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The High-Precision Short Pitch Roller Chains are engineered for demanding industrial applications requiring precise motion control and reliable power transmission. Manufactured with premium-grade alloy steel and heat-treated components, these chains feature a compact short pitch design that balances high tensile strength with smooth operation at high speeds. The precision-machined rollers and bushings minimize friction, ensuring consistent performance in automated production lines, conveyor systems, and heavy-duty machinery.
Precision Engineering: Laser-measured pitch accuracy (±0.05mm) and uniform roller alignment reduce vibration and noise in high-speed applications.
Wear-Resistant Construction: Shot-peened steel links, heat-treated bushings (60-65HRC), and nickel-plated rollers extend service life by 20% in abrasive environments.
High Load Capacity: Tensile strength ranging from 8kN to 80kN, supporting both light-duty conveyors and heavy industrial drives.
Temperature Resilience: Operates efficiently from -40°C to +180°C with optional heat-resistant lubrication for high-temperature environments.
ISO Compliance: Meets ISO 606 and ANSI B29.1 standards, ensuring interchangeability with global equipment manufacturers.
Automation Systems: Critical for robotic arm drives, CNC machine tool chains, and packaging line conveyors requiring zero-backlash motion.
Material Handling: Used in palletizers, elevators, and overhead cranes for reliable load transfer in warehouses and logistics centers.
Food & Beverage Industry: Hygienic stainless steel variants (304/316) comply with FDA standards for conveyor systems in processing plants.
Agricultural Machinery: Supports combine harvesters, irrigation systems, and feed processing equipment in harsh outdoor conditions.
Custom Solutions: Tailored pitch sizes (3.175mm to 25.4mm) and special coatings (PTFE, DLC) for unique application requirements.
Quality Assurance: 100% non-destructive testing (NDT) for tensile strength and dimensional accuracy, backed by a 2-year warranty.
Global Delivery: Stock availability for standard chains (24-hour shipment) and fast turnaround for custom orders (4-6 weeks lead time).
Technical Support: Dedicated engineering team provides CAD models, installation guides, and on-site maintenance training.
SHORT PITCH PRECISION ROLLER CHAINS (A SERIES)-Duplex roller chains & bushing chains
The structure of the double-row roller chain is relatively simple, and the installation and disassembly process does not need to move the connected two axes, which is convenient for maintenance and replacement， consists of two rows of parallel rollers mounted between the inner and the outer chain plates and connected by a pin shaft. This structure helps to reduce the friction and improve the transmission efficiency.
| DIN/ISO CHAIN NO. | ANSI CHAIN NO. | Pitch | Roller diameter | Width between inner plates | Pin diameter | Pin length | Inner plate depth | Plate thickness | Transverse pitch | Ultimate tensile strength | Average tensile strength | Weight per meter | |
| DIN/ISO Cadena No | ANSI Cadena No | Paso | Diámetro rodillo | Ancho interior | Diámetro pasador | Longitud pasador | Altura placas | Ancho placas | Paso transversal | Resis. rotura | Resis. media tracción | Peso por metro | |
| P | d1 max | b1 min | d2 max | L max | Lc max | h2 max | T max | Pt | Q min | Qo | q | ||
| mm | mm | mm | mm | mm | mm | mm | mm | mm | kN/LB | KN | kg/m | ||
| *04C-2 | *25-2 | 6.350 | 3.30 | 3.18 | 2.31 | 14.5 | 15.0 | 6.00 | 0.80 | 6.40 | 7.00/1591 | 8.6 | 0.28 |
| *06C-2 | *35-2 | 9.525 | 5.08 | 4.77 | 3.58 | 22.5 | 23.3 | 9.00 | 1.30 | 10.13 | 15.80/3591 | 19.7 | 0.63 |
