RKB Main Prefix and Suffix System
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RKB Main Prefix and Suffix System - 1

main PREFIX AND SUFFIX SYSTEM

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Main Prefix and Suffix System BEARING INDUSTRIES © 2010 The contents of this document are copyright of the publisher Every care has been taken to ensure the accuracy of the information in the present document but no liability can be accepted for any errors or omissions contained herein, or in case losses and/or damages (direct, indirect, consequential) should occur. RKB Bearing Industries reserves the right to make amendments without prior notice.

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BEARING INDUSTRIES The RKB Bearing Industries Group is a Swiss manufacturing organization operating in the bearing industry for over 70 years, with 90.000 sqm and 135 million euros of tangible assets and a monthly production capacity exceeding 350 tons of steel. The experience gained over the years provides RKB with the know-how and expertise necessary for technological valued-added bearings up to 1925 mm outer diameter, particularly for the heavy industry. Thanks to its pioneer business model, based on a vertically integrated system, RKB offers reliable cost-effective solutions, with...

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RKB Main Prefix and Suffix System - 4

Structure of rolling bearing Main prefixes and suffixes

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Structure of rolling bearing codes Each rolling bearing is identified by a code which specifies its type, dimensions, tolerances, clearance and, in some cases, further essential characteristics. Rolling bearings of different manufacturers which have the same standardized code in accordance with DIN 623 are interchangeable. The interchangeability of individual parts of separable rolling bearings is not guaranteed. The basic code is formed by the series and bearing bore codes. Prefixes normally indicate rolling bearing components while suffixes identify special designs and characteristics....

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Main prefixes and suffixes Standardized rolling bearings with uncoded inner diameters Sealed spherical roller bearing RS seal at both sides of bearing Z shield at both sides of bearing The meaning of these characters attached to the basic code is not specifically fixed. They are used in accordance with requirements for identifying modifications of the bearing design and certain design features. They can also be combined with each Approximated to tolerance class PN (PO) Approximated to tolerance class P6 Outer ring of a rolling bearing which cannot be defined by the prefix L (as a rule...

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JRK Inner ring with rolling element and cage assembly if the prefix R cannot be used (as a rule non-separable bearings) K Tapered bearing bore, taper 1:12 K30 Tapered bearing bore, taper 1:30 L Separable bearing ring, including possible loose lips of separable roller bearings. Also, separable bearing rings which consist of several parts M Machined brass cage MA Machined brass cage, outer ring centred MAS Machined brass cage, outer ring centred, with lubrication grooves in the guiding MB Machined brass cage, inner ring guided MBS Machined brass cage, inner ring guided, with lubricating...

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RKB Main Prefix and Suffix System - 9

BEARING INDUSTRIES Via Primo Agosto • 6828 Balerna • Switzerland info@rkbeurope.com • www.rkbbearings.com Technological Bearings

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