Chain pitch chart. Mechanical Power Transmission .

Chain pitch chart 45 mm pitch, or 14/8 = 1. As a certified STIHL Dealer we carry a complete line of STHIL Chainsaws and power equipment as well as High Quality Replacement Parts, Guide Bars and Replacement Chainsaw Chains for STIHL Chainsaws. Here’s how to measure it. Furthermore, double-pitch roller chains can be supplied with either straight side plates for conveyor applications or figure-8 side plates for chart. 525 etc; If it’s not on the chain it may be on the sprockets, check the sprocket part numbers stamped/etched onto them Once you have determined the pitch, gauge, number of drive links, and guide bar length, you can select a chainsaw chain that matches these specifications. #120 chain is commonly referred to as "1-1/2" pitch chain". ANSI/ASME B29. Pitch determines the length of the chain. ; Max Load: The maximum load capacity of the STIHL Chainsaw Chain & Bar Quick Reference Chart. 3 25 50 40 313 10 93 82. 1 standards. The diameters listed in our chart is the outside diameter of the sprocket (Tip of the sprocket tooth). Our size range starts from #25, #35, #40, #41, #50, and goes all the way up to ANSI 240 Chain. Chain Number Pitch Roller Diameter Inner Width Pin Diameter Link Plate Height Plate Thickness Overall Width # P d1 b1 d2 h2 T L; 05B: 0. **WARNING: Recommended STIHL green-labeled, low-kickback chains are not available in . Historically there were also other pitch sizes, but the 0. Roller Diameter: The diameter of the chain's rollers. Example: Your chain has the number 33RM2 stamped in the side of it. We carry hallow pin metric roller chains sizes 08BHP through 16BHP and pitch sizes 12. of outside pitch plain hub ltb net teeth diameter diameter bore diameter price 9 85 74. 325″. To get the correct size, simply count 3 rivets on the chain and measure the distance between them from the centre points. Our chart covers 05B single, double and triple row roller chain. 00 The chain pitch is the distance between every other rivet, in inches, divided by two. The three key dimensions needed to identify roller chain – according to both ISO & ANSI standards – are chain pitch, roller diameter and the inner width of the roller link. File Size and Chain Pitch Relationship. Pitch, representing the distance between chain links, influences factors such as speed and torque transmission. 7 Sprocket Diameter Chart By Chain Size. Learn how to measure and identify roller chain pitch, width, diameter, Whether you're maintaining equipment or building something new, this roller chain size chart is your go-to guide for finding the perfect chain to Find the complete dimensions of single, double and triple metric roller chains in inches and millimeters. Nitro Chain Number Pitch Roller Width Roller Diameter Overall Width Pin Diameter Plate Height Plate Thickness-P: b1: d1: L: d2: h2: T: 25-1* 1/4: 1/8: Oregon has several gauges of saw chain, . 4567. By measuring the pitch and the inside width of the chain, the Chain pitch is measured in eighths of an inch. . For example, a road bike may require a chain with a pitch of 3/32″ and a gauge of 9mm, while a mountain bike may require a chain with a pitch of 1/2″ and a gauge of 10mm. Parts manufacturing lines Pre-lubrication product line 2. 81X ANSI Single-Strand Roller Chains are also categorized as simplex or are designated with a (-1) after the specific chain size. 800. Leaf Chain Pitch Chart. 80 4. #50 chain has a 5/8" pitch (measure from center of one roller link to another) and a width of 3/8" between links (measured inside the chain). AL Series AL Series leaf chains - light duty - consist of link plates with the same contour and thickness as the pin link plates of ANSI roller chains having the same pitch. Average Strength(lbs) ANSI Stan-dard Weight lbs/ft C. P = chain pitch; PD = pitch diameter; Pitch diameter of sprocket = P / Sin (180deg / N) Bottom diameter of sprocket = PD - D r. Nitro #120 roller chain is an industrial grade chain that is made to ANSI B29. Getting yourself familiar with the chainsaw chain identification chart is a great way to be well-versed in SY Chain No. These sizes include # 25 (1/4" pitch) up to #240 (3" pitch). While 219 pitch chain can be broken with a chain breaker, it is not recommended. This roller chain size chart will help you find the ideal size of roller chain for your replacement or OEM needs. We offer this chain in standard, cottered, stainless steel, zinc plated and nickel The most common chain pitches are either 3/8” or . Pitch P Lacing Min. Within each size, we offer different quality levels and options. The first measurement we'll use is the pitch (P). Most common on small dirt bikes and junior ATVs. Chain No. Always order by the number stamped on the drive link of your old chain to assure correct ISO 606:2015 Short-pitch transmission precision roller and bush chains, attachments and associated chain sprockets – often referred to as BS or European standard. Chain Numbering: Chain pitch is defined as the distance between any three consecutive rivets divided by two. -Extended Pitch Design This design doubles the pitch of standard chains. Roller Chain Size Chart: Once you have your measurements, compare them to our roller chain size charts. 