Page 1031 - IGUS Bearing

xiros polymer ball bearings | Technical data xiros polymer ball bearings | Technical data
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Radial deep groove ball bearings design Other types
The xiros polymer ball bearings are single-row deep xiros radial deep groove ball bearings
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groove ball bearings based on DIN 625. The lubrication and The other designs include:
maintenance-free ball bearings consist of four components: ● Convex rollers which can run directly on a profile
● Profiled rollers, e.g. for thread/cable guidance
The outer and inner races ● Thrust and slewing ring ball bearings for absorbing
The suitability of a xiros polymer ball bearings is largely axial loads
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determined by the materials of the two races. These are ● Self-aligning ball bearings Housing Front Back Press in front of ball Shaft (h6 tolerance), A locating spigot
made from igus tribo-polymers to maximise service life and ● Ball bearings designed e.g. for installation in tube ends (H7 tolerance) (balls visible) (cage visible) bearing first fit with chamfer side is required
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minimise friction. Choice of 5 materials. They allow different (also for conveyor rollers) facing in
values of application temperature, media resistance and ● Double-row bearings for absorbing higher forces To press in the xiros polymer ball bearing over the entire width of the housing, apply pressure on the outer
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price. The table of materials (u Page 824) provides exact race. xiros radial deep groove ball bearings are only suitable for limited axial loads.
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information on this topic. Pillow block and fixed flange bearings
This range is made up by combining xiros polymer ball Development and tests Predictability
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Outer race bearings with the igubal pillow block and fixed flange Through numerous tests the race materials were optimised. As part of the development of xiros polymer ball bearing
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housings, resulting in a higher flexibility in terms of installation The polymers we have developed for use with ball bearings tests are carried out continuously. The high number of test
of the bearings. The bearing housings make it easy for allow higher speeds, greater loads, and longer service life. results makes it very difficult to present this information in
Inner race
the user to install these maintenance-free components. But the development continues. We believe that polymer ball tabular form. It is for this reason that igus has developed
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Both fixed flange and pillow block bearings are available bearing technology will continue to advance, especially with the online service life calculator, which uses real test results
as fixed or as pivoting design. The difference between the our experience in the development of tribological polymer to give an accurate calculation.
Cage
two options is that the pivoting type can compensate for materials. Challenge us, talk to us about your applications, The predictability of xiros polymer ball bearings is one
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Balls shaft and/or bearing misalignment. A spherical outer race tell us what you need from a polymer ball bearing. In the of the most important advantages. Based on the results
is pressed into the bearing housing, ensuring self-aligning igus test laboratory the service life and wear of xiros of many wear tests, the user can calculate the service life
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action. If necessary, the inner bearing can be pivoted in polymer ball bearings are tested. In addition to the actual of xiros polymer ball bearings reliably and interpret the
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all directions. Possible misalignment of two bearing points material comparison, tests indicate these experiments also application.
The cage lying together can thus be compensated for. answer questions about the impact of external influences u www.igus-asean.com/xiros-expert
The material of the ball bearing cage must fit well to the such as temperature, humidity or dust.
application. The various material options have quite different Measurement requirement for injection-
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chemical and temperature resistance values. The cage moulded xiros polymer ball bearings
materials are compatible with all the different race options The outer race of our ball bearings has a conical shape.
within xiros . This simplifies the installation in a suitable housing (with the
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narrow side first). After press-fit into a housing machined to
The balls a H7 tolerance, the bearing clearance is reduced. Therefore
The ball materials differ most significantly. In addition to the bearings must be measured over the entire width of the
steel, glass or plastics are used. This produces a large ball bearing. Starting at an angle of 90° from the injection
difference in mass, which in turn affects quiet operation, point.
weight and media resistance. Stainless steel balls (1.4401)
are cost-effective, resistant to chemicals and suitable for
high temperatures, but are the heaviest in the range. Glass
balls (soda-lime glass) are also resistant to chemicals and igus extends the xiros test stand in the industry's
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have a medium weight. Just like polymer balls, they are largest test laboratory for plastics in motion
non-metallic and non-magnetic. In addition to their excellent
chemical resistance, the polymer balls (PAI) are even lighter
than stainless steel or glass balls. Download the online tool
app now

ASEAN 09/2023 ASEAN 09/2023

1028 Online tools and more information u www.igus-asean.com/xiros 3D CAD files, prices and delivery time online u www.igus-asean.com/xiros 1029