Roller chains are commonly found in a wide variety of power transmission, agricultural, and industrial applications. This popular type of chain provides a reliable mechanism for transmitting power to many kinds of different moving parts. Since its invention in 1880, conveyor, automotive, food and beverage, and farming equipment have boasted these popular and common types of chains to keep them running. This roller chain size chart will help you find the ideal size of roller chain for your replacement or OEM needs.
How To Measure Roller Chain
Whether you're building something from scratch or making an update to an existing project, finding the right size for your roller chain is a critical first decision. In order to accurately measure roller chain, you'll need to know the overall width, diameter and width of the roller, plate thickness and height.
Single Strand Roller Chain Size Chart
Like all of our roller chains, our single strand roller chains are hot-dipped to ensure 100% lubrication of the components and heat-treated for wear resistance. You'll find our single strand roller chains used in a variety of places such as the food industry or as conveyors.
| Part No. | 25R | 35R | 40R | 41R | 50R | 60R | 80R | 100R | 120R | 140R | 160R | 180R | 200R | 240R |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Industry No. | 25 | 35 | 40 | 41 | 50 | 60 | 80 | 100 | 120 | 140 | 160 | 180 | 200 | 240 |
| Pitch (P) | 0.250 | 0.375 | 0.500 | 0.500 | 0.625 | 0.750 | 1.000 | 1.250 | 1.500 | 1.750 | 2.000 | 2.250 | 2.500 | 3.000 |
| Roller Width (W) | 0.125 | 0.188 | 0.312 | 0.306 | 0.400 | 0.500 | 0.625 | 0.750 | 1.000 | 1.000 | 1.250 | 1.406 | 1.500 | 1.875 |
| Roller Diameter (R) | 0.130 | 0.200 | 0.312 | 0.250 | 0.375 | 0.469 | 0.625 | 0.750 | 0.875 | 1.000 | 1.125 | 1.406 | 1.562 | 1.875 |
| Plate Height (H) | 0.228 | 0.356 | 0.475 | 0.390 | 0.594 | 0.712 | 0.950 | 1.187 | 1.425 | 1.662 | 1.900 | 2.137 | 2.375 | 2.850 |
| Plate Thickness (T) | 0.030 | 0.050 | 0.060 | 0.050 | 0.080 | 0.094 | 0.125 | 0.156 | 0.187 | 0.219 | 0.250 | 0.281 | 0.312 | 0.375 |
| Pin Diameter (D) | 0.091 | 0.142 | 0.157 | 0.142 | 0.2000 | 0.235 | 0.313 | 0.376 | 0.4370 | 0.5000 | 0.563 | 0.687 | 0.781 | 0.937 |
| Overall Width (F) | 0.154 | 0.232 | 0.324 | 0.263 | 0.400 | 0.501 | 0.650 | 0.781 | 1.005 | 1.074 | 1.290 | 1.443 | 1.589 | 1.943 |
| Overall Width (G) | 0.185 | 0.277 | 0.406 | 0.334 | 0.488 | 0.601 | 0.803 | 0.950 | 1.174 | 1.267 | 1.459 | 1.659 | 1.825 | 2.179 |
| Unit of Measure (Inches or Millimeters) | in | in | in | in | in | in | in | in | in | in | in | in | in | in |
| Average Tensile Strength (Lbs.) | 1,036 | 2,469 | 4,188 | 2,866 | 6,834 | 9,259 | 17,636 | 25,353 | 34,392 | 46,297 | 57,761 | 84,216 | 109,128 | 154,323 |
| Average Weight Per Foot (Lbs./Ft.) | 0.087 | 0.215 | 0.417 | 0.276 | 0.679 | 0.974 | 1.714 | 2.654 | 3.790 | 4.959 | 6.317 | 8.514 | 10.684 | 16.396 |
Double Strand Roller Chain Size Chart
More robust than our single strand chains, these double strand roller chains feature solid rollers enhancing rotation on the bushing while reducing impact loads on the sprocket tooth during operation. These chains help bring your heavier-duty applications to life.
