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.

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.

We use cookies and similar tools that are necessary to enable you to make purchases, to enhance your shopping experiences and to provide our services, as detailed in our Cookie notice. We also use these cookies to understand how customers use our services (for example, by measuring site visits) so we can make improvements.If you agree, we'll also use cookies to complement your shopping experience across the Amazon stores as described in our Cookie notice. Your choice applies to using first-party and third-party advertising cookies on this service. Cookies store or access standard device information such as a unique identifier. The 96 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products. Click "Decline" to reject, or "Customise" to make more detailed advertising choices, or learn more. You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice. To learn more about how and for what purposes Amazon uses personal information (such as Amazon Store order history), please visit our Privacy notice.

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.

Image

Image

Flange: no. Number of marble tracks: x Seal: ZZ. Storage air: C3. Groove and snap ring: no. Ring material: rolling steel. Roller body material: rolling steel. Cage material: sheet steel. Fully spherical: no. Outer diameter (mm): 110 Inner diameter (mm): 50 Width (mm): 27

If you agree, we'll also use cookies to complement your shopping experience across the Amazon stores as described in our Cookie notice. Your choice applies to using first-party and third-party advertising cookies on this service. Cookies store or access standard device information such as a unique identifier. The 96 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products. Click "Decline" to reject, or "Customise" to make more detailed advertising choices, or learn more. You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice. To learn more about how and for what purposes Amazon uses personal information (such as Amazon Store order history), please visit our Privacy notice.

Image

The Deep Groove Ball Bearing, known as 6004-2RS1-C3-SKF SKF, has an inner diameter of 20 mm, an outer diameter of 42 mm and a thickness of 12 mm.

The Deep Groove Ball Bearing, known as 6004-2RS1-C3-SKF SKF, has an inner diameter of 20 mm, an outer diameter of 42 mm and a thickness of 12 mm.

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".

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.

The Deep Groove Ball Bearing, known as 6004-2RS1-C3-SKF SKF, has an inner diameter of 20 mm, an outer diameter of 42 mm and a thickness of 12 mm.

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.

We use cookies and similar tools that are necessary to enable you to make purchases, to enhance your shopping experiences and to provide our services, as detailed in our Cookie notice. We also use these cookies to understand how customers use our services (for example, by measuring site visits) so we can make improvements.

To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.

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.

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".

Customer Reviews, including Product Star Ratings, help customers to learn more about the product and decide whether it is the right product for them.

Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.