Descrizione
EP-Cottered Type Short Pitch Precision Roller Chain | Advanced Power Transmission Solutions
Professional-grade cottered type roller chain engineered for reliable mechanical power transmission across industrial applications throughout Colombian manufacturing operations.
The cottered type roller chain represents a fundamental mechanical power transmission component engineered to reliably transfer rotational force between parallel shafts across diverse industrial applications. Unlike conventional riveted chain designs, the cottered type roller chain incorporates precision-engineered cotter pins enabling convenient disassembly and maintenance without requiring specialized tools or facility damage to surrounding equipment. The short pitch precision roller chain configuration delivers exceptional load-carrying capacity while maintaining compact dimensions suitable for space-constrained machinery installations. Modern cottered type roller chain manufacturing emphasizes precise tolerance control throughout all dimensions, ensuring consistent engagement with compatible sprocket systems and extending operational service life under demanding industrial duty cycles. The roller chain construction incorporates hardened steel rollers, plates, and connecting elements manufactured to international standards, providing reliable performance across temperature ranges and environmental conditions characteristic of Colombian facility operations.
1. Technical Specifications of Cottered type roller chain
| ISO/ANSI/DN Chain No. | YHK Chain No. | Pitch P (mm) | Roller diameter d1 max (mm) | Width between inner plates b1 min (mm) | Pin diameter d2 max (mm) | Pin length Lc max (mm) | Inner plate depth h2 max (mm) | Plate thickness T max (mm) | Transverse pitch Pt (mm) | Tensile strength Q min (kN/bf) | Average tensile strength Qo (kN) | Weight per meter q (kg/m) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50-1 | 10A-1 | 15.875 | 10.16 | 9.40 | 5.08 | 23.3 | 15.09 | 2.03 | – | 22.2/5045 | 29.4 | 1.02 |
| 60-1 | 12A-1 | 19.050 | 11.91 | 12.57 | 5.94 | 28.3 | 18.00 | 2.42 | – | 31.8/7227 | 41.5 | 1.50 |
| 80-1 | 16A-1 | 25.400 | 15.88 | 15.75 | 7.92 | 36.5 | 24.00 | 3.25 | – | 56.7/12886 | 69.4 | 2.60 |
| 100-1 | 20A-1 | 31.750 | 19.05 | 18.90 | 9.53 | 44.7 | 30.00 | 4.00 | – | 88.5/20114 | 109.2 | 3.91 |
| 120-1 | 24A-1 | 38.100 | 22.23 | 25.22 | 11.10 | 54.3 | 35.70 | 4.80 | – | 127.0/28864 | 156.3 | 5.62 |
| 140-1 | 28A-1 | 44.450 | 25.40 | 25.22 | 12.70 | 59.0 | 41.00 | 5.60 | – | 172.4/39182 | 212.0 | 7.50 |
| 160-1 | 32A-1 | 50.800 | 28.58 | 31.55 | 14.27 | 69.6 | 47.80 | 6.40 | – | 226.8/51545 | 278.9 | 10.10 |
| 180-1 | 36A-1 | 57.150 | 35.71 | 35.48 | 17.46 | 78.6 | 53.60 | 7.20 | – | 280.2/63682 | 341.8 | 13.45 |
| 200-1 | 40A-1 | 63.500 | 39.68 | 37.85 | 19.85 | 87.2 | 60.00 | 8.00 | – | 353.8/80409 | 431.6 | 16.15 |
