Accurate Roller Chain Dimensions for Buyers
Get the Right Roller Chain Dimensions-- The First Time
❌ Tired of downtime brought on by mismatched roller chains? ✅ We supply precision-engineered roller chains with standard dimensions for seamless integration, resilience, and lengthy life span. Whether you require ANSI, ISO, DIN, or BS requirements– we’ve got you covered.
What Are Roller Chain Dimensions and Why Do They Matter?
Roller chain measurements refer to the specific dimensions that define the structure and performance of a roller chain– such as pitch, roller diameter, inner size, and plate density. These specs are essential for ensuring compatibility with sprockets and smooth power transmission in industrial systems.
Basic Info
| ISO Chain No. | ANSI Chain No. | Pitch | Inner Width | Roller Diameter | Pin Diameter | Pin Length | Pin Length | Plate Width | Plate Thickness | Minimum Tensile Load | Average Tensile Load | Working Load |
| (P) | W( min) | (d₁ max) | (d₂ max) | (L max) | (Lc max) | (H max) | (T) | (min) | (max) | |||
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (kgf) | (kgf) | (kgf) | ||
| 04C | 25 | 6.35 | 3.1 | 3.3 | 2.31 | 8 | 8.8 | 6.02 | 0.75 | 360 | 400 | 65 |
| 06C | 35 | 9.525 | 4.68 | 5.08 | 3.6 | 12.15 | 13.4 | 9.05 | 1.15 | 810 | 1100 | 220 |
| 85 | 41 | 12.7 | 6.25 | 7.77 | 3.6 | 14 | 16 | 9.91 | 1.2 | 690 | 1250 | 230 |
| 08A | 40 | 12.7 | 7.85 | 7.92 | 3.98 | 17.8 | 21 | 12.07 | 1.5 | 1420 | 1950 | 370 |
| 10A | 50 | 15.875 | 9.4 | 10.16 | 5.09 | 21.8 | 25 | 15.09 | 2 | 2230 | 3000 | 650 |
| 12A | 60 | 19.05 | 12.57 | 11.91 | 5.96 | 26.9 | 31 | 18.1 | 2.35 | 4000 | 4100 | 920 |
| 16A | 80 | 25.4 | 15.75 | 15.88 | 7.94 | 33.5 | 38 | 24.13 | 3.2 | 5680 | 7500 | 1500 |
| 20A | 100 | 31.75 | 18.9 | 19.05 | 9.54 | 41.1 | 47 | 30.17 | 4 | 8880 | 12100 | 2300 |
| 24A | 120 | 38.1 | 25.22 | 22.23 | 11.11 | 50.8 | 57 | 36.2 | 4.7 | 12770 | 16000 | 3100 |
| 28A | 140 | 44.45 | 25.22 | 25.4 | 12.71 | 54.9 | 62 | 42.23 | 5.5 | 17380 | 21000 | 4100 |
| 32A | 160 | 50.8 | 31.55 | 28.58 | 14.29 | 65.5 | 73 | 48.26 | 6.4 | 22800 | 30000 | 5400 |
| 40A | 200 | 63.5 | 37.85 | 39.68 | 19.85 | 80.4 | 90 | 60.33 | 8 | 35460 | 46000 | 7300 |
| 48A | 240 | 76.2 | 47.35 | 47.63 | 23.81 | 95.5 | 106 | 72.39 | 9.5 | 53110 | 67500 | 10100 |
| ISO Chain No. | ANSI Chain No. | Pitch (mm) | Inner Link Width | Roller Outside Diameter | Pin Outside Diameter | Pin Length | Pin Length | Plate Width | Plate Thickness | Minimum Tensile Load | Average Tensile Load | Working Load | Pitch |
| P | W min | d₁ max | d₂ max | L max | Lc max | H max | T | min | max | Pt | |||
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (kgf) | (kgf) | (kgf) | (mm) | ||
| 04C – 2 | 25-2 | 6.35 | 3.1 | 3.3 | 2.31 | 14.5 | 15.2 | 6.02 | 0.75 | 720 | 860 | 110 | 6.4 |
| 06C – 2 | 32-2 | 9.525 | 4.68 | 5.08 | 3.6 | 22.8 | 23.7 | 9.05 | 1.15 | 1620 | 2200 | 370 | 10.13 |
| 08A – 2 | 40-2 | 12.7 | 7.85 | 7.92 | 3.98 | 32.3 | 36.2 | 12.07 | 1.5 | 2840 | 3900 | 630 | 14.38 |
| 10A – 2 | 50-2 | 15.875 | 9.4 | 10.16 | 5.09 | 39.9 | 44 | 15.09 | 2 | 4450 | 6200 | 1100 | 18.11 |
| 12A – 2 | 60-2 | 19.05 | 12.57 | 11.91 | 5.96 | 49.8 | 54.4 | 18.1 | 2.35 | 6400 | 8400 | 1530 | 22.78 |
| 16A – 2 | 80-2 | 25.4 | 15.75 | 15.88 | 7.94 | 62.7 | 68.1 | 24.13 | 3.2 | 11360 | 15000 | 2550 | 29.29 |
| 20A – 2 | 100-2 | 31.75 | 18.9 | 19.05 | 9.54 | 77 | 83.1 | 30.17 | 4 | 17760 | 24200 | 3900 | 35.76 |
| 24A – 2 | 120-2 | 38.1 | 25.22 | 22.23 | 11.11 | 96.3 | 102.9 | 36.2 | 4.7 | 25540 | 32000 | 5250 | 45.44 |
| 28A – 2 | 140-2 | 44.45 | 25.22 | 25.4 | 12.71 | 103.6 | 111 | 42.23 | 5.5 | 34760 | 42000 | 6970 | 48.87 |
| 32A – 2 | 160-2 | 50.8 | 31.55 | 28.58 | 14.29 | 124.2 | 132.1 | 48.26 | 6.4 | 45600 | 60000 | 9150 | 58.55 |
| 40A – 2 | 200-2 | 63.5 | 37.85 | 39.68 | 19.85 | 151.9 | 162.1 | 60.33 | 8 | 70920 | 92000 | 12400 | 71.55 |
| 48A – 2 | 240-2 | 76.2 | 47.35 | 47.63 | 23.81 | 183.4 | 193.9 | 72.39 | 9.5 | 106220 | 135000 | 17150 | 87.83 |
Choosing the wrong roller chain size leads to:
