Gates Timing Belts
Texas Belting is an authorized distributor of Gates industrial timing belts. We stock the full range of Gates synchronous belt product lines, including PowerGrip HTD, PowerGrip GT3, Poly Chain GT Carbon, and trapezoidal profiles in all standard pitches and widths. Gates timing belts are the industry benchmark for power transmission reliability, and Texas Belting provides same-day shipping on stocked sizes from our Houston warehouse.
Gates Timing Belt Product Families
Gates manufactures timing belts under several product family names. Each family uses a specific tooth profile and is designed for a different performance tier. Understanding which family you need ensures the right combination of load capacity, accuracy, and service life for your drive.
PowerGrip HTD
The PowerGrip HTD line is Gates' standard curvilinear timing belt series. HTD (High Torque Drive) belts use a semi-circular tooth profile that delivers significantly higher load capacity and smoother operation than trapezoidal belts. PowerGrip HTD belts are constructed with a neoprene (chloroprene rubber) body and fiberglass tensile cords.
- Available pitches: 3M, 5M, 8M, 14M
- Body material: Neoprene with nylon tooth facing
- Tensile cord: Fiberglass (standard)
- Temperature range: -30°F to +185°F
- Best for: General industrial drives, conveyors, packaging, pumps, compressors, machine tools
PowerGrip HTD belts are the most widely specified Gates timing belt for general industrial applications. The 5M and 8M pitches account for the majority of industrial installations.
PowerGrip GT3
PowerGrip GT3 is Gates' premium curvilinear timing belt, featuring an optimized tooth geometry that improves on the standard HTD design. GT3 belts provide near-zero backlash, more uniform load sharing across meshing teeth, and up to 25% higher load capacity than standard HTD at the same pitch size.
- Available pitches: 2M, 3M, 5M, 8M, 14M
- Body material: HNBR (Hydrogenated Nitrile Butadiene Rubber)
- Tensile cord: Fiberglass (standard)
- Temperature range: -65°F to +250°F
- Best for: Servo drives, CNC machines, precision indexing, robotics, high-accuracy positioning, applications requiring minimal backlash
The HNBR compound used in GT3 belts provides a wider temperature range and better chemical resistance than the neoprene used in standard PowerGrip HTD belts. GT3 is the recommended upgrade path for any drive where positioning accuracy, noise reduction, or extended service life is a priority.
Poly Chain GT Carbon
Poly Chain GT Carbon is Gates' highest-performance timing belt product line. It uses a polyurethane body reinforced with carbon fiber tensile cords instead of fiberglass. This construction delivers load ratings that can match or exceed roller chain drives in many applications, while eliminating the need for lubrication.
- Available pitches: 8M (8MGT), 14M (14MGT)
- Body material: Polyurethane with carbon fiber tensile cord
- Temperature range: -65°F to +185°F
- Key advantages over chain: No lubrication required, quieter operation, lighter weight, longer service life, cleaner running environment
- Best for: Heavy industrial drives, chain-drive replacements, food processing (no lubrication contamination), high-torque applications, pumps, compressors, heavy conveyors
Poly Chain GT Carbon belts are a direct replacement for ANSI roller chain in many applications. If you are evaluating a chain-to-belt conversion, Texas Belting can help you cross-reference your current chain drive to the correct Poly Chain size. Call 888-203-2358 for conversion assistance.
PowerGrip Trapezoidal
Gates' trapezoidal timing belts use the classic straight-sided tooth design found in a wide range of legacy and current industrial equipment. These belts are available in all standard imperial pitches and are constructed with a neoprene body and fiberglass cords.
- Available pitches: MXL, XL, L, H, XH, XXH
- Body material: Neoprene with nylon tooth facing
- Tensile cord: Fiberglass (standard)
- Temperature range: -30°F to +185°F
- Best for: Replacement in existing trapezoidal drives, light to medium duty industrial, general conveyance, office and business equipment, OEM machinery
XL and L are the two most commonly stocked trapezoidal pitches. Texas Belting carries the full Gates trapezoidal catalog across all pitches and standard widths.