| 240-1 | 48A-1 | 76.200 | 47.63 | 47.35 | 23.81 | 103.0 | 72.39 | 9.50 | – | 510.3/115977 | 622.5 | 23.20 |
| 50-2 | 10A-2 | 15.875 | 10.16 | 9.40 | 5.08 | 41.2 | 15.09 | 2.03 | 18.11 | 44.4/10091 | 58.1 | 2.00 |
| 60-2 | 12A-2 | 19.050 | 11.91 | 12.57 | 5.94 | 51.1 | 18.00 | 2.42 | 22.78 | 63.6/14455 | 82.1 | 2.92 |
| 80-2 | 16A-2 | 25.400 | 15.88 | 15.75 | 7.92 | 65.8 | 24.00 | 3.25 | 29.29 | 113.4/25773 | 141.8 | 5.15 |
| 100-2 | 20A-2 | 31.750 | 19.05 | 18.90 | 9.53 | 80.5 | 30.00 | 4.00 | 35.76 | 177.0/40227 | 219.4 | 7.80 |
| 120-2 | 24A-2 | 38.100 | 22.23 | 25.22 | 11.10 | 99.7 | 35.70 | 4.80 | 45.44 | 254.0/57727 | 314.9 | 11.70 |
| 140-2 | 28A-2 | 44.450 | 25.40 | 25.22 | 12.70 | 107.9 | 41.00 | 5.60 | 48.87 | 344.8/78364 | 427.5 | 15.14 |
| 160-2 | 32A-2 | 50.800 | 28.58 | 31.55 | 14.27 | 128.1 | 47.80 | 6.40 | 58.55 | 453.6/103091 | 562.4 | 20.14 |
| 180-2 | 36A-2 | 57.150 | 35.71 | 35.48 | 17.46 | 144.4 | 53.60 | 7.20 | 65.84 | 560.5/127386 | 695.0 | 29.22 |
| 200-2 | 40A-2 | 63.500 | 39.68 | 37.85 | 19.85 | 158.8 | 60.00 | 8.00 | 71.55 | 707.6/160818 | 877.4 | 32.24 |
| 240-2 | 48A-2 | 76.200 | 47.63 | 47.35 | 23.81 | 190.8 | 72.39 | 9.50 | 87.83 | 1020.6/231955 | 1255.3 | 45.23 |
| 50-3 | 10A-3 | 15.875 | 10.16 | 9.40 | 5.08 | 59.3 | 15.09 | 2.03 | 18.11 | 66.6/15136 | 77.8 | 3.09 |
| 60-3 | 12A-3 | 19.050 | 11.91 | 12.57 | 5.94 | 73.9 | 18.00 | 2.42 | 22.78 | 95.4/21682 | 111.1 | 4.54 |
| 80-3 | 16A-3 | 25.400 | 15.88 | 15.75 | 7.92 | 95.1 | 24.00 | 3.25 | 29.29 | 170.1/38659 | 198.4 | 7.89 |
| 100-3 | 20A-3 | 31.750 | 19.05 | 18.90 | 9.53 | 116.3 | 30.00 | 4.00 | 35.76 | 265.5/60341 | 309.6 | 11.77 |
| 120-3 | 24A-3 | 38.100 | 22.23 | 25.22 | 11.10 | 145.2 | 35.70 | 4.80 | 45.44 | 381.0/86591 | 437.2 | 17.53 |
| 140-3 | 28A-3 | 44.450 | 25.40 | 25.22 | 12.70 | 156.8 | 41.00 | 5.60 | 48.87 | 517.2/117545 | 593.3 | 22.20 |
| 160-3 | 32A-3 | 50.800 | 28.58 | 31.55 | 14.27 | 186.6 | 47.80 | 6.40 | 58.55 | 680.4/154636 | 780.6 | 30.02 |
| 180-3 | 36A-3 | 57.150 | 35.71 | 35.48 | 17.46 | 210.2 | 53.60 | 7.20 | 65.84 | 840.7/191068 | 983.6 | 38.22 |
| 200-3 | 40A-3 | 63.500 | 39.68 | 37.85 | 19.85 | 230.4 | 60.00 | 8.00 | 71.55 | 1061.4/241227 | 1217.8 | 49.03 |
| 240-3 | 48A-3 | 76.200 | 47.63 | 47.35 | 23.81 | 278.6 | 72.39 | 9.50 | 87.83 | 1530.9/347932 | 1756.5 | 71.60 |

Complete specifications demonstrate performance scaling across diverse short pitch roller chain dimensions. A-series standardization ensures compatibility with universally available sprockets and transmission components, while multi-strand configurations accommodate escalating power requirements. Tensile strength ratings indicate load-carrying capacity, with two and three-strand variants doubling and tripling single-strand capabilities respectively.