| PEER Part No. | 35-2R | 40-2R | 50-2R | 60-2R | 80-2R | 100-2R | 120-2R | 140-2R | 160-2R | 180-2R | 200-2R | 240-2R |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Industry No. | 35-2 | 40-2 | 50-2 | 60-2 | 80-2 | 100-2 | 120-2 | 140-2 | 160-2 | 180-2 | 200-2 | 240-2 |
| Pitch (P) | 0.375 | 0.500 | 0.625 | 0.750 | 1.000 | 1.250 | 1.500 | 1.750 | 2.000 | 2.250 | 2.500 | 3.000 |
| Roller Width (W) | 0.188 | 0.312 | 0.375 | 0.500 | 0.625 | 0.750 | 1.000 | 1.000 | 1.250 | 1.406 | 1.500 | 1.875 |
| Roller Diameter (R) | 0.200 | 0.312 | 0.400 | 0.469 | 0.625 | 0.750 | 0.875 | 1.000 | 1.125 | 1.406 | 1.562 | 1.875 |
| Plate Height (H) | 0.356 | 0.475 | 0.594 | 0.712 | 0.950 | 1.187 | 1.425 | 1.662 | 1.900 | 2.137 | 2.375 | 2.850 |
| Plate Thickness (T) | 0.050 | 0.060 | 0.080 | 0.094 | 0.125 | 0.156 | 0.187 | 0.219 | 0.250 | 0.281 | 0.312 | 0.375 |
| Pin Diam (D) | 0.142 | 0.157 | 0.200 | 0.235 | 0.312 | 0.376 | 0.437 | 0.500 | 0.563 | 0.687 | 0.781 | 0.937 |
| Overall Width (F) | 0.441 | 0.608 | 0.755 | 0.949 | 1.224 | 1.502 | 1.895 | 2.030 | 2.457 | 2.739 | 2.998 | 3.673 |
| Overall Width (G) | 0.469 | 0.690 | 0.850 | 1.055 | 1.386 | 1.655 | 2.060 | 2.243 | 2.567 | 2.955 | 3.234 | 3.906 |
| Unit of Measure (Inches or Millimeters) | in | in | in | in | in | in | in | in | in | in | in | in |
| Transverse pitch (K) | 0.399 | 0.566 | 0.713 | 0.897 | 1.153 | 1.408 | 1.789 | 1.924 | 2.305 | 2.592 | 2.817 | 3.458 |
| Average Tensile Strength (Lbs.) | 4,938 | 8,377 | 13,668 | 18,518 | 35,273 | 50,706 | 68,784 | 92,594 | 115,522 | 168,433 | 218,257 | 308,647 |
| Average Weight Per Foot (Lbs./Ft.) | 0.423 | 0.820 | 1.344 | 1.929 | 3.393 | 5.282 | 7.526 | 9.851 | 12.526 | 16.893 | 21.234 | 32.523 |
Triple Strand Roller Chain Size Chart
These triple strand roller chains are able to withstand a significant amount of pressure, making them ideal for applications in the agriculture, sewage and machinery industries. Measure carefully to ensure that you receive the correct size of triple strand roller chain for your needs.
