Synchronous Timing Belts

Common Tooth Profiles
Common tooth profiles for synchronous belts and pulleys are trapezoidal,
curvilinear, or modified curvilinear, referred to as:

PowerGrip® GT®2
The PowerGrip® GT®2 belt drive system and PowerGrip® GT®3 belt drive system are an advance in product design over Gates’ older standard HTD® system. The PowerGrip GT2 and PowerGrip GT3 systems, featuring modified curvilinear belt tooth profiles, provide timing and indexing accuracy superior to the conventional trapezoidal belt shape. Plus, PowerGrip GT2 and PowerGrip GT3 belts have a higher capacity and longer belt life than trapezoidal timing belts. Pulleys for these profiles are available from manufacturers licensed by Gates Rubber Company

SDP/SI is one of the companies that manufactures a full range of these pulleys, standard and custom.

Advantages of the GT2 and GT3 timing belt and pulley systems:

  • Longer belt life
  • Precision registration
  • Increased load-carrying capacity
  • Quieter operation
  • Precise positioning


Timing Belt Center Distance Designer

Get the right pulley and timing belt combination and instantly identify the appropriate part numbers that meet your specifications.

Timing Belt Design and Installation Suggestions:
General Guide Lines

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Product NameCatalog PDFBelt TypeBelt WidthMaterialNo. Of GroovesPitchPitch LengthTension MemberStockPriceQtyAdd to Cart
A 6B 3-020025 81002058.pdfSingle Sided0.25 InchPolyurethane20.200" (XL)4 InchKevlar 7
A 6B 3-020031 81002058.pdfSingle Sided0.3125 InchPolyurethane20.200" (XL)4 InchKevlar Call Us
A 6B 3-020037 81002058.pdfSingle Sided0.375 InchPolyurethane20.200" (XL)4 InchKevlar Call Us
A 6B 3-020050 81002058.pdfSingle Sided0.5 InchPolyurethane20.200" (XL)4 InchKevlar Call Us
A 6B 3-025025 81002058.pdfSingle Sided0.25 InchPolyurethane25.200" (XL)5 InchKevlar 20
A 6B 3-025031 81002058.pdfSingle Sided0.3125 InchPolyurethane25.200" (XL)5 InchKevlar Call Us
A 6B 3-025037 81002058.pdfSingle Sided0.375 InchPolyurethane25.200" (XL)5 InchKevlar Call Us
A 6B 3-025050 81002058.pdfSingle Sided0.5 InchPolyurethane25.200" (XL)5 InchKevlar Call Us
A 6B 3-030025 81002058.pdfSingle Sided0.25 InchPolyurethane30.200" (XL)6 InchKevlar Call Us
A 6B 3-030031 81002058.pdfSingle Sided0.3125 InchPolyurethane30.200" (XL)6 InchKevlar Call Us
A 6B 3-030037 81002058.pdfSingle Sided0.375 InchPolyurethane30.200" (XL)6 InchKevlar 193
A 6B 3-030050 81002058.pdfSingle Sided0.5 InchPolyurethane30.200" (XL)6 InchKevlar 22
A 6B 3-034025 81002058.pdfSingle Sided0.25 InchPolyurethane34.200" (XL)6.8 InchKevlar 25
A 6B 3-034031 81002058.pdfSingle Sided0.3125 InchPolyurethane34.200" (XL)6.8 InchKevlar Call Us
A 6B 3-034037 81002058.pdfSingle Sided0.375 InchPolyurethane34.200" (XL)6.8 InchKevlar 4
A 6B 3-034050 81002058.pdfSingle Sided0.5 InchPolyurethane34.200" (XL)6.8 InchKevlar Call Us
A 6B 3-035025 81002058.pdfSingle Sided0.25 InchPolyurethane35.200" (XL)7 InchKevlar 24
A 6B 3-035031 81002058.pdfSingle Sided0.3125 InchPolyurethane35.200" (XL)7 InchKevlar Call Us
A 6B 3-035037 81002058.pdfSingle Sided0.375 InchPolyurethane35.200" (XL)7 InchKevlar 16
A 6B 3-035050 81002058.pdfSingle Sided0.5 InchPolyurethane35.200" (XL)7 InchKevlar 9
A 6B 3-040025 81002058.pdfSingle Sided0.25 InchPolyurethane40.200" (XL)8 InchKevlar 12
A 6B 3-040031 81002058.pdfSingle Sided0.3125 InchPolyurethane40.200" (XL)8 InchKevlar Call Us
A 6B 3-040037 81002058.pdfSingle Sided0.375 InchPolyurethane40.200" (XL)8 InchKevlar 33
A 6B 3-040050 81002058.pdfSingle Sided0.5 InchPolyurethane40.200" (XL)8 InchKevlar Call Us
A 6B 3-041025 81002058.pdfSingle Sided0.25 InchPolyurethane41.200" (XL)8.2 InchKevlar Call Us
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