xiros® polymer ball bearingsy_catalogue EN
Lubrication-free polymer ball bearings
xiros® polymer ball bearings revolutionise the ball bearing market. Thanks to their maintenance- free dry operation and the use of xirodur® high performance polymers, many applications in which conventional metal ball bearings are inappropriate can be implemented successfully.
Anfragen
xiros® polymer ball bearings revolutionise the ball bearing market. Thanks to their maintenance- free dry operation and the use of xirodur® high performance polymers, many applications in which conventional metal ball bearings are inappropriate can be implemented successfully.
xiros®...
plastics for longer life®
... lubrication-free and cost-effective ...
New online service life calculator.
Service life now longer by up to a factor of 10
thanks to continuous further development
www.igus.eu/xiroslife
2
Change your
Metal
ball bearings
● Lubricant
● Corrosion
● Weight
● Friction losses
due to lubrication
and seal
bearings now!
Smooth-running
xiros® polymer
ball bearings
● Lubrication-
free
● Corrosion-free
● Low weight
●
Largest selection of
products in
stock
● Find online,
Calculate service
life and
order
Simply change now.
www.igus.eu/xiros
4
xiros® in field experience ...
5
More online www.igus.eu/xiros
6
Product overview ...
Standard:
PA cage
Cost-eective
and FDA-compliant:
B180 cage
FDA-compliant:
PE cage
With shield or labyrinth
seal:
LCC with B180 cage
Spherical outer diameter:
xirodur® B180
Spherical outer diameter
and detectable:
xirodur® M180
Double row for
larger loads:
xirodur® B180
Multi axis:
xirodur® B180,
PP cage
Low-weight design and
free of metal:
xirodur® A500,
PAI balls
ESD-compliant:
xirodur® F180,
PA cage
ESD-/ FDA-compliant:
xirodur® F180,
PE cage
High
speeds:
xirodur® D180, PA cage
Single row:
xirodur® B180
Glass or stainless steel balls
Double row:
xirodur® B180
Glass or stainless steel balls
Thrust washer:
xirodur® B180
Glass or stainless steel balls
Slewing ring bearing:
xirodur® B180,
Glass or stainless steel balls
Single flange:
xirodur® B180,
PA cage
with double flange:
xirodur® B180,
PA cage
ESD protection:
xirodur® F180,
PA cage
Guide roller:
Aluminium tube with flange
bearing
xiros® radial deep groove ball bearings – Standard product range
xiros® – other designs
xiros® axial bearings and slewing ring bearings
xiros® radial deep groove ball bearings – Standard product range
xiros® flange bearings and combinations
7
Find online ... igus.eu/xiros
Guide roller with
FDA-compliant
components
Guide roller:
Carbon tube with
flange bearing
Profiled/
torque resistant:
xirodur® B180
End caps:
xirodur® B180,
PA cage
Low wear:
xirodur® S180,
PA cage
High resistance to
chemicals:
xirodur® C160, PP cage
For high temperatures
up to +150 °C:
xirodur® A500, PA cage
For heat and chemicals:
xirodur® A500,
PEEK cage
Large roller:
xirodur® B180,
PA cage
With flange:
xirodur® B180,
stainless steel balls
Polymer ball transfer units:
xirodur® B180,
POM balls
Axial polymer
ball transfer units:
with spherical ball
Detectable:
xirodur® M180,
xirodur® M180 cage
For the tobacco industry:
xirodur® T220,
PP cage
For temperatures
up to +120 °C:
xirodur® G220, PP cage
Slewing ring bearing
with gear teeth or with
cage:
Stainless steel balls
Pillow block, fixed or
pivoting
4 holes flange bearing,
pivoting
2 holes flange bearing,
pivoting
xiros® radial deep groove ball bearings – Standard product range
xiros® combination with igubal®
xiros® – other designs
xiros® axial bearings and slewing ring bearings
xiros® radial deep groove ball bearings – Standard product range xiros® radial deep-groove ball bearings – further materials
xiros® flange bearings and combinations
New! New!
8
Benefits ...