| PEER Part No. | 35-3R | 40-3R | 50-3R | 60-3R | 80-3R | 100-3R | 120-3R | 140-3R | 160-3R | 180-3R | 200-3R | 240-3R |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Industry No. | 35-3 | 40-3 | 50-3 | 60-3 | 80-3 | 100-3 | 120-3 | 140-3 | 160-3 | 180-3 | 200-3 | 240-3 |
| Pitch (P) | 0.375 | 0.500 | 0.625 | 0.750 | 1.000 | 1.250 | 1.500 | 1.750 | 2.000 | 2.250 | 2.500 | 3.000 |
| Roller Width (W) | 0.188 | 0.312 | 0.375 | 0.500 | 0.625 | 0.750 | 1.000 | 1.000 | 1.250 | 1.406 | 1.500 | 1.875 |
| Roller Diameter (R) | 0.200 | 0.312 | 0.400 | 0.469 | 0.625 | 0.750 | 0.875 | 1.000 | 1.125 | 1.406 | 1.562 | 1.875 |
| Plate Height (H) | 0.356 | 0.475 | 0.594 | 0.712 | 0.950 | 1.187 | 1.425 | 1.662 | 1.900 | 2.137 | 2.375 | 2.850 |
| Plate Thickness (T) | 0.050 | 0.060 | 0.080 | 0.094 | 0.125 | 0.156 | 0.187 | 0.219 | 0.250 | 0.281 | 0.312 | 0.375 |
| Pin Diam (D) | 0.142 | 0.157 | 0.200 | 0.235 | 0.313 | 0.376 | 0.437 | 0.500 | 0.563 | 0.687 | 0.781 | 0.937 |
| Overall Width (F) | 0.633 | 0.890 | 1.113 | 1.400 | 1.799 | 2.224 | 2.773 | 2.997 | 3.613 | 4.035 | 4.406 | 5.402 |
| Overall Width (G) | 0.677 | 0.975 | 1.207 | 1.506 | 1.965 | 2.338 | 2.974 | 3.194 | 3.691 | 4.251 | 4.642 | 5.638 |
| Unit of Measure (Inches or Millimeters) | in | in | in | in | in | in | in | in | in | in | in | in |
| Transverse pitch (K) | 0.399 | 0.566 | 0.713 | 0.897 | 1.153 | 1.408 | 1.789 | 1.924 | 2.305 | 2.592 | 2.817 | 3.458 |
| Average Tensile Strength (Lbs.) | 7,407 | 12,566 | 20,502 | 27,778 | 52,910 | 76,059 | 103,176 | 138,891 | 173,283 | 252,649 | 327,386 | 462,970 |
| Average Weight Per Foot (Lbs./Ft.) | 0.631 | 1.223 | 2.002 | 2.876 | 5.067 | 7.896 | 11.242 | 14.736 | 18.741 | 25.266 | 31.784 | 48.651 |
Quad Strand Roller Chain Size Chart
Quad strand roller chains are the heavy-duty option when you need to get some serious work done. If you need help measuring these larger chains accurately, give the professionals at PEER Chain a call for assistance.
| PEER Part No. | 50-4R | 60-4R | 80-4R | 100-4R | 120-4R | 140-4R | 160-4R | 180-4R | 200-4R | 240-4R |
|---|---|---|---|---|---|---|---|---|---|---|
| Industry No. | 50-4 | 60-4 | 80-4 | 100-4 | 120-4 | 140-4 | 160-4 | 180-4 | 200-4 | 240-4 |
| Pitch (P) | 0.625 | 0.750 | 1.000 | 1.250 | 1.500 | 1.750 | 2.000 | 2.250 | 2.500 | 3.000 |
| Roller Width (W) | 0.375 | 0.500 | 0.625 | 0.750 | 1.000 | 1.000 | 1.250 | 1.406 | 1.500 | 1.875 |
| Roller Diameter (R) | 0.400 | 0.469 | 0.625 | 0.750 | 0.875 | 1.000 | 1.125 | 1.406 | 1.562 | 1.875 |
| Plate Height (H) | 0.594 | 0.712 | 0.950 | 1.187 | 1.425 | 1.662 | 1.900 | 2.137 | 2.375 | 2.850 |
| Plate Thickness (T) | 0.080 | 0.094 | 0.125 | 0.156 | 0.187 | 0.219 | 0.250 | 0.281 | 0.312 | 0.375 |
| Pin Diam (D) | 0.200 | 0.235 | 0.313 | 0.376 | 0.437 | 0.500 | 0.563 | 0.687 | 0.781 | 0.937 |
| Overall Width (F) | 1.483 | 1.848 | 2.392 | 2.909 | 3.682 | 3.959 | 4.746 | 5.331 | 5.814 | 7.130 |
| Overall Width (G) | 1.550 | 1.955 | 2.526 | 3.063 | 3.832 | 4.152 | 4.920 | 5.547 | 6.050 | 7.366 |
| Unit of Measure (Inches or Millimeters) | in | in | in | in | in | in | in | in | in | in |
| Transverse pitch (K) | 0.713 | 0.897 | 1.153 | 1.408 | 1.789 | 1.924 | 2.305 | 2.592 | 2.817 | 3.458 |
| Average Tensile Strength (Lbs.) | 28,439 | 37,919 | 70,547 | 117,506 | 155,425 | 213,407 | 267,200 | 336,866 | 436,515 | 617,294 |
| Average Weight Per Foot (Lbs./Ft.) | 2.674 | 3.830 | 6.760 | 10.516 | 14.971 | 19.648 | 25.004 | 33.639 | 42.200 | 64.643 |
Heavy Series Single Strand Size Chart
Featuring thicker side plates for greater strength and durability, PEER Chain's Heavy Series Single Strand Chains are a great choice when you need to transmit some serious power in a confined space. Give the Engineering Experts at PEER Chain a call to discuss your unique needs.
