Descrição
Corrente de rolos de precisão de passo curto série EP-B com três fileiras
The EP-B-Series Short Pitch Precision Triple Row Roller Chain deliver exceptional load capacity through their advanced design incorporating three parallel rows of precision rollers, bushing components, and interlocked side plates that distribute forces evenly across the chain width. This triple row roller chain configuration provides significantly enhanced torque transmission compared to standard single-row designs, making it an ideal choice for demanding applications throughout Colombian manufacturing, mining, and processing facilities where equipment uptime and operational efficiency directly impact production schedules and profitability.
1. Detailed Technical Specifications
| ISO/DIN Chain No. | Passo P (mm) | Roller diameter d1 max (mm) | Width between inner plates b1 min (mm) | Pin diameter d2 max (mm) | Pin length L max (mm) | Pin length Lc max (mm) | Inner plate depth h2 max (mm) | Plate thickness t/T max (mm) | Transverse pitch Pt (mm) | Tensile strength Q min (kN/bf) | Average tensile strength Q0 (kN) | Weight per meter q (kg/m) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 05B-3 | 8.000 | 5.00 | 3.00 | 2.31 | 19.5 | 20.2 | 7.10 | 0.80 | 5.64 | 11.1/2523 | 13.8 | 0.48 |
| *06B-3 | 9.525 | 6.35 | 5.72 | 3.28 | 33.5 | 34.6 | 8.20 | 1.30 | 10.24 | 24.9/5659 | 30.1 | 1.16 |
| 08B-3 | 12.700 | 8.51 | 7.75 | 4.45 | 45.1 | 46.1 | 11.80 | 1.60 | 13.92 | 47.5/10795 | 57.8 | 2.03 |
| 10B-3 | 15.875 | 10.16 | 9.65 | 5.08 | 52.7 | 54.1 | 14.70 | 1.70 | 16.59 | 66.7/15159 | 84.5 | 2.77 |
| 12B-3 | 19.050 | 12.07 | 11.68 | 5.72 | 61.5 | 63.1 | 16.00 | 1.85 | 19.46 | 86.7/19705 | 101.8 | 3.46 |
| 16B-3 | 25.400 | 15.88 | 17.02 | 8.28 | 99.8 | 101.2 | 21.00 | 4.15/3.1 | 31.88 | 160.0/36364 | 227.1 | 8.13 |
| 20B-3 | 31.750 | 19.05 | 19.56 | 10.19 | 114.2 | 117.9 | 26.40 | 4.50/3.5 | 36.45 | 250.0/56818 | 334.3 | 10.82 |
| 24B-3 | 38.100 | 25.40 | 25.40 | 14.63 | 150.1 | 154.6 | 33.20 | 6.00/4.8 | 48.36 | 425.0/96591 | 493.0 | 20.10 |
| 28B-3 | 44.450 | 27.94 | 30.99 | 15.90 | 184.2 | 188.7 | 36.70 | 7.50/6.0 | 59.56 | 530.0/120454 | 609.5 | 24.92 |
| 32B-3 | 50.800 | 29.21 | 30.99 | 17.81 | 183.2 | 188.2 | 42.00 | 7.00/6.0 | 58.55 | 670.0/152273 | 770.5 | 31.56 |
| 40B-3 | 63.500 | 39.37 | 38.10 | 22.89 | 226.8 | 233.8 | 52.96 | 8.50/8.0 | 72.29 | 950.0/215909 | 1092.5 | 48.10 |
| 48B-3 | 76.200 | 48.26 | 45.72 | 29.24 | 281.6 | 289.4 | 63.80 | 12.00/10.0 | 91.21 | 1500.0/340909 | 1710.0 | 75.00 |
| 56B-3 | 88.900 | 53.98 | 53.34 | 34.32 | 327.8 | 336.2 | 77.80 | 13.50/12.0 | 106.6 | 2240.0/545450 | 2464.0 | 107.18 |
| 64B-3 | 101.60 | 63.50 | 60.96 | 39.40 | 369.8 | 378.3 | 90.17 | 15.00/13.0 | 119.89 | 3000.0/681820 | 3300.0 | 136.00 |
| 72B-3 | 114.30 | 72.39 | 68.58 | 44.48 | 420.0 | 429.0 | 103.60 | 17.00/15.0 | 136.27 | 3750.0/852270 | 4125.0 | 180.00 |
*Straight side plates
The comprehensive technical specifications presented above demonstrate the capability range of B-Series Short Pitch Precision Roller Chains available for Colombian industrial applications. When examining short pitch precision roller chains sizes and specifications, Colombian engineers should note that pitch measurements represent the distance between consecutive roller centers, while roller diameter and pin specifications determine load capacity and compatibility with existing sprocket systems. The triple-row roller chain configuration multiplies load-carrying capacity through three parallel load paths, enabling Colombian applications including conveyor systems, power transmission drives, and material handling equipment to operate reliably under demanding conditions.