Lubrication-free polymer ball bearings
xiros® polymer ball bearings revolutionise the
ball bearing market. Thanks to their main-
tenance-free dry operation and the use of
xirodur® high performance polymers, many ap-
plications in which conventional metal ball be-
arings are inappropriate can be implemented
successfully.
● Lubrication and maintenance-free
● Corrosion resistant
● Non metallic (due to the use of glass and
plastic balls), therefore non-magnetic
● For temperatures up to +150 °C
(depending on the material)
● High chemical resistance,
suitable for washdown
● Low weight
● Electrically insulating (or ESD-compliant)
● FDA-compliant (depending on material)
● Predictable service life
Typical application areas
● Packaging
● Textile industry
● Test engineering and quality assurance
● Optical industry
● Model making
Available from stock
Detailed information about delivery time online.
Block pricing online
No minimum order value. No minimum order
quantity.
max. +150 °C
min. -100 °C
9 xirodur® materials
Ø 3-60 mm
Imperial dimensions available
Service life calculator
uwww.igus.eu/xiros-expert
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Overview according to types ...
xiros® radial deep-groove ball bearings – Standard product range for 6 materials:
●xirodur® B180 – cost-eective standard
●xirodur® S180 – low wear
●xirodur® C160 – chemical resistant
●xirodur® A500 – for heat and chemicals
●xirodur® F180 – ESD-compliant
●xirodur® D180 – high speeds
●Standard DIN dimensions
xiros® radial deep-groove ball bearings –
further designs
●With spherical outer diameter
●Double row for higher loads
●Multi-bearing for radial and linear movements
xiros® radial deep-groove ball bearings –
Materials for special applications
●xirodur® M180 – detectable
●xirodur® T220 – for the tobacco industry
●xirodur® G220 – for temperatures up to +120 °C
xiros® axial bearings
●For absorbing axial loads
●xirodur® B180 with glass or stainless steel balls
xiros® flange bearings
●With flange on one or both sides
●Made from xirodur® B180 or F180
●xiros® System Solution: Aluminium tube with 2 flange
bearings
xiros® combination with igubal®
●Fixed or pivoting versions
● for maintenance-free use in conveyor belts and cam
rollers
xiros® slewing ring bearings
●With glass or stainless steel balls
●Outer toothed profile
●With cage
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Technical data ...
Radial deep groove ball bearings design
The xiros® polymer ball bearings are single-row
grooved ball bearings based on DIN 625. The
lubrication and maintenance-free ball bearings
consist of four components:
Outer race
Inner race
Cage
Balls
Development and tests
Through numerous tests the race materials were
optimised. The polymers we have developed
for use with ball bearings allow higher speeds,
greater loads, and longer service life. But the
development continues, we believe that polymer
ball bearing technology will continue to advance,
especially with our experience and development
with tribological polymer materials. Challenge
us, talk to us about your applications, tell us
what you need from a plastic ball bearing.
In the igus® test laboratory the life and wear
of xiros® polymer ball bearings are tested. In
addition to the actual material comparison, tests
indicate these experiments also answer questions
about the impact of external influences such as
temperature, humidity or dust.
The balls
The ball materials dier most significantly.
In addition to steel glass or plastics are used.
This produces a large dierence in mass, which
in turn aects smoothness, weight and chemical
resistance. Steel balls (stainless steel) are cost-
eective, chemical resistant, but with the highest
weight. Glass balls are used to give a non-metallic
solution. They are also very resistant to chemicals
and have an average weight. The igus® polymer
ball bearings made from PAI have significant
advantages in weight, size and quiet running
characteristics. They can have excellent chemical
resistance.
The cage
The material of the ball bearing cage must fit well
to the application. The various material options
have quite dierent chemical and temperature
resistance values. The cage materials are
compatible with all the different race options
within xiros®.
The outer and inner races
The suitability of a xiros® polymer ball bearings
is largely determined by the materials of the two
races. These are made from igus® Tribo polymers
to maximise service life and minimise friction.
Choice of 5 materials. They allow dierent values
of application temperature, chemical resistance
and price. The table of materials provides exact
information on this topic.