How to Read a Gates Timing Belt Part Number
Gates uses a consistent part number format across its timing belt lines. Understanding the format helps you confirm you are ordering the correct belt.
| Product Family | Part Number Format | Example | Decoded |
|---|---|---|---|
| PowerGrip HTD | [Pitch Length]-[Pitch]M-[Width] | 560-8M-20 | 560 mm pitch length, 8 mm HTD pitch, 20 mm wide |
| PowerGrip GT3 | [Pitch]MGT-[Pitch Length]-[Width] | 8MGT-640-36 | 8 mm GT3 pitch, 640 mm pitch length, 36 mm wide |
| Poly Chain GT Carbon | [Pitch]MGT-[Pitch Length]-[Width] | 8MGT-1120-21 | 8 mm Poly Chain pitch, 1120 mm pitch length, 21 mm wide |
| Trapezoidal (XL) | [Pitch Length (tenths of inch)][Profile][Width (hundredths of inch)] | 170XL037 | 17.0" pitch length, XL profile, 3/8" (0.375") wide |
| Trapezoidal (L) | [Pitch Length (tenths of inch)][Profile][Width (hundredths of inch)] | 300L075 | 30.0" pitch length, L profile, 3/4" (0.75") wide |
| Trapezoidal (H) | [Pitch Length (tenths of inch)][Profile][Width (hundredths of inch)] | 700H100 | 70.0" pitch length, H profile, 1" wide |
Gates Timing Belt Pitch and Profile Coverage
This table shows which Gates product families are available at each pitch size, along with the standard width range and typical load class.
| Pitch | Profile Type | Gates Product Family | Standard Width Range | Load Class |
|---|---|---|---|---|
| 2 mm | Curvilinear (GT) | PowerGrip GT3 | 6 mm to 9 mm | Miniature |
| 3 mm | Curvilinear (HTD/GT) | PowerGrip HTD / PowerGrip GT3 | 6 mm to 15 mm | Light |
| 5 mm | Curvilinear (HTD/GT) | PowerGrip HTD / PowerGrip GT3 | 9 mm to 25 mm | Light to Medium |
| 8 mm | Curvilinear (HTD/GT/Carbon) | PowerGrip HTD / PowerGrip GT3 / Poly Chain GT Carbon | 15 mm to 85 mm | Medium to Heavy |
| 14 mm | Curvilinear (HTD/GT/Carbon) | PowerGrip HTD / PowerGrip GT3 / Poly Chain GT Carbon | 40 mm to 170 mm | Heavy to Maximum |
| 0.080" (MXL) | Trapezoidal | PowerGrip Trapezoidal | 1/8" to 1/4" | Miniature |
| 1/5" (XL) | Trapezoidal | PowerGrip Trapezoidal | 1/4" to 1" | Light |
| 3/8" (L) | Trapezoidal | PowerGrip Trapezoidal | 1/2" to 2" | Medium |
| 1/2" (H) | Trapezoidal | PowerGrip Trapezoidal | 3/4" to 3" | Heavy |
| 7/8" (XH) | Trapezoidal | PowerGrip Trapezoidal | 2" to 4" | Extra Heavy |
| 1-1/4" (XXH) | Trapezoidal | PowerGrip Trapezoidal | 2" to 5" | Maximum |
Choosing the Right Gates Product Family
Gates offers multiple product families at overlapping pitch sizes, so selecting the right one depends on your application requirements beyond just torque and speed.
| Application Need | Recommended Gates Family | Why |
|---|---|---|
| General industrial, standard drives, cost-effective | PowerGrip HTD | Proven reliability, wide inventory, economical. The default choice for most drives. |
| Precision positioning, servo, CNC, low backlash | PowerGrip GT3 | Near-zero backlash, optimized tooth engagement, HNBR compound for wider temperature range. |
| Maximum load, chain replacement, no-lubrication | Poly Chain GT Carbon | Carbon fiber cord delivers chain-level loads without lubrication, noise, or weight. |
| Legacy trapezoidal equipment, direct replacement | PowerGrip Trapezoidal | Match existing XL, L, H, XH, or XXH pulleys. Do not mix with curvilinear pulleys. |
| High temperature (above 185°F) | PowerGrip GT3 (HNBR) | HNBR compound rated to 250°F versus 185°F for standard neoprene HTD belts. |
| Extended belt life, reduced downtime | PowerGrip GT3 or Poly Chain GT Carbon | Both offer longer service life than standard HTD due to improved materials and tooth design. |
| Food processing, washdown, FDA | Poly Chain GT Carbon (no lubrication) or urethane alternative | Poly Chain eliminates chain lubrication contamination. For FDA-contact applications, specify urethane timing belts. |
Gates Cross-Reference to Other Brands
Texas Belting cross-references Gates timing belt part numbers to equivalent belts from Continental (ContiTech), Bando, Megadyne, and Diesel Belting. If you have a Gates part number and need an equivalent, or if you have a competitor part number and want the Gates equivalent, contact us for a cross-reference.
