6203ZZ Bearing 17x40x12 Shielded C3 - 6203zz bearing
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.
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.
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".
Because of their versatility, Single-row, Deep-groove Ball Bearings are the most popular of all the ball bearing types. NACHI Deep-groove Ball Bearings are available in a wide range of series defined by the JIS (ISO) standard dimension plan and are also made to meet specialized dimension and configuration requirements. NACHI Deep-groove Ball Bearings are manufactured in both standard precision grade (ISO Grade 0 -ABEC Grade 1) as well as in high-precision grades...
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.
The Deep Groove Ball Bearing, known as 6307-2RS-C3 Generic, has an inner diameter of 35 mm, an outer diameter of 80 mm and a thickness of 21 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".
Single-row. Deep-groove Ball BearingsWith snap ring groove / With snap ring / Shield type with snap ringBore Diameter: 10 - 130mm
The Deep Groove Ball Bearing, known as 6307-2RS-C3 Generic, has an inner diameter of 35 mm, an outer diameter of 80 mm and a thickness of 21 mm.
• Superior heat-resistant rubber seals for enduring sealing performance up to 130 °C• NACHI Quest original high-performance grease doubles grease life even up to 150 °C• Saving cost and energy due to low power loss from low and stable running torque by new NACHI seal design
Applications: Machine tools, electric motors, pumps, fans, pulleys, transmissions, household appliances, engine accessories, power tools and conveyors
The Deep Groove Ball Bearing, known as 6307-2RS-C3 Generic, has an inner diameter of 35 mm, an outer diameter of 80 mm and a thickness of 21 mm.
NACHI EUROPE GmbH Bischofstr. 99 47809 Krefeld Germany Phone: +49 2151 650 46-0 Fax: +49 2151 650 46-90 Email: bearings_at_nachi.de www.nachi.de
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.
• Simplicity and accuracy make deep groove ball bearings the most versatile and widely used type of bearing, supplemented by numerous modification options to further increase versatility• Smooth and quiet running properties