(03) 9464 2950 info@thyssing.com.au

Metal-Polymer Bearings

DP4®
Metal-Polymer Low Friction Plain Bearings

CHARACTERISTICS

  • DP4 low friction bushings offer good wear and low friction performance over a wide range of loads, speeds and temperatures in dry running conditions
  • Very good performance in lubricated applications
  • Good performance in greased applications
  • Suitable for linear, oscillating and rotating movements
  • Lead-free material compliant to EVL, WEEE, and RoHS specifications
  • Approved to standard DIN EN 1797: 2002-02 and ISO 21010: 2004-04 (Cryogenic Vessels – Gas/Material Compatibility) for piping, valves, fittings and other components in both gaseous and liquid oxygen for up to maximum temperature of 60°C and oxygen pressure of 25 bars. Contact GGB for further details.
  • Approved to standard FAR 25.853 and FAR 25.855 – Federal Aviation Regulations – making it suitable for interior aircraft applications 

Bearing forms available in standard dimensions

Cylindrical bushes                        Flanged bushes

Thrust washers                            Sliding plates

Bearing forms made to order: cylindrical bushes with non-standard lengths and wall thickness, flanged bearings, hexagonal and square bores, liner on outer diameter, customized bearing designs

STRUCTURE AND COMPOSITION

Metal-Polymer Composite Bushing Material 
Steel back + Porous  Bronze Sinter + PTFE + Fillers

 

MICROSECTION

GENERAL Unit Value Maximum load, p Static Dynamic psi psi 36 000 20 000 Operating temperature Min Max °F °F - 328 536 Coefficient of linear thermal expansion Parallel to the surface 10-6/F 6 Normal to the surface 10-6/F 17 DRY Maximum sliding speed, U fpm 500 Maximum pU factor psi x fpm 29 000 Coefficient of friction 0.04 - 0.25 * OIL LUBRICATED Maximum sliding speed, U fpm 1 000 Maximum pU factor psi x fpm 286 000 Coefficient of friction 0.02 - 0.08 RECOMMENDATIONS Shaft surface roughness, Ra Dry Lubricated µin µin 12 - 20 ≤ 2 - 16 * Shaft surface hardness Unhardened acceptable, improved bearing life > 200HB * Depending on operating conditions

OPERATING PERFORMANCE
Dry Poor
Oil lubricated Good
Grease lubricated Very Good
Water lubricated Poor
Process fluid lubricated Poor
FOR SUPERIOR PERFORMANCE
Dry GAR-MAX / HSG / GAR-FIL / MLG
Water lubricated HPM / HPF / DP4-B
Process fluid lubricated DP4 / HI-EX /
GAR-FIL

DX® bearing material is known by various names such as DX or DXR. Buying a DX® bearing from GGB or its authorized distributors guarantees that you do not receive a counterfeit product.  

     BEARING PROPERTIES

GENERAL   Unit Value
Maximum load, p

Static

Dynamic

N/mm2

N/mm2

250

140

Operating temperature

Min

Max

°C

°C

– 200

280

Coefficient of linear thermal expansion

Parallel to the surface

10-6/K

11

Normal to the surface 10-6/K 30
DRY      
Maximum sliding speed, U   m/s

2.5

Maximum pU factor  

N/mm2 x m/s

1.0

Coefficient of friction    

0.04 – 0.25 *

OIL LUBRICATED      
Maximum sliding speed, U   m/s

5.0

Maximum pU factor   N/mm2 x m/s

10.0

Coefficient of friction    

0.02 – 0.08

RECOMMENDATIONS      

Shaft surface roughness, Ra

Dry

Lubricated

µm

µm

0.3 – 0.5

 0.05 – 0.4 *

Shaft surface hardness

Unhardened acceptable, improved bearing life > 200HB

 

* Depending on operating conditions

   BEARING PROPERTIES

GENERAL   Unit Value
Maximum load, p

Static

Dynamic

psi

psi

36 000

20 000

Operating temperature

Min

Max

°F

°F

– 328

536

Coefficient of linear thermal expansion

Parallel to the surface

10-6/F

6

Normal to the surface 10-6/F 17
DRY      
Maximum sliding speed, U   fpm

500

Maximum pU factor  

psi x fpm

29 000

Coefficient of friction    

0.04 – 0.25 *

OIL LUBRICATED      
Maximum sliding speed, U   fpm

1 000

Maximum pU factor   psi x fpm

286 000

Coefficient of friction    

0.02 – 0.08

RECOMMENDATIONS      

Shaft surface roughness, Ra

Dry

Lubricated

µin

µin

12 – 20

≤ 2 – 16 *

Shaft surface hardness

Unhardened acceptable, improved bearing life > 200HB

 

* Depending on operating conditions

TYPICAL INDUSTRY APPLICATIONS

Agriculture

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Agriculture

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Agriculture

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Agriculture

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
,

Custom Lengths Available

Thyssing can supply custom lengths upto 410mm long free of charge.

R

Metric and Imperial Sizes

Both Metric and Imperial sizes are available to achieve the design requirements.

Australian Stock

Thyssing keep a wide range of stock here in Australia to reduce lead time for customers.

Low Maintenance

Garmax Bushes are Self lubricating so you can save time and money on maintenance.

We're here to help!

Please do not hesitate to contact us with any design enquiries. Our experienced engineers are ready to help you with any enquiries and are willing to assist you with support to make sure you get the right product for your application.

Phone

(03) 9464 2950

Address

33 Nevin Drive, Thomastown VIC 3074

}

Office Hours

M-F: 9AM - 5PM

Contact Us

Fill out the below contact form and our team will be in touch with your to assist with your enquiry.

5 + 3 =