How To Measure Chain Size For Windlass - Lewmar® - V4 Series 2750 lbs Gypsy Only Vertical Line ... - Lewmar should be able to help you find and decode it.. Let's get started on how to measure and cut chain. If you are using a rope to chain rode you must make sure the size of the chain and the size of the rope match the specifications for the windlass gypsy. The general rule of thumb is that you want approximately 1' of chain for every 1' of boat. Measure from center to center of where the chain roller would set between the teeth that will give you the pitch. Two possible gypsies (opt.1/2) are possible.
Requirements can vary, even for the same model of windlass, so always confirm the listed dimensions with your windlass manual. The key measurements that you need to grab are the pitch (p), side plate height (h) and thickness (t), pin. For example, 5/16 ht was formed from a 5/16 wire, while 1/2 ht was formed from a 1/2 wire. For example, if you have a 33ft/ 10m boat, a 700lb (270kg) pull windlass would typically be selected. If you have the sprocket and need the chain size to measure the chain size, if you have just the sprocket, use calipers to measure between the teeth.
Bbb or triple b has a uniform pitch short link, and works well on windlass gypsies. 6 or 7mm chain to 12mm rope. Measure the size of the length of link that would fit exactly in the gypsey and compare that to chain specs to order the correct chain. To start you can download & print a pdf chain template to record the chain dimensions that you measure. Common dimensions for ht chain are 5/16, 3/8, and 1/2. That'll be the only size/type of chain that will work. Our wildcats have a number cast into them that identifies what size and type chain your wildcat will accept. Measuring roller chain to determine the chain size is quite simple.
Use the selection guide to determine the general size of windlass to be used for your boat length and displacement.
Adjust the windlass size if necessary, based on your answers to questions two and three below. 6 or 7mm chain to 12mm rope. This is an outer plate on the pin link of roller chain. The most popular versions have a rope capstan to port and a chain wildcat to starboard. If you are using a rope to chain rode you must make sure the size of the chain and the size of the rope match the specifications for the windlass gypsy. Standard bike chain size stands for the regularly acceptable bike chain standard dimension. The fit of the chain to the wildcat is critical. Let's get started on how to measure and cut chain. The size of your anchor locker and available fall measure the depth of the anchor locker to determine the amount of fall available (distance between the top of the anchor locker and the top of the anchor rode when it is completely stored inside). So a 30' boat would want 30' of chain. Gypsy number chain descripton rope size (mm) rope size (in) rope description to fit windlass. The links of the chain are formed from low carbon steel wire, and the size of the link is actually referring to the size of the wire that was used. Requirements can vary, even for the same model of windlass, so always confirm the listed dimensions with your windlass manual.
The key measurements that you need to grab are the pitch (p), side plate height (h) and thickness (t), pin. As a first step, we should define the components of roller chain. How to measure chain there should be a marking on the windlass' chain gypsy saying what size and type it takes. Also, the rope must be spliced to the chain. The following is cut/paste right off the lewmar site for the cpx windlasses:
Also, the rope must be spliced to the chain. How to measure chain link sizes. Close the jaws of your caliper around the drive link and read the value on the scale to find this measurement. As a first step, we should define the components of roller chain. For example, if you have a 10m (33 ft) boat, typically a 270kg (600 lb) pull windlass would be selected. If the chain is not matched to the gypsy problems may occur, such as the chain jumping off the gypsy or the chain jamming. How to measure roller chain to identify size. Use our windlass selection chart found on page 2 to determine the general size of windlass to be fitted to your boat by using length and displacement.
Gypsy number chain descripton rope size (mm) rope size (in) rope description to fit windlass;
Measure one foot of the chain with a tape, then count the links. How to measure chain there should be a marking on the windlass' chain gypsy saying what size and type it takes. All models are available for many different chain sizes and types. Measuring roller chain to determine the chain size is quite simple. Common dimensions for ht chain are 5/16, 3/8, and 1/2. The size of your anchor locker and available fall measure the depth of the anchor locker to determine the amount of fall available (distance between the top of the anchor locker and the top of the anchor rode when it is completely stored inside). Use the selection guide to determine the general size of windlass to be used for your boat length and displacement. The most popular versions have a rope capstan to port and a chain wildcat to starboard. Most of the rope/chain units are sized for bbb. These measuring instruments are incredibly intricate and can measure the smallest details on your chain. Gypsy number chain descripton rope size (mm) rope size (in) rope description to fit windlass; The fit of the chain to the wildcat is critical. Using the peer part numbers, you can easily find the chain size and specifications on peerchain.com.
With your verniers first measure the 'wire size', that is the size of the wire that was bent to make into the links. If your chain falls between the measurement for 8mm din766 and 10mm din766, it may be 5/16 us specification. Bbb or triple b has a uniform pitch short link, and works well on windlass gypsies. For example, if you have a 10m (33 ft) boat, typically a 270kg (600 lb) pull windlass would be selected. In this video we discuss comm.
The size of your anchor locker and available fall measure the depth of the anchor locker to determine the amount of fall available (distance between the top of the anchor locker and the top of the anchor rode when it is completely stored inside). This is an outer plate on the pin link of roller chain. Measure the size of the length of link that would fit exactly in the gypsey and compare that to chain specs to order the correct chain. Using the peer part numbers, you can easily find the chain size and specifications on peerchain.com. Starting in the 1940's until the early 1990's there were three sizes of horizontal windlasses. G4 is the preferred chain for anchoring or windlass applications, and has twice the working load of bbb chain, so you can use a smaller size with the same strength. If you have the sprocket and need the chain size to measure the chain size, if you have just the sprocket, use calipers to measure between the teeth. Your problem if you have existing chain is that even though the chain diameter might be say 8mm or 10mm, there is no guarantee a windlass will work with it as there are differing link lengths.
How to measure chain there should be a marking on the windlass' chain gypsy saying what size and type it takes.
After you have obtained all the measurements, you'll be able to compare those dimensions to the chain size charts provided below. For example, 5/16 ht was formed from a 5/16 wire, while 1/2 ht was formed from a 1/2 wire. Lewmar should be able to help you find and decode it. If you do not have access to peer part number, then you may need to measure the chain. How to measure roller chain to identify size. This is 8.7mm chain with a 26.1mm pitch: Measuring the size of a chain requires a simple tool such as a set of calipers. The chain size and type is very specific to the different wildcats. This is the most important measurement to help you decide which style to select. Common dimensions for ht chain are 5/16, 3/8, and 1/2. Measure the size of the length of link that would fit exactly in the gypsey and compare that to chain specs to order the correct chain. The size of your anchor locker and available fall measure the depth of the anchor locker to determine the amount of fall available (distance between the top of the anchor locker and the top of the anchor rode when it is completely stored inside). The links of the chain are formed from low carbon steel wire, and the size of the link is actually referring to the size of the wire that was used.