- Misalignment with sprockets
- Excessive wear and chain failure
- Costly equipment downtime
- Unnecessary maintenance cycles
With our standardized and precisely measured chains, you avoid all of the above.
Construction & Materials: Built for Performance
Our roller chains are manufactured using high-quality materials and robust construction techniques:
Material Options:
40Mn / 45Mn – High-strength carbon steel for heavy-duty performance
Stainless Steel 304 – Corrosion-resistant, ideal for food-grade and wet environments
Special Treatments:
- Heat Treatment for durability
- Polishing for smooth operation
Chain Types Available:Performance
- Simplex (single strand)
- Duplex (double strand)
- Triplex & Quadruplex – For higher load capacity
Standard Roller Chain Dimensions
We follow internationally recognized chain standards to guarantee compatibility:
| Standard | Pitch (mm) | Chain Types | Use Case |
|---|---|---|---|
| ANSI | 6.35–50.8 | Simplex to Triplex | General Industry, Machinery |
| ISO/DIN | 6 – 38.1 | Simplex to Duplex | EU market, OEMs |
| BS | 6 – 38.1 | Simplex to Triplex | British-built systems |
Production Capacity: 100,000 PCS/Month
MOQ: Flexible for bulk and small batch orders
Packaging: Carton, Pallet, Wooden Box, or per your request
We also provide custom chain lengths and nonstandard configurations upon request.
How Accurate Dimensions Improve Chain Performance
With precise roller chain dimensions, your machinery gets:
✅ Reliable and smooth motion transfer
✅ Longer lifespan of both chain and sprockets
✅ Fewer maintenance cycles
✅ Lower operational noise
✅ Consistent tension and alignment
We use automated QC systems and tight tolerances to ensure every link is built to exact specs.
Lubrication & Maintenance Features
Our chains support various lubrication methods, including:
- Oil bath lubrication for clean environments
- O-ring sealed chains for retaining grease and excluding contaminants
- Dry PTFE spray compatible for dusty or abrasive settings
Proper lubrication, combined with accurate roller chain dimensions, can extend operational life by up to 3x.
Where Our Roller Chains Are Used
Our chains are trusted in high-demand applications across:
🏭 Industrial conveyors & automation lines
🍽️ Food and beverage processing
🪵 Wood machinery and cutting systems
🚜 Agricultural equipment
🚗 Automotive transmission systems
🏗️ General power transmission applications
With stainless steel and heat-treated options, we match your exact environmental and load needs.
Ordering & Logistics
We make procurement fast and easy:
✅ Fast response on RFQs
✅ Global shipping with full export documentation
✅ Custom packaging & labeling
✅ Sample support for large-volume buyers
Call our team today with your called for roller chain dimensions, and we’ll send you a fast quote, spec sheet, or drawings.
Frequently Asked Question
Roller chain measurements describe essential measurements such as pitch, roller diameter, and internal size. Accurate dimensions ensure correct fit with sprockets, smooth procedure, and longer tools life expectancy.
We make roller chains according to ANSI, DIN, ISO, and BS criteria. These global specifications guarantee compatibility with many industrial systems worldwide.
Beginning by checking the pitch and roller size of your existing chain or sprocket. You can likewise send us an example or technical drawing, and we’ll assist match or recommend the best chain dimensions for your application.
Yes. In addition to conventional dimensions, we can produce custom-length chains, nonstandard pitches, and unique materials based on your technological requirements or illustrations.
We produce up to 100,000 items each month. Standard items ship swiftly, and customized orders generally ship within 2– 4 weeks, depending on intricacy and quantity.
Yes, we offer comprehensive technical information sheets, CAD illustrations, and chain size charts upon demand. Our sales engineers are likewise readily available to help with choice and application concerns.