2. Five Critical Advantages of Premium Cottered Type Roller Chains
Superior Load Transmission Capacity and Durability
Premium cottered type short pitch precision roller chains achieve exceptional tensile strength ratings enabling transmission of substantial power levels while maintaining dimensional stability throughout extended operational periods. Hardened steel roller construction resists abrasive wear patterns, while precision-manufactured connecting links ensure uniform load distribution across all chain elements, extending service intervals and reducing maintenance frequency for Colombian industrial operations.
Convenient Field Maintenance and Quick Disassembly
Cottered type roller chain design eliminates the requirement for costly and time-consuming chain removal procedures necessary with riveted alternatives. Facility technicians can rapidly disconnect cotter pin elements, remove damaged sections, or perform complete chain replacement without disrupting adjacent machinery or requiring specialized press equipment, significantly reducing maintenance downtime for Colombian manufacturing facilities.
Cost-Effective Solutions for Variable Load Applications
Short pitch precision roller chain technology delivers exceptional value through standardized manufacturing processes enabling competitive pricing while maintaining rigorous quality specifications. Colombian manufacturers operating diverse production processes benefit from standardized roller chain specifications reducing spare parts inventory complexity while supporting rapid component availability for emergency replacement scenarios.
Compatibility with Standardized Sprocket Systems
A-series short pitch roller chain standards ensure universal compatibility with widely available sprocket components manufactured globally, eliminating procurement challenges and enabling straightforward equipment modifications or replacements. Colombian facilities can rapidly source compatible transmission components from multiple suppliers, reducing supply chain dependencies and supporting operational flexibility essential for competitive manufacturing environments.
Extended Service Life Under Demanding Operating Conditions
Advanced manufacturing techniques and premium material specifications deliver cottered type roller chains capable of reliable performance throughout twenty thousand to fifty thousand hour operational intervals depending on duty cycle severity and lubrication maintenance adherence. Hardened roller surfaces and precision plate tolerances withstand contaminated environments common in Colombian facilities without accelerated wear patterns or dimensional degradation.
3. Operating Principles and Mechanical Function
Cottered type short pitch precision roller chains function through positive engagement between hardened rollers and precisely machined sprocket teeth, transmitting rotational motion through direct mechanical contact rather than friction-dependent systems. The A-series short pitch roller chain configuration utilizes alternating pin and roller elements arranged in precise geometric patterns establishing uniform pitch intervals along the entire chain length. During operation, as the driving sprocket rotates, individual rollers engage sequentially with sprocket teeth, transmitting driving torque through the connecting links and disengaging as the chain extends to the driven sprocket. This positive-engagement transmission mechanism eliminates slippage common in belt-drive systems while maintaining consistent speed ratios essential for synchronized machinery operation throughout Colombian industrial applications. The cotter pin connecting elements allow mechanical separation of individual chain sections, enabling field replacement of damaged components without requiring complete chain removal. Proper chain tension maintenance proves essential for optimal performance, with slack tension reducing power transmission efficiency while excessive tension accelerates bearing wear and increases energy consumption. Understanding these operating principles enables Colombian facility operators to implement appropriate maintenance procedures and recognize performance degradation indicators signaling necessary component replacement or tension adjustment.