325 inch, 3/8 inch, 3/8 inch low profile, and 0. Pitch Measurement: The tool easily identifies the chain pitch, which is crucial for matching the chain to the sprocket and ensuring smooth operation. The OREGON chain is available in four different pitch sizes: 1/4″,. The most reliable method for determining chain pitch is to Stihl chainsaws’ most common chain pitches are . Simply select the chain pitch and the corresponding results will display showing the chain sizes and pitches in feet and metres, as well as the number of pitches in 25 feet, 5 metre and 10 feet boxes along with the number of connecting links from the pitch of chain. The pitch of a chainsaw chain refers to the distance between the drive lugs. Tensile Strength kN {kgf} 16. The purpose of this is for the chains to be used in conveying or elevating applications with the ability to suspend a through-rod or another device between the chains. PD = Pitch SIN (180/Nt) Outside Diameter (OD) The measurement from the tip of the sprocket tooth across to the corresponding point directly across the sprocket . This guide explains bike chain compatibility, speeds, lengths, and types. 85 5. All Red Boar Chain chains are solid roller, #120 and larger are solid bushing solid roller ensuring a longer wear life than split roller and split bushing chain. 9,5mm, whilst our two-stroke karts use a #219 chain which has a much smaller pitch of 7,774mm. It reduces weight and the number of links, while keeping strength. Tolerances on caliper diameter of sprockets : The pitch on a chain i. The suffix, as with European standard chain, refers There are many chains that have the same pitch, but have different roller diameters and widths. 404” The best way to determine the pitch of your chain is to look for a marking in one of the following places: On your bar (often it is incorporated into the part number on your bar) A file chart is used to determine the size of the file that will sharpen the cutter correctly. These diameters and caliper factors apply only to chain of 1-inch pitch. Nitro Chain, LLC. A 520-118 chain has a pitch of 520, and it has 118 chain links. (odd teeth) = Caliper factor × Pitch − Roller Dia. PITCH. Therefore, one-pitch offset links are not suggested, especially for frequent on-and-off operation, heavy impact loads, and high-speed Pitch: The distance between the centers of two consecutive pins. 325” 3/8 (This is standard 3/8 as opposed to the 3/8lp). The MS 170, MS 180, and MS 250 models use a 3⁄8” P pitch, . 175 = 44. Carlton ® chain is made in several pitches - 1/4" is the smallest, 3/8" is the most popular, . Belts. Driven Load Condition Number of roller chain strands Chain Speed Chain Speed f2 f3 f4 Roller Chain Quick Selection Chart f1 : SERVICE FACTOR CONCISE SELECTION DATA f2 : MULTI-STRAND FACTOR f3 : SPEED COEFFICIENT f4 : SAFETY FACTOR 93 Technical Information BS Single Pitch ANSI Single Pitch ENGI. Chainsaw Chain Pitch. Does chain size depend on bar length? Chain Pitch When calculating the chain’s pitch, you’ll need to get the overall distance between 3 rivets and divide them into two. Understanding the relationship between file size and chain pitch is paramount. Our roller chains are specifically designed for maximum strength and durability. Drive lugs are also called drive links. Chainsaw Bar and Chain Size Chart. You can share specific dimensions of your chains or sprockets so we are one step closer to providing you with the exact chain you need for your next project. For example: 140 = 14 × 3. 