2. What is a Roller Chain and Key Technical Advantages
Understanding what is a roller chain requires examining the fundamental mechanical principles that define this critical transmission component used extensively across Colombian industrial sectors. A roller chain consists of interconnected links comprising inner plates, outer plates, pins, bushings, and precision-manufactured rollers that engage with sprocket teeth to transmit power from one rotating shaft to another. The triple-row roller chains design expands this basic architecture by incorporating three parallel roller sequences operating in unison, effectively multiplying load capacity and enabling reliable operation under severe duty conditions prevalent in Colombian petrochemical refineries, sugar processing plants, and mining operations.
When examining the difference between A and B roller chains, Colombian engineers should understand that B-Series Short Pitch Precision Roller Chains offer tighter pitch specifications and enhanced precision tolerances compared to standard A-Series chains, resulting in smoother engagement with sprockets and reduced noise generation during high-speed operation. The roller chain triplex configuration characteristic of triple row roller chains sleeve chains provides approximately three times the load-carrying capacity of comparable single-row alternatives, while the precision bushing design ensures minimal friction losses and extended service intervals essential for Colombian operations operating continuously throughout the year.
3. Five Critical Performance Advantages for Colombian Industry
Capacidade de carga excepcional
The triple row roller chains design delivers three times greater load-carrying capacity compared to single-row alternatives, enabling Colombian mining operations and heavy industrial applications to operate reliably under severe shock loading and continuous duty conditions without premature chain fatigue or component failure.
Padrões de fabricação de precisão
B-Series Short Pitch Precision Roller Chains undergo stringent quality control procedures ensuring dimensional tolerances meet international standards, resulting in consistent engagement with sprocket teeth and elimination of noise, vibration, and premature wear common in Colombian facilities using lower-grade chain products.
Vida útil prolongada
Advanced material metallurgy and precision bushing design significantly extend operational life compared to standard triple-row roller chains sleeve chains, reducing maintenance costs and equipment downtime in Colombian continuous-process operations such as sugar refineries and petrochemical facilities.
Superior Corrosion Resistance
Specialty coating systems protect against corrosion common in Colombian coastal facilities and humid processing environments, while advanced bushing materials resist wear from continuous operation, ensuring extended chain life even under challenging environmental conditions throughout the country.
Cost-Effective Operation
Enhanced durability and extended service intervals translate to lower total cost of ownership for Colombian industrial operations, reducing frequent replacement expenses while maintaining consistent production schedules and operational efficiency throughout extended deployment periods.
4. How Roller Chain Pitch Affects Performance and Selection
Understanding what is a pitch on a roller chain and how to measure roller chain pitch is fundamental to proper chain selection and system compatibility in Colombian industrial facilities. Pitch defines the linear distance between consecutive roller centers on the chain, measured in millimeters or inches depending on regional standards. Short pitch precision roller chains incorporate tighter pitch tolerances compared to standard chains, resulting in smoother engagement with sprockets and significantly reduced noise generation critical for Colombian operations operating in urban manufacturing zones. When examining roller chain standards applicable to Colombian equipment specifications, the ISO and ANSI standards provide reference dimensions ensuring interchangeability with compatible sprocket systems available through regional suppliers.
Colombian facilities operating roller chain conveyor systems and short pitch roller chain wheel assemblies require precise pitch measurement and verification to ensure compatibility with sprocket tooth profiles and avoid misalignment issues causing accelerated wear. The relationship between roller chain pitch and sprocket tooth geometry determines load distribution across individual teeth, directly affecting chain service life and required maintenance intervals. Short pitch transmission precision roller and bush chains provide advantages through enhanced precision and reduced vibration compared to conventional alternatives, making them preferred selections for Colombian operations prioritizing low-noise operation and extended equipment life.
5. Material Composition and Construction Methods
The EP-B-Series Short Pitch Precision Triple Row Roller Chain incorporates premium materials and advanced manufacturing processes ensuring durability and reliability across diverse Colombian industrial environments. Side plates are precision-stamped from high-carbon steel alloys then heat-treated to achieve optimal hardness and toughness characteristics that balance wear resistance with impact absorption capabilities. Pin and bushing components undergo specialized surface hardening treatments creating wear-resistant surfaces while maintaining tough inner cores that absorb shock loads inevitable during transmission operation in Colombian mining conveyors and processing equipment.
Roller manufacturing employs precision grinding and polishing processes producing smooth cylindrical surfaces with dimensional tolerances ensuring consistent contact with sprocket teeth and minimizing friction losses. When comparing the difference between silent chain and roller chain alternatives, the triple row roller chains sleeve chains configuration offers superior load capacity and lower manufacturing cost compared to silent chain designs, making them preferred selections for cost-conscious Colombian operations requiring maximum performance from equipment budgets. Advanced coating systems applied to chain components provide corrosion resistance critical for Colombian facilities exposed to humidity, salt air in coastal regions, and chemical exposure in petrochemical facilities throughout the country.

