Applications
Sprockets The standard sprockets used for RF Conveyor Chain are used for RF Bearing Roller Conveyor Chain. Selection and Handling (1) The design of standard bearing-roller spacers is similar to spacers used in ordinary ball bearings. They are not water- and dust-proof. Oil- or labyrinth-seals can be installed (on a made-to-order basis) if the chain is going to be exposed to water or dust. Please consult the chain manufacturer. (2) A grease nipple can be installed on the pin head to provide grease to bearing parts (only certain sizes are available). (3) The working temperature is limited to -20 ° to 80 ° C. The limiting factor is the spacer. When a temperature-resistant material is used for the spacer, operating temperatures may be expanded. Contact the manufacturer for additional information. (4) To reduce the impact of the bearing roller as it engages the sprocket, use sprockets with greater numbers of teeth. For example, if the chain speed is 30 m/min., use a 10-tooth sprocket. Consult with the manufacturer if the chain speed is greater than 30 m/min. (5) Do not select Bearing Roller Chain based on roller allowable load alone. In some applications, you also need to verify the strength of attachments to prevent breakage. Refer to the manufacturer’s catalog for additional information. Chains for Special Applications (1) Outboard Bearing Roller Conveyor Chain is used on assembly lines (Figure 6.6). In this type of chain, bearing rollers are installed on the outside of the chain, making it ideal on long assembly lines, like auto lines, where work is performed on the conveyed products along the line. Outboard Bearing Roller Conveyor Chain is easy to support on the return side. If you combine the design features of Outboard Bearing Roller Conveyor Chain and Bearing Bush Chain, you can create a chain with very, very low elongation (practically nonexistent) and minimal rolling friction. (2) Waterproof-bearing Roller Conveyor Chain (Figure 6.7) has heat-treated bearings made of 403 stainless steel, and includes oil-seals and grease nipples. Originally this chain was developed for the “shower test,” which checks the leakage in automobile manufacturing. It can be used in any application where the chain is exposed to water spray. NOTE: Charge with grease regularly.
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