4. Material Composition and Construction Standards
Cottered type short pitch precision roller chains incorporate carefully selected materials optimized for demanding mechanical power transmission environments. The connecting links undergo precision forging processes developing consistent grain structures that resist fatigue crack initiation even under cyclic stress reversal typical of continuous machinery operation. Pin elements manufactured from medium-carbon steel achieve hardness specifications through controlled heat treatment, providing wear resistance while maintaining adequate ductility preventing brittle fracture during shock loading conditions. Rollers undergo case hardening processes establishing hardened surface layers resisting abrasive contact with sprocket teeth while maintaining softer core material absorbing impact energy. Premium cottered type roller chain construction incorporates corrosion-resistant surface treatments protecting against humidity and moisture exposure prevalent in Colombian coastal facilities and humid interior manufacturing locations. The cotter pin fastening elements undergo precision manufacturing establishing consistent engagement characteristics preventing unexpected disassembly during operation. Material composition emphasizes durability and dimensional stability throughout extended service periods, with quality specifications exceeding ANSI standard minimum requirements established for short pitch precision roller chains. Colombian manufacturers can rely on superior material characteristics enabling extended equipment availability and reduced unplanned maintenance expenses through longer component service life compared to economy alternatives.
5. Cottered type roller chains’ Application Scenarios
Agricultural Equipment and Harvest Machinery
Cottered type roller chains provide reliable power transmission for harvesting equipment, threshing machines, and conveyor systems operating throughout Colombian agricultural production regions. Short pitch roller chain configurations enable compact equipment design while maintaining adequate power transmission capacity for grain handling and crop processing applications.
Industrial Conveyor and Material Handling Systems
Precision roller chain technology drives conveyor belts, bucket elevators, and material sorting systems across Colombian manufacturing and processing facilities. The cottered type configuration enables convenient chain removal for maintenance without disrupting adjacent machinery, reducing downtime during routine servicing.
Textile and Fabric Manufacturing Equipment
Textile machinery operating throughout Colombian production centers rely on precise roller chain transmission for consistent fabric motion and processing speed. Short pitch roller chains accommodate compact equipment designs while delivering the precise synchronization required for quality fabric production.
Food Processing and Beverage Production
Food and beverage manufacturing facilities utilize cottered type roller chains for ingredient conveying, packaging line drives, and product handling systems. Precision chain specifications enable food-safe production environments while the convenient disassembly design facilitates cleaning and sanitization requirements essential for food industry compliance.
Mining and Heavy Equipment Applications
Colombian mining operations depend on robust short pitch roller chain transmission for ore processing equipment, crushing machinery, and material conveying systems. Superior load capacity and durability characteristics enable continuous operation under harsh mining conditions with minimal maintenance interruptions.
Printing and Paper Processing Machinery
Precision roller chains drive paper feed mechanisms, printing equipment, and finishing systems throughout Colombian print production facilities. The standardized cottered type configuration supports rapid equipment configuration changes enabling diverse product specifications while maintaining consistent transmission reliability.

6. Conformità normativa e standard internazionali
Cottered type short pitch precision roller chains manufactured for Colombian and international markets comply with established standards ensuring interchangeability and reliable performance across diverse equipment applications. ANSI B29.1 standards establish pitch specifications, load ratings, and dimensional tolerances for A-series short pitch roller chains, ensuring compatibility between chains manufactured by different suppliers. ISO 606 international standards provide equivalent specifications enabling seamless procurement of replacement components from global suppliers. Colombian facilities operating equipment incorporating imported machinery components benefit from standardized roller chain specifications enabling straightforward replacement with locally available alternatives. Machine manufacturers throughout the region design equipment around ANSI-standard roller chain transmission, establishing consistent specifications across diverse production equipment. Regulatory compliance extends beyond dimensional standards to encompass safety characteristics, with roller chains manufactured to resist unexpected disassembly under normal operating stress levels. Colombian employers operating machinery with rotating transmission components must comply with occupational safety standards requiring adequate guarding of moving parts, with properly tensioned roller chains reducing risk of unexpected failure. Environmental regulations increasingly address manufacturing processes and material composition, with responsible roller chain manufacturers implementing sustainable practices and utilizing recyclable component materials. Understanding applicable standards enables Colombian facility operators to confidently procure compatible replacement components from multiple suppliers, reducing dependency on single sources and supporting competitive procurement strategies.