6. Diverse Application Scenarios Throughout Colombian Industry
Mining and Extraction Operations
Colombian coal and mineral mining operations deploy triple row roller chains in heavy-duty conveyor systems transporting ore from underground facilities to processing areas. The exceptional load capacity and durability characteristics of the triple-row roller chain design enable reliable operation under extreme conditions including dust exposure, temperature fluctuations, and continuous duty cycles inherent to Colombian mining applications.
Sugar Processing Facilities
Colombian sugar refineries integrate short pitch precision roller chains in bagasse conveyor systems, crushing machinery drives, and processing equipment requiring continuous operation throughout extended harvest seasons. The superior wear characteristics and precision tolerances of B-Series Short Pitch Precision Roller Chains enable these facilities to minimize maintenance interruptions and maintain consistent processing throughput.
Petrochemical and Refining Plants
Colombian petroleum facilities employ roller chain triplex designs in crude oil handling equipment, feedstock pumps, and process machinery where chemical exposure and extreme temperatures demand corrosion-resistant materials and robust design. The advanced metallurgy and surface treatments of triple row roller chains sleeve chains provide reliable performance in these challenging environments.
Cement and Building Materials Production
Cement plants and quarry operations throughout Colombia utilize short pitch chain systems in kiln drives, raw material grinding equipment, and finished product handling conveyors. The roller chain triple design delivers the load capacity required for these high-torque applications while minimizing vibration and noise characteristic of superior precision manufacturing.
Automobile Manufacturing
Colombian automotive assembly plants and parts suppliers specify triple-row roller chains in assembly line conveyors, parts handling systems, and automated machinery requiring precision synchronization and reliability. The close tolerances of B-Series chains ensure smooth operation compatible with modern manufacturing automation standards.
Food and Beverage Processing
Colombian food manufacturing facilities employ corrosion-resistant roller chain systems in beverage bottling lines, confectionery production, and grain processing equipment where sanitation requirements and moisture exposure demand specialized materials. Short pitch precision roller chains offer the reliability and durability these critical applications require.
7. Colombian Regulatory Compliance and International Standards
The EP-B-Series Short Pitch Precision Triple Row Roller Chain complies with Colombian industrial equipment standards established through Resolución 1409 de 2012 governing machinery safety and operational parameters for industrial facilities. Colombian occupational health legislation SGSST (Decreto 1072 de 2015) mandates specific guarding requirements for exposed chain systems that must be addressed during equipment installation and operation planning. International standards ISO 12942 and ANSI B29.1 provide reference specifications for roller chain dimensions and performance criteria applicable to Colombian industrial procurements and equipment compatibility verification.
Colombian facilities exporting finished goods incorporating roller chain systems must comply with European Machinery Directive 2006/42/EC requirements when equipment will be sold or operated in European markets. API and AGMA industry standards provide specialized guidance for petrochemical and automotive applications utilizing triple row roller chains sleeve chains, relevant to Colombian companies serving these sectors. Environmental regulations under Colombian law CONPES 3918 address waste management and material disposal requirements for worn chain components, encouraging manufacturers and operators to implement recycling programs supporting national sustainability objectives.
8. About Our Manufacturing Excellence
Our advanced manufacturing facility specializes in producing precision roller chain systems serving Colombian industrial customers and global markets requiring superior quality triple row roller chains and short pitch transmission components. Dedicated production lines for triple-row roller chains incorporate precision stamping, heat treatment, and grinding operations ensuring consistent dimensional accuracy and mechanical properties meeting published specifications. Each chain undergoes comprehensive quality inspection including pitch verification, tensile testing, and noise performance validation before delivery to Colombian customers, ensuring compatibility with existing equipment and meeting stringent operational requirements.
Oficina




9. Integrated Power Transmission Solutions
Our comprehensive product portfolio extends beyond triple row roller chains to encompass complete power transmission systems serving Colombian industrial applications. We manufacture precision sprocket assemblies engineered specifically for seamless integration with our roller chain products, ensuring optimal power transmission efficiency and extended component service life. These complementary components enable Colombian customers to source complete drivetrain solutions from single supplier reducing installation complexity and ensuring system compatibility across full power transmission path.
Precision Sprocket Systems
Nosso sprocket manufacturing produces tooth profiles precisely matched to B-Series Short Pitch Precision Roller Chains, enabling Colombian customers to achieve optimal power transmission characteristics and extended chain service life. Sprocket designs accommodate the unique geometry of triple row roller chains sleeve chains requiring careful engineering to balance load distribution across three parallel chain rows.

Industrial Gear Components
We supply advanced engrenagem products designed for integration with roller chain systems in applications requiring speed conversion or direction change. Our gear manufacturing capabilities produce spur gears, helical designs, and specialized profiles optimized for Colombian industrial duty cycles and operating conditions.

This integrated approach to power transmission component supply delivers significant advantages for Colombian industrial customers through simplified procurement processes, consistent quality standards across all components, and comprehensive technical support throughout system installation and operation. Our engineering team provides system-level analysis examining complete power transmission paths, optimizing component selection across roller chain triplex products, precision sprocket assemblies, and industrial gear components to achieve maximum efficiency and reliability for Colombian manufacturing operations.
Frequently Asked Questions About Roller Chain Systems
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Editor: PXY