404”. Caliper diameter for even number of teeth = bottom diameter. About Us. com • advancing chain technology ANSI Standard Roller Chain Standard 25 1 Chain No. 0. British Standard Roller Chains ChainNumber Pitch Roller PinDiameter Side PlatesHeight Over-All Pin & Cotter Transversepitch Weight Tensile Strength Width Diameter P b1 d1 d2 g a1 e mm Kg/m N 04B-1 6. The distance from the center of one pin to the center of the next pin, also known as the "pitch" of the roller chain. Hollow Pin Chains American Standard 23 Hollow Pin Chains American Standard Double Pitch 24 Hollow Pin Chains British Standard 25 Motorcycle Chain Standard & Heavy Duty 26 Motorcycle O-Ring Chain Standard & Heavy Duty 27 Industrial O-Ring Chain 28 Agricultural Roller Chain 29 Agricultural Roller Chain Attachments 30-31 Pressed Steel Detachable fit or tolerance specifications, giving SKF chains a precisely spaced pitch and a near perfect fit. To find the chain size on a Stihl chainsaw, check the guide bar for model numbers or measure chain pitch and gauge; common sizes include 3/8″ and . 325″ pitch chain. 404 inch. It is ideal for lighter, long-distance tasks. BSA/Triumph Bantam/Cub and similar earlier lightweight British motorcycles need a Original 1/2 X 3/16 inch chain. Sprockets come in a wide range of tooth counts for each ANSI chain size. 1 25 85 40 598 hub welded sprockets 15 135 122. Outer Diameter (OD) Pitch (P) Pitch Diameter (PD) RW Roller Ø (RD) Created Date: 12/21/2015 9:31:32 AM chain, i. Note: ASME/ANSI 60 and larger chains are available as cottered or riveted type design. ; Inner Width: The width of the chain that fits over the sprocket teeth. pitch, inside width and roller diameter, is more robust with a higher breaking load and is recommended for use where more arduous conditions may be encountered. There are four common chain pitches: 3/8 Low Profile (Commonly referred to as 3/8lp). For example, if you measure the distance between the centers of two consecutive rivets and find it Duplex roller chains accorDing to Din 8187-1 (european type) corresponding to ISO 606 Chain Pitch Inner width Inner link width Outer plate width Roller Ø Pin Ø Trans-verse pitch Plate height Projec-tion over connec-ting link Width over pin Bearing area Minimum tensile strength DIN Minimum strength Weight Connecting links DIN p b 1 b 2 b 3 d 1 Heavy Duty BL series leaf chains incorporate link plates from the next larger size pitch ANSI roller chains. Sprocket Pitch Diameter Formulas and Calculator. Roller diameter impacts load capacity and wear resistance, while width determines compatibility with sprockets and other Explore our detailed Roller Chain Size Chart to find the perfect fit for your mechanical needs. 05 weaker than plain chain and two-pitch offset links. 7 millimeters. Fear not! The guide offers a simplified breakdown, making it accessible even for beginners. 5 1. If you’re trying to find out the right chain size for your motorcycle, then you can refer to your owner’s manual. 1M. Ideal for a wide range of loads, speeds, and designs. Understanding their significance empowers professionals to make informed decisions, balancing factors like load capacity and speed. Available Online . Catch us at FEMA 2025 in Fort Myers, Florida, April 7–10 ANSI Standard A-Type Double Pitch Roller Chain; ANSI Standard C-Type Double Pitch Roller Chain; Roller Chain With Attachments; Double Pitch Roller Chain With Attachments; ISO British (Metric) Standard Roller Chain ANSI Roller Chain Sprocket Diameters and Dimensions per. Creating a comprehensive Chainsaw Chain Sharpening Angle Chart involves listing the common chain types and the recommended angles for Roller chains are commonly used in industrial applications, power transmissions, and agriculture. Royal Ave. Dimensions: Inches. Shop Roller Chain. Roller Chain Size Chart See chain link sizes with a helpful chain link sizes chart which includes the dimentions for chain link sizes. Reliable. STANDARD series CHAIN-chain descriptions and dimensions Dimensions in mm * Maximum values are shown. Since it was innovated in 1880, this versatile chain has been meeting the need of the hour for industries such as food American Standard (ANSI) Roller Chain (All dimensions in inches) Triple Roller Chain ANSI Chain No. Caliper Dia. The sprocket pitch diameter is an imaginary circle through which the chain pin centers move around the sprocket. g. The tool includes common pitch sizes for easy reference. 05B has a standard 0. For such guide bars, STIHL yellow-labeled bars are listed. Chain size charts serve as indispensable tools for this purpose. Saw chain pitch (Pitch) : The distance between any three consecutive rivets divided by two. Shop Belts Online; no. Contact Us. Leaf chain dimensions chart per ASME B29. 3. 00 1. The chain pitch refers to the distance between any three consecutive rivets divided by two, and it determines the size of the chain. 315'' (8mm) pitch. Below is a sprocket diameter chart we've put together to help you identify the sprocket diameter you need based on the chain size and tooth count. 