| PEER Part No. | 25HR | 50HR | 60HR | 80HR | 100HR | 120HR | 140HR | 160HR | 180HR | 200HR |
|---|---|---|---|---|---|---|---|---|---|---|
| Industry No. | 25H | 50H | 60H | 80H | 100H | 120H | 140H | 160H | 180H | 200H |
| Pitch (P) | 0.250 | 0.625 | 0.750 | 1.000 | 1.250 | 1.500 | 1.750 | 2.000 | 2.250 | 2.500 |
| Roller Width (W) | 0.125 | 0.375 | 0.500 | 0.625 | 0.750 | 1.000 | 1.000 | 1.250 | 1.406 | 1.500 |
| Roller Diameter (R) | 0.130 | 0.400 | 0.469 | 0.625 | 0.750 | 0.875 | 1.000 | 1.125 | 1.406 | 1.562 |
| Plate Height (H) | 0.229 | 0.594 | 0.712 | 0.950 | 1.187 | 1.425 | 1.662 | 1.900 | 2.137 | 2.375 |
| Plate Thickness (T) | 0.040 | 0.094 | 0.125 | 0.156 | 0.187 | 0.219 | 0.250 | 0.281 | 0.312 | 0.375 |
| Pin Diam (D) | 0.091 | 0.2000 | 0.235 | 0.313 | 0.376 | 0.437 | 0.5000 | 0.563 | 0.6870 | 0.781 |
| Overall Width (F) | 0.174 | 0.435 | 0.567 | 0.715 | 0.860 | 1.072 | 1.144 | 1.339 | 1.521 | 1.715 |
| Overall Width (G) | 0.603 | 0.474 | 0.618 | 0.793 | 0.998 | 1.265 | 1.345 | 1.546 | 1.738 | 1.934 |
| Unit of Measure (Inches or Millimeters) | in | in | in | in | in | in | in | in | in | in |
| Average Tensile Strength (Lbs.) | 1,160 | 8,157 | 11,905 | 21,495 | 30,424 | 41,447 | 54,895 | 68,784 | 97,444 | 113,759 |
| Average Weight Per Foot (Lbs./Ft.) | 0.108 | 0.766 | 1.163 | 1.996 | 3.017 | 4.207 | 5.477 | 7.109 | 9.206 | 12.835 |
Heavy Series Double Strand Size Chart
When you need a chain that can take a licking and keep on ticking, you can count on our Standard Heavy Double-Strand Chain! For maximum durability, these chains are available with optional Quest technology featuring solid bushings for enhanced durability.
