Bearings for Knitting Machines
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Franke Wire Race Bearings for Circular Knitting Machines

Franke Wo rldwide – Partner in Tech lo g and Service no y Traditio n since 1936 Erich Franke, an engineer, develops the Wire Race Bearing in 1 93 6 while looking for a space-saving bearing solution for an optical device. He describes his invention as „a ball bearing with exceedingly low spatial requirements which easily satisfies the highest demands on a body's precision of movement in relation to another.“ Franke's first high-volume series production are wire race bearings for circular knitting machines. Over the years we have consistently enhanced his principle of four race rings. Today...

Our entire quality management is certified accor ding to DIN EN ISO 9 0 0 1 . Sustainability is the connecting link in our entire value added chain. Our environmental management system satisfies the requirements defined in DIN ISO 1 4 0 0 1 . Documented processes in production and administration, external and internal audits also, guarantee a constantly high level of manufacturing quality. Our laboratory is equipped to conduct all necessary tests on resilience and service life. Samples and 1 0 0 % inspections verify our efforts to deliver unbeatable product quality. Franke Wire Race...

The Influ ence o f Bearings o n Fabric Qu ality The bearing that rotates the dial, cylinders and fabric take-down has the biggest influence on the needle guidance and therefore on the fabric that is produced. Perfect results are only achieved by accurate radial and axial guidance of the needles. The introduction of Franke bearings as component parts has become a pioneering development in the design of high-performance circuar knitting machines. The typical feature of Franke wire race bearings are their special tempered race rings with ground or drawn raceways on which the balls run. The race...

Franke Wire Race Bearings: compact, highly durable, customizable The Franke principle delivers maximum design freedom. In our wire race bearings, the rolling process does not take place directly between the rolling element and the mating structure, and instead with low friction on the race rings. You receive maximum design freedom thanks to their compact and highly durable 4-point contact. You are at liberty to choose whichever material, geometry, size, bore pattern, gear and sealing you require. High Precision Franke wire race berings get their high accuracy from the special grinding...

Mo n g o Bearin u tin f gs Select the block of washers. The thickness of the block should not be less than 0.1 mm of the calculated average value. Washers are selectable in thickness of 0.025 mm up to 1.0 mm. Distribute the washers between all the check and fastening screws of the separated mating structure. Install a lever arm of 1m from center of bearing Use a tension spring balance to measure the preload (torque resistance) e.g. 100 Nm for KK 1.000 mm. After run-in-process (few hours) the preload reduces by 30% to around 70Nm and keeps stable. preload before run-in preload after run-in

Mo st po pular Bearings fo r yo ur Applicatio n LEL4 Most commonly used. Ground race ways for highest running culture. Predefined double profile. Drawn or ground race ways. Drawn race ways. Easy to integrate.

Franke GmbH Obere Bahnstraße 64 73431 Aalen, Germany Tel. +49 7361 920-0 Fax +49 7361 920-120 info@franke-gmbh.com e_2020 Changes and errors reserved. Watch the Video > Function principle of Franke Wire Race Bearings