70mm through 25. Using a Larger pitches are more robust with higher tensile load capacity. No. on the two-pitch offset link. 219 pitch chain generally does not come with a removable link due to any removable links compromising the already close tolerance chain. Link Lenght (Pitch) The bike chain link pitch (distance between pin centers) is standardized and equals 1/2 inch or 12. 40mm. This chain’s side plates have greater depth Please note that some chains that are classed as a roller chain do not have rollers, such as ANSI sizes #25, #35, #45, #65, #85, #105 as well as other bushed roller-less chains. 050'' About Us. This is a list of replacement chain information, sorted alphabetically by brand. Look for a chain designed for your chainsaw model and make. 236'' up to 6. This is Use Rotatech's comprehensive Chainsaw Chain Identification Chart to find the perfect match for your cutting needs. 2 25 95 40 676 Please wait while your request is being verified These three measurements will give you all of the information you need to get the perfect chain for your chainsaw. This measurement gives insight into how closely the chain’s teeth are spaced. Single Strand ANSI Roller Chain Chart. What is Chain Pitch? Chain Pitch is the size of the chain, and is defined as the distance between any three consecutive rivets divided by two. Here's how to decipher the pitch from the chain number. 5" width. Horsepower Ratings ASME/ANSI RS Roller Chain RS ROLLER CHAIN RS11 ˜ RS240 1. Motorcycle and ATV chains have a pitch number of either 4, 5 or 6. A leaf chain consists of a series of link plates assembled with pins in such a way that the joint is free to articulate between adjoining pitches. Width Extension k Ametric® Chain No. Compare pitch, inner width, roller diameter and other specifications of ANSI, Heavy Duty, Metric and other types of chains. Every part and process is subject to tight quality controls with frequent checks to conform to toleranc-es and standards. 063". ; Roller Diameter: The diameter of the roller that facilitates the chain's movement. This makes them a budget-friendly choice for many industries. Four-stroke karts tend to use a #35 chain with a pitch of approx. Roller Chain Size Charts; Roller Chain Temperature Ratings; Sprocket Diameters; Blog / News; Company Information. 2 25 65 40 450 12 110 98. (The rivets are the circular pins holding the chain together). 00 2. Pitch is most commonly expressed in inches, even when other chain dimensions may be in metric units. The standard roller chains have a reliable mechanism for transmitting power to various moving parts (Skip straight to the Roller Chain Size Chart). Chains, bars, and sprockets can easily The chain pitch is often stamped on the side plates of the chain – clean the chain and see if you can spot the number – e. The pitch of the chain is the distance between the centers of three consecutive rivets, and it is usually measured in inches. To calculate the pitch, multiply the number by 3. 325” and 3⁄8” pitch chains in . the distance between consecutive links and indicated by P in the sketch below, is either specified in millimetres or as a chain number. Chainsaw files must match the pitch of the chain to ensure efficient sharpening. Pitch p Between Inner Plates b1 Roller Diameter d1 Chain Width l Connector links are wider than chain sections. Deep Link Chain Hollow and solid pin chain has an optional side plate design known as deep link. Saw Chain Family Specification Chart — Servicing Dealer. /min. For those new to chainsaw maintenance, interpreting the chart might seem daunting. 523. 404" pitch. Compare pitch, roller diameter, inner width and other measurements for different Check out our Metric Roller Chain Size Chart to identify your metric roller chain and then shop chains. Read this guide to learn more about chainsaw chain sizes chart and become a real pro. Durable. 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. If the distance between the centerlines of the two pins in a link is 4/8th of an inch, the chain has a pitch number of 4. Woodcutting is an excellent hobby to get into, and it is fun too! Read this guide to learn more about chainsaw chain sizes chart and become a real pro. To work out the pitch measurement you are going to need a tape measure. Oregon® chain is available in several pitches - 1/4" is the smallest, 3/8" is the most popular, and 3/4” is the largest. 050” gauge chain. 050” and . Click the link on the chain size you need to see our selection, which often includes multiple lengths, connecting links, and offset links. 