In their basic form, bush chains are simply a roller chain without any rollers fitted.
One of the most common applications for bush chain is for use in Bucket Elevators. The vertical design of these elevators makes rollers redundant. Not only can a wider chain be used to increase the vertical stability and reduce bearing pressure, but the removal of the rollers helps reduce the overall weight therefore reducing drive energy requirements.
Another common area of application for bush chains is in the wood processing industry. Fine wood particles can mix with lubricants to clog the rollers and cause ‘flat spots’. As logging and wood processing conveyors run at low speeds, they do not experience rapid wear of the conveyor guide rails, from the rubbing of the link plates.
One of the specialist applications for steel bush chain is in the theme park industry, where steel bush conveyor chains are used to pull roller coasters and water rides. These structurally critical but rapid wear applications use a steel bush chain, over a roller chain, due to the environments in which they run (either outside or in and out of water). These environmental conditions corrode the chains, often seizing the rollers and causing roller flat spots. Many rides also use the steel bush itself as a mounting point for the carriages that the chains convey, something which would not be advisable on a roller chain.
Non Standard Options
- Non Standard Pitches
- Bush Only Chains
- Special Pins
- Surface Coatings (Zinc, Nickel, Sherardized etc)
- Non Standard Links
- Drilled Links
- Cleaning Flights and Cups
- Stainless Steel (Standard 300 series or 400 series hardened round parts
- Non Standard Round Parts (V Rollers, special sizes, through pin lubrication etc)
- Non Standard Attachments
- All types of sprockets & rings to suit
- Other Options Upon Request