| PEER Part No. | 60H-2R | 80H-2R | 100H-2R | 120H-2R | 140H-2R | 160H-2R | 180H-2R | 200H-2R |
|---|---|---|---|---|---|---|---|---|
| Industry No. | 60H-2 | 80H-2 | 100H-2 | 120H-2 | 140H-2 | 160H-2 | 180H-2 | 200H-2 |
| Pitch (P) | 0.750 | 1.000 | 1.250 | 1.500 | 1.750 | 2.000 | 2.250 | 2.500 |
| Roller Width (W) | 0.500 | 0.625 | 0.750 | 1.000 | 1.000 | 1.250 | 1.406 | 1.500 |
| Roller Diameter (R) | 0.469 | 0.625 | 0.750 | 0.875 | 1.000 | 1.125 | 1.406 | 1.562 |
| Plate Height (H) | 0.712 | 0.950 | 1.187 | 1.425 | 1.662 | 1.900 | 2.137 | 2.375 |
| Plate Thickness (T) | 0.125 | 0.156 | 0.187 | 0.219 | 0.250 | 0.281 | 0.312 | 0.375 |
| Pin Diam (D) | 0.235 | 0.313 | 0.376 | 0.437 | 0.500 | 0.563 | 0.687 | 0.781 |
| Overall Width (F) | 1.085 | 1.368 | 1.637 | 2.048 | 2.172 | 2.557 | 2.881 | 3.257 |
| Overall Width (G) | 1.132 | 1.427 | 1.763 | 2.233 | 2.369 | 2.764 | 3.346 | 3.475 |
| Unit of Measure (Inches or Millimeters) | in | in | in | in | in | in | in | in |
| Transverse pitch (K) | 1.028 | 1.283 | 1.539 | 1.924 | 2.055 | 2.437 | 2.723 | 3.083 |
| Average Tensile Strength (Lbs.) | 23,810 | 42,990 | 60,848 | 82,894 | 109,790 | 137,568 | 194,889 | 227,517 |
| Average Weight Per Foot (Lbs./Ft.) | 2.305 | 3.971 | 5.880 | 8.400 | 10.886 | 14.172 | 18.210 | 25.468 |
Functions of Roller Chains
In general, roller chains have four key functions:
- To move materials or objects from one location to another
- To transmit power
- To ensure that an action occurs consistently after the previous action over a period of time; i.e. synchronization
- To shift the direction of motion from linear to rotary
Roller chains have significant advantages over belt drives for these functions, as they have very little slippage or stretching across the chains even with a heavy load and are incredibly efficient and long-wearing. Roller chains are exceptional for use in a high-stress environment as they will hold up under even the most difficult conditions such as high and low temperature, or start-stop action usage. These roller chains also have a virtually unlimited shelf life as long as they are stored and maintained in the proper environment.
Sizes of Roller Chains
As you can see above in the roller chain size charts, there is a wide range of sizes that are available in this versatile chain. Single and multiple-strand roller chains are available, with different weight and tensile strength ratings based on the manufacturing requirements for their particular use. Since chains are used as a drive and as part of a conveyor system, the range of sizes can be quite significant. Smaller pitch chains are often found in light to moderate load applications while larger pitch chains are used in heavier load applications.
Roller chain sizes are standardized according to ANSI/ASME or ISO British standards, which are meant to provide interchangeability of design and dimensions for chains, sprockets, and attachments. Fortunately, you will find a wide range of options available at PEERChain.com. Roller chain specification includes key values for:
- Size
- Pitch
- Roller Width and Diameter
- Average Ultimate Tensile Strength
Sizes for ANSI/ASME standard roller chains range from 25 to 240.
Tensile and Fatigue Strength of Roller Chain
Tensile strength is one of the key measurements of roller chains and indicates specifically the one-time load capacity of a chain before it breaks. It is important to note how tensile strength is different from fatigue strength, as both are used to indicate the overall durability of a particular chain. Fatigue strength is defined as the load at which the roller chain will likely begin to fail after continuous use over a period of time.
When you are looking for roller chains that you can trust, look no further than PEER Chain. Our high-quality materials and exceptional customer service before (and after!) the sale will keep you coming back. Our primary goal is to ensure that you receive exactly the product that you need for your particular application. Do you have questions about how to find the ideal roller chain for your needs? Contact our friendly and knowledgeable professionals at 800-523-4567 between 7:00 AM and 6:00 PM CST/CDT or via email to info@PEERchain.com. If you are attempting to match a chain or sprocket and don't see what you need, just let us know! We will find it for you.