7. About Precision Chain Manufacturing
Professional precision roller chain manufacturers have accumulated decades of engineering expertise and production refinement delivering standardized components serving diverse industrial applications across Colombian and international markets. Advanced manufacturing facilities incorporate precision machining equipment, specialized heat treatment systems, and rigorous quality verification procedures ensuring consistent component quality throughout extended production runs. Experienced engineering teams continuously evaluate material compositions, manufacturing processes, and design characteristics enabling incremental improvements in durability, efficiency, and cost-effectiveness. Established manufacturers maintain comprehensive technical documentation supporting proper chain selection, installation procedures, and maintenance schedules enabling optimal equipment performance. Commitment to quality manufacturing and customer support distinguishes leading producers, with responsive technical assistance available for Colombian facilities requiring assistance with component selection or troubleshooting transmission performance issues.
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8. Related Transmission Components and Systems
Complete power transmission systems require carefully selected sprockets, gears, and complementary components ensuring optimal integration and reliable operation. Our comprehensive product portfolio encompasses standardized transmission elements supporting seamless system compatibility and enabling one-stop procurement simplifying facility supply chain management.
Precision-Engineered Sprocket Systems
We provide ruota dentata and drive system solutions manufactured to exacting specifications ensuring seamless compatibility with short pitch roller chain dimensions. Our sprocket engineering emphasizes precise tooth geometry and hardened surface characteristics promoting extended life while maintaining consistent power transmission efficiency essential for Colombian facility operations.

Industrial Transmission Gears
Our gear manufacturing specializes in precise mechanical power transmission components delivering reliable performance across diverse industrial applications throughout Colombian manufacturing regions. Precision gear engineering complements roller chain transmission systems through engineered speed reduction and directional modification capabilities.

Integrated transmission solutions combining precision roller chains with compatible sprockets and transmission gears enable Colombian manufacturers to achieve optimal equipment performance through standardized component specifications supporting straightforward maintenance and convenient replacement procedures. Complete system integration ensures transmission reliability while simplifying procurement processes and reducing overall equipment lifecycle costs through standardized specification compatibility.
Frequently Asked Questions About Cottered Type Roller Chains
Q1. What distinguishes cottered type roller chains from cotter pin alternatives in Colombian industrial applications?
Cottered type roller chains incorporate integrated cotter pin fastening elements enabling convenient field disassembly without requiring specialized press equipment. This distinction contrasts with traditional riveted chain designs necessitating complete chain replacement for damaged sections. Colombian facility maintenance personnel can rapidly remove individual chain links, replace damaged components, and reassemble chains within minutes, substantially reducing maintenance downtime compared to procedures requiring equipment removal and professional riveting services.
Q2. How should Colombian manufacturers select appropriate short pitch precision roller chain dimensions for specific equipment installations?
Proper roller chain selection requires evaluation of transmission power requirements calculated from driving motor horsepower and operating speed, shaft center-to-center distances affecting chain length determination, and sprocket tooth counts establishing speed ratio relationships. Short pitch roller chain pitch specifications ranging from 15.875mm (10A) through 76.200mm (48A) accommodate diverse power transmission applications, with larger pitch dimensions supporting heavier loads while smaller pitches enable compact equipment designs. Colombian facility engineers can consult detailed performance tables establishing recommended chain specifications for particular horsepower and sprocket tooth combinations.
Q3. How do A-series short pitch roller chains compare performance characteristics with alternative transmission technologies available for Colombian industrial equipment?
A-series short pitch roller chains deliver superior performance advantages compared to belt drive systems through positive engagement eliminating slippage, consistent speed ratios supporting synchronized machinery operation, and exceptional durability under contaminated operating conditions. Compared to gear drive alternatives, roller chain transmission offers compact installation profiles, convenient maintenance accessibility, and lower component costs while accepting modest efficiency reduction from mechanical friction. Colombian manufacturers selecting transmission technology should evaluate specific duty cycle requirements, installation space constraints, and maintenance resource availability determining optimal component selection for particular applications.
Redattore: PXY