| 085-2 | 41-2 | 12.700 | 7.77 | 6.25 | 3.58 | 25.7 | 26.9 | 9.91 | 1.30 | 11.95 | 13.34/3032 | 16.9 | 0.81 |
| 08A-2 | 40-2 | 12.700 | 7.95 | 7.85 | 3.96 | 31.0 | 32.2 | 12.00 | 1.50 | 14.38 | 28.20/6409 | 35.9 | 1.12 |
| 10A-2 | 50-2 | 15.875 | 10.16 | 9.40 | 5.08 | 38.9 | 40.4 | 15.09 | 2.03 | 18.11 | 44.40/10091 | 58.1 | 2.00 |
| 12A-2 | 60-2 | 19.050 | 11.91 | 12.57 | 5.94 | 48.8 | 50.5 | 18.00 | 2.42 | 22.78 | 63.60/14455 | 82.1 | 2.92 |
| 16A-2 | 80-2 | 25.400 | 15.88 | 15.75 | 7.92 | 62.7 | 64.3 | 24.00 | 3.25 | 29.29 | 133.40/25773 | 141.8 | 5.15 |
| 20A-2 | 100-2 | 31.750 | 19.05 | 18.90 | 9.53 | 76.4 | 80.5 | 30.00 | 4.00 | 35.76 | 177.00/40227 | 219.4 | 7.80 |
| 24A-2 | 120-2 | 38.100 | 22.23 | 25.22 | 11.10 | 95.8 | 99.7 | 35.70 | 4.80 | 45.44 | 254.00/57727 | 314.9 | 11.70 |
| 28A-2 | 140-2 | 44.450 | 25.40 | 25.22 | 12.70 | 103.3 | 107.9 | 41.00 | 5.60 | 48.87 | 344.80/78364 | 427.5 | 15.14 |
| 32A-2 | 160-2 | 50.800 | 28.58 | 31.55 | 14.27 | 123.3 | 128.1 | 47.80 | 6.40 | 58.55 | 453.60/103091 | 562.4 | 20.14 |
| 36A-2 | 180-2 | 57.150 | 35.71 | 35.48 | 17.46 | 138.6 | 144.4 | 53.60 | 7.20 | 65.84 | 560.50/127386 | 695.0 | 29.22 |
| 40A-2 | 200-2 | 63.500 | 39.68 | 37.85 | 19.85 | 151.9 | 158.8 | 60.00 | 8.00 | 71.55 | 707.60/160818 | 877.4 | 32.24 |
| 48A-2 | 240-2 | 76.200 | 47.63 | 47.35 | 23.81 | 183.4 | 190.8 | 72.39 | 9.50 | 87.83 | 1020.60/213955 | 1255.3 | 45.23 |
The High-Precision Short Pitch Roller Chains are engineered for demanding industrial applications requiring precise motion control and reliable power transmission. Manufactured with premium-grade alloy steel and heat-treated components, these chains feature a compact short pitch design that balances high tensile strength with smooth operation at high speeds. The precision-machined rollers and bushings minimize friction, ensuring consistent performance in automated production lines, conveyor systems, and heavy-duty machinery.
Precision Engineering: Laser-measured pitch accuracy (±0.05mm) and uniform roller alignment reduce vibration and noise in high-speed applications.
Wear-Resistant Construction: Shot-peened steel links, heat-treated bushings (60-65HRC), and nickel-plated rollers extend service life by 20% in abrasive environments.
High Load Capacity: Tensile strength ranging from 8kN to 80kN, supporting both light-duty conveyors and heavy industrial drives.
Temperature Resilience: Operates efficiently from -40°C to +180°C with optional heat-resistant lubrication for high-temperature environments.
ISO Compliance: Meets ISO 606 and ANSI B29.1 standards, ensuring interchangeability with global equipment manufacturers.
Automation Systems: Critical for robotic arm drives, CNC machine tool chains, and packaging line conveyors requiring zero-backlash motion.
Material Handling: Used in palletizers, elevators, and overhead cranes for reliable load transfer in warehouses and logistics centers.
Food & Beverage Industry: Hygienic stainless steel variants (304/316) comply with FDA standards for conveyor systems in processing plants.
Agricultural Machinery: Supports combine harvesters, irrigation systems, and feed processing equipment in harsh outdoor conditions.
Custom Solutions: Tailored pitch sizes (3.175mm to 25.4mm) and special coatings (PTFE, DLC) for unique application requirements.
Quality Assurance: 100% non-destructive testing (NDT) for tensile strength and dimensional accuracy, backed by a 2-year warranty.
Global Delivery: Stock availability for standard chains (24-hour shipment) and fast turnaround for custom orders (4-6 weeks lead time).
Technical Support: Dedicated engineering team provides CAD models, installation guides, and on-site maintenance training.
