Orders can be placed via telephone, fax, email, or other mail delivery services. Before processing each order a customer service specialist will review all requirements for accuracy and completeness. You will be contacted if additional information is required. If you have previously obtained a quotation please reference the quote number in your order. If you are purchasing items that you have purchased from Ramsey before, please reference the previous Ramsey sales order or invoice number. Pre-qualified buyers may purchase on open account, otherwise we accept Mastercard, Visa, or cash.
Ramsey manufactures chain and sprockets to replace or interchange with silent chain products from most manufacturers. In order for chains and sprockets to be fully compatible they must have the same pitch, tooth profile, width, and guide link assembly. Also, silent chain from different manufacturers typically should not be interconnected. This can void product warranties and impair proper chain operation. We recommend that Ramsey be consulted when replacing chain or sprockets from other manufacturers.
When replacing other types of drives with silent chain it is best to base component selection on known drive conditions ie. speeds, load, lubrication method, and shock loading. Ramsey can review your selections or assist you with the product selection process.
In most cases, Ramsey uses a part numbering system that is similar to the method used in the silent chain standard, ANSI Standard B29.2. Chain part numbers begin with a prefix, such as SC, RP, or RPV, which identifies the product type. This is followed by a number that indicates the chain pitch in eighths of an inch. The two last digits indicate the width in fourths of an inch. An exception to this rule is made for 3/16″ pitch where the following convention applies: The first two digits in the code denote chain pitch in 16ths of an inch and the last two digits indicate width in 32nds of an inch.
For example: SC 408 identifies a Standard silent chain Chain which is 1/2″ pitch and 2″ wide. A sprocket to run with this chain would be identified by the chain product code followed by the number of teeth in the sprocket. For instance, SC 408-21 identifies a compatible 21 tooth sprocket. Special chains and replacements for other manufacturers may use a different numbering system.