050″ (1. Multiple strand chains are available with slip-fit (standard) or press-fit center plates. The second number refers to the chain being a roller chain, 0 = roller chain. Each part of the code signifies different Leaf Chain Dimensions Chart. ; Pin Diameter: The diameter of the pin that connects the links. These sizes refer to ANSI (American National Standards Institute) Roller Chain Standard chain dimensions. Pitch is important because the drive sprocket must be the same pitch as the chain When there is no stamping on the side plate, we have to really utilize all of the measurements gathered. Whether you are trying to figure out how to measure chain pitch or simply need to reorder a known part, you can trust that your request will be handled promptly and you will receive the correct items in good condition. Choose the right chain type: Chainsaw chains come in a variety of types, including full chisel, semi-chisel, and low-profile chains. The chain width (W) is the distance between roller link plates and approximately 5/8 x P. Please read and follow the yellow warning information that is included on the guide bar package. Our online Pitch Conversion Tool helps our customers identify a range of information just by selecting the pitch. ISO No. It is This chain number indicates the chain pitch. -Cost-Effective Solution With fewer materials used, double pitch chains offer a longer wear life. Roller Chain Size Chart With Complete Dimensions +1. Belgium, WI The first number is the pitch size in 1/8 inch, ie 4/8 = 1/2 inch pitch. #60 chain has a 3/4" pitch and a . 404” is the largest. 8. e. 043”, . 315" (8mm) 0. The gauge, on the other hand, is the thickness of the drive link where it fits into the guide bar. L. The file size simply matches the depth gauge code number, alternative depth gauge markings, or pitch of a chain to the right file size. Roller Type "R" indicates an oversized carrier roller. This is because metric equivalents, although having the same pitch has different size rollers which will not correctly seat into the sprockets and will very quickly knock the tops off the sprocket teeth. If it’s a used bike, then you may have to check the size-stamping on your current chain. A 5 replacing the 0 would indicate a bush chain. It does sound a bit complicated but luckily you don’t need to memorise that to pick the right chainsaw chain! There are 6 pitches available: ¼”, ¼” P, 3/8” P, 3/8”, . 404" chain, STIHL yel-low-labeled chains are listed which have reduced-kickback Chain pitch refers to the size of the chain and is determined by the distance between any three consecutive rivets divided by two. 465 S. For any other pitch, multiply the values given below by the pitch. (even teeth) = Pitch Diameter − Roller Dia. #120 Chain. Caliper diameter for odd number of teeth = PD x (Cos (90deg/N) - D r. These two dimensions are called out as "P" and "B1" in Chains are generally categorized by pitch and length. The Stihl MS 250 chainsaw, on the other hand, requires a 25-degree sharpening angle for its 0. The chain pitch refers to the distance between the chain’s links. The roller diameter (D r) is approximately 5/8 x pitch (P). Tough. Interpreting the Chart for Novices. 325″, If you are replacing a Stihl® chain, you can look at the numbers on the side of the chain to determine pitch, gauge, and other characteristics of the chain. 2 25 60 40 367 11 102 90. 175 mm. When you need the best quality roller chain and accessories available, contact the professionals at PEER Chain at 800-523-4567 or fill out our quick online contact form. Stihl Chainsaw Chain Identification. 75 inches. Ideal for chain wholesalers and manufacturers. 1 25 80 40 463 13 118 106. 325”. Pitch: The distance between the centers of two consecutive pins in the chain. Please visit our roller chain size chart for assistance with identifying the appropriate roller chain size, including a ‘How to measure roller chain’ video. Struggling to identify the right chainsaw chain? Pitch: Gauge: Rotatech Chain: Carlton: McCulloch: Stihl: Windsor: Husqvarna: EM: Dolmar: Tri-Link: 325: 0. , then a chain that is one size smaller than selected with the Double-Pitch Roller Chain: As the terminology indicates, the pitch of double-pitch roller chain is doubled while other key chain dimensions are mainly the same as single-pitch roller chain dimensions. The pitch of a file is the distance measured between three rivets, then divided by two and it is indicated in inches. The diameter and width of the roller. 