please contact your local customs office for further information before placing your order.

UPS Standard Up to 5KG approximately (£18.00 GBP) Available for many European countries. Delivery times vary from 2-3 days up to 5-7 day. Please enquire for specific countries.

A stainless steel bearing is generally magnetizable, as it is made from AISI 420 stainless steel, which is harder and more shock-resistant than standard stainless steel (AISI 304).To check whether your bearing is made of stainless steel, simply read the reference engraved on the side of the bearing. This reference should begin with the prefix "S" meaning "Stainless Steel".

Collection in person, or arranging for a carrier of your choice to collect your goods on your behalf. In both cases we ask that you allow us time to prepare your order for collection, as large orders can take time to pick and pack.

These suffixes mean "with 1 or 2 sheet metal deflectors", for dust-tightness. At 123Roulement, we specify whether the bearing is sealed on 2 sides with "ZZ".

Single row deep groove ball bearings are versatile, self-retaining bearings with solid outer rings, inner rings and ball cage assemblies. They are simple in design robust in operation and easy to maintain.

We also ask that if you are arranging for your order to be collected that you inform us who will be collecting your parcel and give them your order number - this is a unique number allocated to every order.

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UPS Standard 0.5KG Up- Next day UK mainland delivery, excluding off shore islands or Scottish Highlands (Price from £7.05)

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The Deep Groove Ball Bearing, known as 6203-Z Generic, has an inner diameter of 17 mm, an outer diameter of 40 mm and a thickness of 12 mm.

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UPS Express 0.5KG Up- Next before 10:30AM UK mainland delivery, excluding off shore islands or Scottish Highlands (Price from £11.27 Up)

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UPS Express available to all countries that we trade with. Prices vary depending on weight and country Zone. Prices start from (£25.00 GBP)

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These suffixes indicate that the cage (the part of the bearing that holds the balls apart) is made of polymer material. Usually made of glass-fiber-reinforced polyamide.

The Deep Groove Ball Bearing, known as 6203-Z Generic, has an inner diameter of 17 mm, an outer diameter of 40 mm and a thickness of 12 mm.

UPS Express saver available to all countries that we trade with. Prices vary depending on weight and country Zone. Prices start from (£20.00 GBP)

Means "increased internal clearance". Often referred to as high-speed, this means that the bearing is designed for high rotational speeds and moderately high temperatures. CAUTION: a bearing with increased internal clearance will not operate optimally at low speeds. Please refer to the data sheet for the bearing you are looking for to find out its rotation speed limit.

This suffix indicates that the bearing is designed for very high operating temperatures. In general, the temperature is indicated after this suffix.Beware, these bearings are not suitable for all applications, and will require a high temperature for optimum service life.

These suffixes mean "with 1 or 2 rubber seals". At 123Roulement, we use the number "2" to specify when the bearing is sealed on both sides.

UPS Express Saver 0.5KG Up- Next day AM UK mainland delivery, excluding off shore islands or Scottish Highlands (Price from £10.93 UP)

The Deep Groove Ball Bearing, known as 6203-Z Generic, has an inner diameter of 17 mm, an outer diameter of 40 mm and a thickness of 12 mm.