| Gates Product Family | Continental Equivalent | Bando Equivalent | Megadyne Equivalent |
|---|---|---|---|
| PowerGrip HTD (5M, 8M, 14M) | Synchrobelt HTD | Synchro-Link HTD | Isoran / RPP |
| PowerGrip GT3 | Synchroforce CXP / CTD | Synchro-Link STS | RPP Gold / Megalinear |
| Poly Chain GT Carbon | No direct equivalent | No direct equivalent | No direct equivalent |
| PowerGrip Trapezoidal (XL, L, H) | Synchrobelt (XL, L, H) | Synchro-Link (XL, L, H) | Isoran (XL, L, H) |
Common Applications for Gates Timing Belts
| Industry / Application | Recommended Gates Family | Typical Pitch |
|---|---|---|
| Packaging equipment | PowerGrip HTD or GT3 | 5M, 8M |
| Conveyors (general industrial) | PowerGrip HTD | 5M, 8M, L |
| CNC machines and machine tools | PowerGrip GT3 | 3M, 5M, 8M |
| Servo drives and robotics | PowerGrip GT3 | 2M, 3M, 5M |
| Printing and paper handling | PowerGrip HTD or GT3 | 5M, L |
| Pumps and compressors | PowerGrip HTD or Poly Chain GT Carbon | 8M, 14M |
| Food processing (no-lube requirement) | Poly Chain GT Carbon | 8M, 14M |
| Chain-drive replacement | Poly Chain GT Carbon | 8M, 14M |
| Textile machinery | PowerGrip HTD | 5M, 8M |
| 3D printers and small automation | PowerGrip GT3 (GT2 compatible) | 2M |
| Mining and heavy industry | Poly Chain GT Carbon or PowerGrip HTD | 14M |
Frequently Asked Questions
Yes. Texas Belting is an authorized distributor of Gates industrial power transmission products, including the full line of PowerGrip HTD, PowerGrip GT3, Poly Chain GT Carbon, and trapezoidal timing belts. We stock thousands of Gates belt sizes in our Houston warehouse for same-day shipping.
Both use curvilinear tooth profiles, but GT3 features an optimized tooth geometry that provides near-zero backlash, more uniform load sharing, and up to 25% higher load capacity at the same pitch. GT3 belts also use HNBR rubber (rated to 250°F) versus neoprene (rated to 185°F) in standard HTD belts. GT3 is the recommended choice for servo drives, CNC, and any application where precision and extended belt life are priorities. For a detailed comparison, see our Tooth Profiles Explained guide.
Yes. Poly Chain GT Carbon belts are specifically designed as a chain-drive alternative for many industrial applications. They offer comparable load capacity to ANSI roller chain without requiring lubrication, and they run quieter, weigh less, and last longer in many installations. Texas Belting can help you cross-reference your current chain size to the correct Poly Chain belt and pulley combination. Call 888-203-2358 for chain-to-belt conversion assistance.
Gates GT3 belts can physically engage standard HTD pulleys in many cases, but the tooth-to-groove fit will not be optimal. Running GT3 on HTD pulleys increases backlash and reduces the precision and load capacity advantages of the GT3 design. For best performance, especially in servo and positioning applications, always use matched GT3 pulleys with GT3 belts. In non-critical general industrial applications, running GT3 on HTD pulleys is generally acceptable.
Send us your Gates part number by phone at 888-203-2358 or through our contact form. We cross-reference Gates numbers to Continental, ContiTech, Bando, Megadyne, Diesel Belting, and OEM-specific part numbers. We can also go the other direction, finding the correct Gates equivalent for a competitor part number.
Yes. Texas Belting maintains a large inventory of Gates timing belts across all major product families and standard sizes at our Houston warehouse. In-stock items ship same day when ordered before the daily cutoff. For non-stock or specialty sizes, typical lead time is 3 to 5 business days. Call 888-203-2358 to check availability on a specific part number.
For food processing applications where the primary concern is eliminating chain lubrication contamination, Gates Poly Chain GT Carbon is an excellent choice because it requires no lubrication. For applications where the belt directly contacts food and must meet FDA or USDA material requirements, an FDA-approved polyurethane timing belt is required. Gates' standard neoprene and HNBR timing belts are not FDA-approved for direct food contact. Contact Texas Belting at 888-203-2358 to discuss your specific food processing requirements.
Related Pages
Need a Gates Timing Belt?
Texas Belting stocks the full range of Gates PowerGrip HTD, GT3, Poly Chain GT Carbon, and trapezoidal timing belts. Send us your Gates part number for fast quoting, or describe your application and we will recommend the right belt.
Request a Quote Call 888-203-2358