3mm) B1SFT (Full Chisel) For example, the Stihl MS 180 chainsaw uses a 30-degree sharpening angle for its 3/8″ pitch chain. All Products . Refer to the below chart to see the different leaf chain series and their pitch measurement. Use a sprocket ratio chart or contact us today! X. When measuring a roller-less chain use the bushing diameter as the roller diameter and inform your customer service representative that you have a roller-less chain. of Strands Pitch Inside Width Min Roller Diam Max Plate Height Max Inner Plate Thick Max Outer Plate Thick Chain Pitch And Gauge. 196 6 www. The pin diameter Leaf chain dimensions chart; Reference: ASME B29. Pitch. Normal wear can make it difficult to accurately measure chain gauge on a worn chain. Roller Type "R" can be manufactured with plastic Find the dimensions of various roller chains in inches or millimeters. Inquire today! Find the pitch, roller width, roller diameter, plate height, and plate thickness of many types of roller chain using our convenient size chart. 058” and . Overall dimensions may vary Make sure you select the chain with the best fit by referencing the size charts below. Using a ruler or measuring tape, measure the distance between three of the rivets on your The following pitch sizes are available on chainsaw chains, and they are usually measured in inches: 1/4 inch, 0. By understanding these measurements, you’ll be Chain Pitch The distance between any three consecutive rivets divided by two is referred to as chain pitch. The "standard" lineup of chains consists of the most commonly used roller chains in the world today. Inner Width: The distance between the inner link plates. 1 25 80 40 528 14 127 114. 325”, . Pitch Diameter (PD) The diameter across to the pitch circle which is the circle followed by the centers of the chain pins as the sprocket revolves in mesh with the chain . 4 pitch: Measure 4/8” between the pins. Click to learn more from USA Roller Chain! Dimension shown is bushing diameter Roller Type "S" indicates a standard roller. 050", . Chain Size: Pitch: Roller Width: Roller Diameter: • Extended Pitch Chains • Hollow Pin Chains • Made to Order, Special Chains • Mini Pitch Chains • Nickel Plated Chains • Oilfield Chains • Plastic Bush Chains Pitch/Inside width chart This simple guide is designed to help quickly locate your chain in the catalogue. Roller chain is made in a many pitch sizes ranging from 0. What are the benefits Key Terms Explained. For 3. Below is a table that summarizes common Stihl chainsaw models and their respective standard chain sizes, including pitch, gauge, and number of drive View Our complete 05B metric roller chain dimension chart. Open the catalog to page 2 To determine the correct file size for your Stihl chainsaw, you need to consider the type of chain you are using and the pitch of the chain. Stihl chainsaws typically use chains with a pitch of 1/4″, 3/8″, or . Catch us at FEMA 2025 in Fort Myers, Florida, April 7–10 The key measurements Search roller chain sizes by the pitch dimensions. 058” gauge. We also include resources and more! X. renoldjeffrey. Chain & Bar Selector Chart. LOCAL: Chain pitch refers to the size of the chain and is determined by the distance between any three consecutive rivets divided by two. Mechanical Power Transmission . This is the primary factor in determining chain size. The numbers to the left of the right-hand digit refer to the chain pitch in eighths of an inch. 1-2011 - Precision Power Transmission Roller Chains, Attachments, and Sprockets How to measure the chain pitch. It is important to note that the sharpening angle is only one aspect of chainsaw sharpening. 5-inch pitch is standard these days. Find the dimensions and specifications of various roller chain types and sizes with this comprehensive chart. A Stihl Chainsaw Chain Size Chart. Single Strand Roller Chain Dimensions. The pitch diameter is the fundamental design geometry that Nominal Driver Speed (rpm) HP per chain: 25: 75: 150: 300: 600: 900: 1200: 1800: 2400: 1/2: 60: 40: 35: 35-----3/4: 80: 40: 35: 35-----1: 80: 40: 40: 35: 35----1-1/2 ANSI Roller Chain and Sprocket Dimensions. The 3/8-inch pitch size is usually the most common size of the pitch Find the pitch, roller width, roller diameter, plate height, and plate thickness of many types of metric roller chain using our size chart. Utilizing a chainsaw bar and chain size chart can greatly aid Note that “C” is in chain pitches, thus: C = Center Distance (inches)/Chain Pitch (inches) The required chain length in feet (L) may be obtained from: L = (Chain Length in Pitches x Chain Pitch in Inches)/12 Slow Speed Selection If the linear chain speed is less than 160 ft. idtvr byqn tdin frntnk jzny wgne usml wnizs yskwpu gia ujpdp llyx qeadx xnxk daioo