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STD Polyurethane Open-Ended Timing Belts

STD polyurethane timing belts in STD profiles.

They are manufactured with the teeth and bottom from thermoplastic polyurethane with excellent wear resistance and with high tensile strength steel tension member, in special cases with kevlar or stainless steel tension member. The open-ended belts can be welded into endless belts.


Toot pitch (mm): 3.00
Thickness (mm): 2.40

Standard width (mm): 10; 15; 25; 50; 100


Tooth pitch (mm): 5.00
Thickness (mm): 3.70

Standard width (mm): 10; 15; 25; 50; 100


Tooth pitch (mm): 8.00
Thickness (mm): 5.60

Standard width (mm): 10; 15; 20; 30; 50; 85; 100


Tooth pitch (mm): 14.00
Thickness (mm): 10.00

Standard width (mm): 25; 40; 55; 85; 115; 150

Belts Construction

Open-Ended Polyurethane Timing Belt Structure

  1. Polyurethane teeth
  2. Steel cord tension member
  3. Polyurethane backing

Belts Fields of Use

Polyurethane timing belts are used in all areas, from miniature drives, high-precision positioning and sorting mechanisms, small handheld machines to high-performance drives for building and woodworking machines.

Belts Characteristics

  • High transmission power and long life
  • Resistant to oil, fuel, benzol, UV radiation and ozone
  • Wear-resistant
  • Temperature range, depending on application, from −30 °C to +80 °C
  • Maintenance-free

Belts Code Description

STD 8M - 20 CONTI SYNCHROLINE (Neoprene, Glass Cord)

Code Part Description



Tooth pitch in mm


Belt width in mm

CONTI SYNCHROLINE (Neoprene, Glass Cord)

Type of belt

Belts Versions

Type Description
HP High power tensile-strength
XHP Very high power tensile-strength
XHPII Extremely high power tensile-strength
HS High stiffness of tension member
HSII Very high stiffness of tension member
HF High flexibility
HP-Niro Stainless steel tension fibers
Aramid Aramid tension fibers

Optional Belt Surface Layers

The choice of the surface layer depends on the type of machine, the ambient temperature, the size of the pulleys, etc. Specifying the surface layer is determined by the material and the thickness of the layer.

Layer Name Material Layer Illustration
PAZ (NFT) - nylon fabric on teeth
Low coefficient of friction
Nylon PAZ (nylon fabric on teeth)
PAR (NFB) - nylon fabric on back
Surface protection
Nylon PAZ (nylon fabric on back)
PAZ + PAR (NFT + NFB) - fabric on teeth and back
Low coefficient of friction and surface protection
Nylon PAZ PAR (fabric on teeth and back)

The fabric on teeth and back can be combined with all other layers. A complete range of belt surface layers

Belts Colors

Open-Ended PU Belts Both in White and Black Color

The most common color of open-ended polyurethane belts with steel tension member is white. ContiTech also offers these belts in black.

Basic HP belts have the same characteristics as white belts. The color is the only difference. Black color is required for some applications due to its design or greater light fastness. White color changes over time - it turns yellow. In addition, any spots are more noticeable on white.

Reinforced types XHP, XHPII, HS and HSII are mostly produced by ContiTech only in black.

Documents for Download

Dimensions and Parameters of Polyurethane Open-Ended Timing Belts - Preview

Dimensions and Parameters of Polyurethane Open-Ended Timing Belts

TYMA CZ Data Sheets

Czech and English (PDF 447.48 kB)

Drive Belts - Preview

Drive Belts

TYMA CZ Catalogue

Czech and English (PDF 4.54 MB)

Calculation of STD S3M, S5M and S8M CONTI SYNCHRODRIVE Timing Belt Drives - Preview

Calculation of STD S3M, S5M and S8M CONTI SYNCHRODRIVE Timing Belt Drives

ContiTech Data Sheets

Czech and English (PDF 331.14 kB)



ContiTech Catalogue

English and German (PDF 4.88 MB)