SHORT PITCH PRECISION ROLLER CHAINS (A SERIES)-Duplex roller chains & bushing chains
The structure of the double-row roller chain is relatively simple, and the installation and disassembly process does not need to move the connected two axes, which is convenient for maintenance and replacement， consists of two rows of parallel rollers mounted between the inner and the outer chain plates and connected by a pin shaft. This structure helps to reduce the friction and improve the transmission efficiency.
| DIN/ISO CHAIN NO. | ANSI CHAIN NO. | Pitch | Roller diameter | Width between inner plates | Pin diameter | Pin length | Inner plate depth | Plate thickness | Transverse pitch | Ultimate tensile strength | Average tensile strength | Weight per meter | |
| DIN/ISO Cadena No | ANSI Cadena No | Paso | Diámetro rodillo | Ancho interior | Diámetro pasador | Longitud pasador | Altura placas | Ancho placas | Paso transversal | Resis. rotura | Resis. media tracción | Peso por metro | |
| P | d1 max | b1 min | d2 max | L max | Lc max | h2 max | T max | Pt | Q min | Qo | q | ||
| mm | mm | mm | mm | mm | mm | mm | mm | mm | kN/LB | KN | kg/m | ||
| *04C-2 | *25-2 | 6.350 | 3.30 | 3.18 | 2.31 | 14.5 | 15.0 | 6.00 | 0.80 | 6.40 | 7.00/1591 | 8.6 | 0.28 |
| *06C-2 | *35-2 | 9.525 | 5.08 | 4.77 | 3.58 | 22.5 | 23.3 | 9.00 | 1.30 | 10.13 | 15.80/3591 | 19.7 | 0.63 |
| 085-2 | 41-2 | 12.700 | 7.77 | 6.25 | 3.58 | 25.7 | 26.9 | 9.91 | 1.30 | 11.95 | 13.34/3032 | 16.9 | 0.81 |
| 08A-2 | 40-2 | 12.700 | 7.95 | 7.85 | 3.96 | 31.0 | 32.2 | 12.00 | 1.50 | 14.38 | 28.20/6409 | 35.9 | 1.12 |
| 10A-2 | 50-2 | 15.875 | 10.16 | 9.40 | 5.08 | 38.9 | 40.4 | 15.09 | 2.03 | 18.11 | 44.40/10091 | 58.1 | 2.00 |
| 12A-2 | 60-2 | 19.050 | 11.91 | 12.57 | 5.94 | 48.8 | 50.5 | 18.00 | 2.42 | 22.78 | 63.60/14455 | 82.1 | 2.92 |
| 16A-2 | 80-2 | 25.400 | 15.88 | 15.75 | 7.92 | 62.7 | 64.3 | 24.00 | 3.25 | 29.29 | 133.40/25773 | 141.8 | 5.15 |
| 20A-2 | 100-2 | 31.750 | 19.05 | 18.90 | 9.53 | 76.4 | 80.5 | 30.00 | 4.00 | 35.76 | 177.00/40227 | 219.4 | 7.80 |
| 24A-2 | 120-2 | 38.100 | 22.23 | 25.22 | 11.10 | 95.8 | 99.7 | 35.70 | 4.80 | 45.44 | 254.00/57727 | 314.9 | 11.70 |
| 28A-2 | 140-2 | 44.450 | 25.40 | 25.22 | 12.70 | 103.3 | 107.9 | 41.00 | 5.60 | 48.87 | 344.80/78364 | 427.5 | 15.14 |
| 32A-2 | 160-2 | 50.800 | 28.58 | 31.55 | 14.27 | 123.3 | 128.1 | 47.80 | 6.40 | 58.55 | 453.60/103091 | 562.4 | 20.14 |
| 36A-2 | 180-2 | 57.150 | 35.71 | 35.48 | 17.46 | 138.6 | 144.4 | 53.60 | 7.20 | 65.84 | 560.50/127386 | 695.0 | 29.22 |
| 40A-2 | 200-2 | 63.500 | 39.68 | 37.85 | 19.85 | 151.9 | 158.8 | 60.00 | 8.00 | 71.55 | 707.60/160818 | 877.4 | 32.24 |
| 48A-2 | 240-2 | 76.200 | 47.63 | 47.35 | 23.81 | 183.4 | 190.8 | 72.39 | 9.50 | 87.83 | 1020.60/213955 | 1255.3 | 45.23 |