Pillow block and flange bearings
This range is made up by combining xiros®
polymer ball bearing with the igubal® pillow
block and flanged housings, resulting in a higher
flexibility in terms of installation of the bearings.
The pre-finished bearing housing make it easy
for the user to use these maintenance-free
components. Both flanged and pillow block
are available as fixed or as pivoting design.
The difference between the two options is
that the pivoting type can compensate for
shaft and/or bearing misalignment. A spherical
outer race is pressed into the bearing housing,
ensuring self aligning action. If necessary, the
inner bearing can be pivoted in all directions.
Possible misalignment of two bearing points lying
together can thus be compensated.
Other designs
xiros® radial deep groove ball bearings
The other designs include:
●Convex rollers which can run directly on a profile
●Castors
●Multi-bearings for linear and radial movements
●Flange bearings designed e.g. for installation
in tube ends
●Double row bearings for absorbing higher
forces
uwww.igus.eu/xiros-expert
NEW Online expert with service life
calculation with a new, even clearer and
more streamlined design. Download
online tool as app now.
Service life now longer than in the
previous service life calculation by a
factor of up to 10 thanks to continuous
further development. Quickly check online to see
whether a change is possible or lucrative, then,
after making a selection from the huge standard
product range, quickly order online.
NEW
11
igus® extends the xiros® test stand in the industry's largest test laboratory for plastics in motion
The predictability of xiros® polymer ball bearing
is one of the most important advantages. Based
on the results of many wear tests, the user can
calculate the service life of the xiros® polymer
ball bearing reliably and interpret the application.
Predictability
As part of the development of xiros® polymer ball
bearing tests are carried out continuously. The
high number of test results make it very dicult
to present this information in tabular form. It is for
this reason that igus® has developed the online
life calculator, which uses real test results to give
an accurate calculation.
xirodur®xirodur®igumid
B180 S180 C160 A500 F180 D180 M180 T220 G220 G
xirodur®xirodur®igumid
B180 S180 C160 A500 F180 D180 M180 T220 G220 G
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Technical data ...
Fitting Housing bore Shaft
Standard:
transition fit H7 h6
Recommendation of tolerance for hole and shaft
1) Only valid for xirodur® F180: the good conductivity of this material favours, under certain conditions, the corrosion generation on metallic parts.
2) Depending on the geometry
Table 01: Material data
+ resistant 0 limited resistance – not resistant
Table 02: Chemical resistance of xiros® materials
Detailed chemical resistance table for xiros® materials
For further questions about the dimensioning of the bore and the shaft please contact us.
General properties Unit
Density g/cm31.42 1.40 1.11 1.23 1.36 1.22 1.63 1.28 1.14 1.37
Colour white black opaque brown black blue blue beige grey black
Max. moisture absorption
at +23 °C/50 % r.h. % weight 0.2 0.2 0.1 0.1 0.2 0.5 0.2 0.3 2.1 1.4
Max. water absorption % weight 0.7 0.7 0.2 0.4 1.3 1.4 0.6 0.5 8.9 5.6
Mechanical properties
Flexural modulus MPa 2,500 2,700 1,900 4,300 1,600 135 2,500 1,800 3,000 7,800
Tensile strength at +20°C MPa 68 65 35 130 70 n. v. 68 65 n. v. 240
Shore-D hardness 77 78 67 85 79 48 77 76 n. v. 79
Electrical properties
Specific contact resistance1) Ωcm > 1014 > 1013 > 1014 > 1014 < 1012 2) > 1014 > 109> 1010 > 1013 > 1011
