MOTION SYSTEMS HANDBOOK Manufacturers of Power Transmission and Motion Control Components
Concentric Maxi Torque
Stock and Custom Keyless Hub-to-Shaft Connection System Email or call to get your CMT Stock Products Catalog Order today. Ships today!
CHAINS ENDURE SUBOPTIMAL ENVIRONMENTS The environments of many chain applications are less than ideal. Some require clean operation, without the lubrication that can contaminate products. Others expose chain-driven machinery to weather, water, or chemicals. So, chain manufacturers offer several products to meet these challenges. Consider roller chain: One critical area where roller chains need lubrication is the pin-bushing contact zone. Self-lubricating chains stay cleaner because the exterior of the chain is free of excess lube. These chains also attract less dust and particulates than regular chains. Such roller chains are useful where oil contamination is a concern, including paper-product or woodprocessing industries. Specialty coatings and stainless steel can delay or prevent corrosion. Nickel-plated chains offer another alternative for chain coatings, providing some protection for mildly corrosive
environments. Stainless steel chains offer superior corrosion resistance ... but designers must be aware that regular stainless steels cannot be hardened in the same manner as carbon steel. Therefore, the load carrying capacity of stainless steel is lower than carbon steel. Proper chain maintenance requires periodic inspection. All chains must be checked for damage, wear, and chemical attack on a regular basis. Another issue is elongation due to wear. Eventually roller chains wear to so much that they necessitate replacement—typically at 1.5% (12.180 in./ ft) to 2% (12.240 in./ft) elongation. Chains may work until they reach 3% elongation but are at increased risk for suboptimal performance.
Power-transmission and conveyor chain attachment options K1 (B2 one-hole) and K2 (B2 two-hole) chains both have bent attachments on both sides.
Custom Synchronous Drives
Precise. Reliable. Cost Effective. A1 chain (sometimes called B1 one-hole chain) has links with one hole and a bent attachment. A2 is similar but always double pitch with two attachment holes per link.
WSK1 (WCS2 one-hole or WM1) and WSK2 (WCS2 two holes or WM2) is wide-contour chain with straight attachments on both sides.
Single-pitch WA1 (WCB1 one hole) chain and wide-contour WA2 (WCB1 two holes) chain both have bent attachments on one side and one or two holes per link.
Timing Pulley Stock
Guaranteed When You Need It. Custom Machine & Tool Co., Inc. (800)355-5949•sales@ cmtco.com www.cmtco.com
SK1 chain (sometimes called S2 one-hole or M1 chain) has straight attachments on both sides. SK2 (S2 two holes or M2) is the same but with two holes per link.
SA1 (S1 one-hole or M35) chain and SA2 (S1 two holes or M35-2) chain both have straight attachments on one side.
Precise. Reliable. Trusted. American Engineering • American Made © 2017 Custom Machine & Tool Co., Inc.
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DESIGN WORLD — MOTION
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