Metric Sprockets Overview
TL Taper Bushed Metric Sprockets
TL Sprockets are stocked in a wide variety of sizes which includes ISO 06B, 08B, 10B, 12B, 16B and 20B chain sizes (3/8 to 1-1/4” pitch) for single, double and triple chain. These mount with standard TL tapered bushings from 1008 thru 5050 (i.e., thru a 5” or 125mm shaft diameter). TL Sprockets can be found in an array of diameters to support various software speeds. The more popular sizes are stocked with hardened teeth. The C45 material, standard steel sprockets, allows for induction hardening of teeth. So all can be temperature treated Hardened Teeth on request. The TL Taper Bushed Sprocket offers a accurate concentric fit to the shaft. As the TL bushing screws are tightened, the bushing compresses around the shaft safely. Standard hex wrenches will be the only tool required for set up or removal. Once the bushing installation screws are loosened and taken out, the screw is definitely re-used and threaded into the bushing removal hole. Tightening the removal screw will gently loosen the sprocket. PTI stocks both metric and inch bore TL bushings, a standard global design, which is why the TL sprocket is indeed versatile. Ease of installation, concentric shaft suit, ideal for higher speeds and large loads plus a cost-effective cost, make this the popular choice for new styles and replacement requirements. TL sprockets are usually less expensive than custom or finished bored sprockets. Hub Type Metric Sprockets Hub Type Metric Sprockets can be found with a minimum ordinary bore (pilot bore) and some share completed bore sizes. Any shaft size can be done with our custom made bore and keyway capability. Sprockets with hubs are typically fitted to the shaft as a clearance match. They are held set up with two set screws and a keyway. Clearance fits are popular for light loads and sluggish speeds. A press suit (or shrink fit to the shaft) is usually preferred for higher speeds or heavier loads as they match to the shaft more securely than a clearance suit sprocket. Depending on the clearance of the shaft suit, sprockets may work somewhat on the shaft causing possible fretting or shaft use. All standard hub sprockets are available with hardened tooth from share or on request. Press fits usually need the sprocket to be heated for installation to increase the bore. As a heated sprocket cools, it shrinks, conforming to the shaft with a good grip. A established screw secures the key. The TL Taper Bushed Sprocket will function like the press match sprocket and generally easier to install. Plate Type Metric Sprockets Plate Sprockets for single, dual or triple strand chain are an economical choice allowing for direct mounting to the customers’ hub or shaft. They are most regularly regarded for sprockets above 40 teeth and are available in an array of diameters. Plate type sprockets can be welded or bolted right to the users’ hub keeping devices compact and light-weight. They are available in single, dual and triple tooth configurations as well. Weld on Hubs A Weld-On-Hub is frequently used to simplify installation, especially large diameter sprockets. PTI stocks standard TL Weld-OnHub sizes. The Weld-On-Hub uses the typical TL bushings as perform most of the other regular drive components. TL Bushings are stocked in both metric and inch bores. TL Bushings for Weld-On-Hubs or TL Bushed Sprockets TL Taper Bushings for Weld-OnHubs and sprockets are stocked from 1008 thru 5050 sizes covering 5” or 125mm shaft sizes. TL Bushings are well suited for replacements and a modern option for upgrading clearance suit and press suit sprockets. TL Bushings are found in a wide variety of additional European and American regular drive products. Stainless Steel Metric Sprockets Stainless Steel (AISI 304L) Metric Sprockets provide corrosion resistance and allow wash-down capacity. These hub type sprockets could be given a completed bore and keyway. Stainless Sprockets cannot be hardened. PTI stocks sizes from ISO 06B thru 16B (3/8” -1” pitch) and from 12 to 25 & 30 tooth. Larger sizes available on demand. TL Bushed edition also on demand. Metric Idler and Double-Single Sprockets Metric Idler Sprockets are plate sprockets with a ball bearing for installation. These sprockets generally offer stress for the chain drive and can be utilized within a pressure arm assembly or separately mounted to position the drive. Stock sizes are for sale to ISO 05B thru 20B metric chain sizes. Double-Single Sprockets, popular on conveyors, allow 2 single chains on a single sprocket to regulate pairs of rolls or drive units that must index. Customized Metric or ANSI Sprockets Custom sprockets including huge diameter steel or cast iron devices for one, duplex or triple strand chain could be made to order. PTI typically continues some stock in our European warehouse, therefore delivery could be rather quick. Other custom sprockets sizes for Metric conveyor chain or ANSI chain are also possible. Drawings are favored to insure requirements are obvious. All are possible with custom finished bore.