xiros® polymer ball bearingsy_catalogue EN, Überblick



Beschreibung

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.


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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

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2

Change your

Metal

ball bearings

Lubricant

Corrosion

Weight

Friction losses

due to lubrication

and seal

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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

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4

xiros

®

in field experience ...

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5

More online

www.igus.eu/xiros

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6

Product overview ...

Standard:

PA cage

Cost-effective
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

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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!

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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

u

www.igus.eu/xiros-expert

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9

Overview according to types ...

xiros

®

radial deep-groove ball bearings – Standard product range for 6 materials:

xirodur

®

B180 – cost-effective 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 differ most significantly.
In addition to steel glass or plastics are used.
This produces a large difference in mass, which
in turn affects smoothness, weight and chemical
resistance. Steel balls (stainless steel) are cost-
effective, 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 different 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 different 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

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u

www.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 difficult
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.

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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

12

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/cm

3

1.42

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 resistance

1)

Ωcm

> 10

14

> 10

13

> 10

14

> 10

14

< 10

12    2)

> 10

14

> 10

9

> 10

10

> 10

13

> 10

11

Surface resistance

1)

Ω

> 10

14

> 10

13

> 10

14

> 10

14

< 10

1“    2)

> 10

14

> 10

9

> 10

10

> 10

12

> 10

11

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 –

+

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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/cm

3

1.42

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 resistance

1)

Ωcm

> 10

14

> 10

13

> 10

14

> 10

14

< 10

12    2)

> 10

14

> 10

9

> 10

10

> 10

13

> 10

11

Surface resistance

1)

Ω

> 10

14

> 10

13

> 10

14

> 10

14

< 10

1“    2)

> 10

14

> 10

9

> 10

10

> 10

12

> 10

11

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 –

+

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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-effective

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

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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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/24

/8pm

xiros

...

®

Orders can be placed until 8:00 pm local time. Ordering and
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.
Quick delivery.

www.igus.eu   Phone +49-2203 9649-0   Fax -222

Buy online – 24hrs !

More catalogues and brochures online –

www.igus.eu/downloads

Subject to technical alteration.  MAT0071427.20

igus

®

GmbH  Spicher Str. 1a  51147 Cologne

Tel. +49-2203-9649-800 Fax

+49-2203-9649-222

info@igus.eu www.igus.eu

© 2017  igus

®

GmbH