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.

If after submitting payment for your goods, you decide to cancel the order, and the goods have not been dispatched The Bearing Company will  Refund you in full by the payment method chosen at the time of the order being placed.

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".

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.

The Deep Groove Ball Bearing, known as 6308-2RS-SKF SKF, has an inner diameter of 40 mm, an outer diameter of 90 mm and a thickness of 23 mm.

We aim to ship all UK mainland orders placed by 3.00 pm Monday to Friday the same day. However if this is not possible due to reasons beyond our control we will aim to despatch the following working day.

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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.

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.

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You must email us within 5 days of receipt for return/exchange instructions. Sorry, we cannot refund delivery costs. Items must be in their original condition. Customers will have their payments refunded within five days of the company’s receipt of the returned goods.

The Deep Groove Ball Bearing, known as 6308-2RS-SKF SKF, has an inner diameter of 40 mm, an outer diameter of 90 mm and a thickness of 23 mm.

We aim to ship all UK mainland orders placed by 3.00 pm Monday to Friday the same day. However if this is not possible due to reasons beyond our control we will aim to despatch the following working day.

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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.

Royal Mail 48™ – the aim is to deliver your parcels within two working days, with a small minority within 3 working days @ £3.75 excluding VAT

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".

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.

The Deep Groove Ball Bearing, known as 6308-2RS-SKF SKF, has an inner diameter of 40 mm, an outer diameter of 90 mm and a thickness of 23 mm.