Surface resistance1) Ω> 1014 > 1013 > 1014 > 1014 < 101“ 2) > 1014 > 109> 1010 > 1012 > 1011
Thermal properties of
xiros® polymer ball bearings
Max. long-term application temperature °C +80 +80 +60 +150 +80 +80 +80 +100 +100 +120
Min. application temperatures (in combinati-
on with cage material) °C –40 -45 0 –100 (PEEK)
–40 (PA) –40 –50 –40 –40 –40 –40
Medium
Alcohol + + + + + + to 0 + + + +
Greases, oils without additives + + + + + + + + + +
Hydrocarbons + + + to 0 + + + + + + +
Fuels + + + to 0 + + + + + + +
Strong base + to 0 + to 0 + + + to 0 + to 0 + to 0 + to 0 + to 0 –
Strong acid – - + to 0 + – 0 – – – + to 0
Diluted base + + + + + + to 0 + + + 0 to –
Diluted acid 0 to – 0 to – + + 0 to – + to 0 0 to – 0 to – 0 to – +
xirodur®xirodur®igumid
B180 S180 C160 A500 F180 D180 M180 T220 G220 G
xirodur®xirodur®igumid
B180 S180 C160 A500 F180 D180 M180 T220 G220 G
13
Description Specification
ES: stainless steel 1.4401
GL: glass Soda-lime glass or borosilicate glass
PAI: Plastic Polyamide-imide
PP: Plastic Polypropylene
Ball material
General properties Unit
Density g/cm31.42 1.40 1.11 1.23 1.36 1.22 1.63 1.28 1.14 1.37
Colour white black opaque brown black blue blue beige grey black
Max. moisture absorption
at +23 °C/50 % r.h. % weight 0.2 0.2 0.1 0.1 0.2 0.5 0.2 0.3 2.1 1.4
Max. water absorption % weight 0.7 0.7 0.2 0.4 1.3 1.4 0.6 0.5 8.9 5.6
Mechanical properties
Flexural modulus MPa 2,500 2,700 1,900 4,300 1,600 135 2,500 1,800 3,000 7,800
Tensile strength at +20°C MPa 68 65 35 130 70 n. v. 68 65 n. v. 240
Shore-D hardness 77 78 67 85 79 48 77 76 n. v. 79
Electrical properties
Specific contact resistance1) Ωcm > 1014 > 1013 > 1014 > 1014 < 1012 2) > 1014 > 109> 1010 > 1013 > 1011
Surface resistance1) Ω> 1014 > 1013 > 1014 > 1014 < 101“ 2) > 1014 > 109> 1010 > 1012 > 1011
Thermal properties of
xiros® polymer ball bearings
Max. long-term application temperature °C +80 +80 +60 +150 +80 +80 +80 +100 +100 +120
Min. application temperatures (in combinati-
on with cage material) °C –40 -45 0 –100 (PEEK)
–40 (PA) –40 –50 –40 –40 –40 –40
Medium
Alcohol + + + + + + to 0 + + + +
Greases, oils without additives + + + + + + + + + +
Hydrocarbons + + + to 0 + + + + + + +
Fuels + + + to 0 + + + + + + +
Strong base + to 0 + to 0 + + + to 0 + to 0 + to 0 + to 0 + to 0 –
Strong acid – - + to 0 + – 0 – – – + to 0
Diluted base + + + + + + to 0 + + + 0 to –
Diluted acid 0 to – 0 to – + + 0 to – + to 0 0 to – 0 to – 0 to – +
xirodur®B180 S180 C160 A500 F180 D180 M180 T220 G220
PA B180 PE PA PP PA PEEK PA PE PA M180 PP PA
ES GL ES GL ES ES ES GL ES GL ES GL PAI ES ES ES ES ES ES
Selection guide ... ... according to property of material
Cage material
Ball material
Descriptive technical specifications
Lowest wear
Smooth running
Low moisture absorption
Chemically resistant
Seawater resistant
Dirt resistant
Higher temperatures
Higher speeds
Cost-eective
Approvals and standards
Contact with food
ESD compliant
Non-metallic
Detectable
Availabilities / variants
Radial deep groove ball
bearings
Flange bearings
End cap
Spherical outer
diameter
Double row
Slewing ring bearing
Axial-thrust bearings
xirodur®B180 S180 C160 A500 F180 D180 M180 T220 G220
PA B180 PE PA PP PA PEEK PA PE PA M180 PP PA
ES GL ES GL ES ES ES GL ES GL ES GL PAI ES ES ES ES ES ES
... according to property of material
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®
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deliveries weekdays from 7.00 am to 8.00 pm, Saturday from 8.00
am to 12.00 pm. No minimum order quantities, no surcharges.
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