AA Double-Sided V-Belt Size Chart
Tip: Click a SKU to visit that specific AA Double Sided V Belt product page. Click an outside length to browse MDS of Michigan products with that length.
AA Double Sided V Belt Size Chart
What Is an AA Double Sided V Belt?
An AA Double Sided V Belt, sometimes called an AA hex belt, has V shaped driving surfaces on both sides. Unlike a conventional V belt, which is designed to engage pulleys on one side, a double sided V belt can transfer power through either side when used with a properly designed pulley arrangement.
This construction is especially useful when a single belt follows a winding path around several pulleys. The AA designation identifies the belt section; the number that follows identifies the nominal belt size. For example, AA45 has a listed outside length of 48.4 inches, not 45 inches.
Outside Length vs. Belt Part Number
The number in an AA belt part number should not be mistaken for its outside circumference. For the sizes listed here, the outside length is 3.4 inches greater than the number in the SKU. For example, AA60 has an outside length of 63.4 inches, and AA100 has an outside length of 103.4 inches.
If you are replacing a worn belt, check the printed part number if it is still legible. If you are measuring the belt instead, confirm which length measurement you have and compare it with the equipment manufacturer’s specifications. Outside length, inside length, and effective or datum length are different measurements and should not be used interchangeably.
Common Applications for AA Double Sided V Belts
AA Double Sided V Belts are used in agricultural machinery, lawn and garden equipment, material handling systems, and industrial equipment with serpentine pulley arrangements. Their two driving surfaces can be useful in mechanisms that require a belt to drive multiple pulleys or accommodate different directions of rotation within the same drive system.
Before ordering, verify the AA belt section, original part number, outside length, pulley groove compatibility, and equipment requirements. An ordinary single sided A section V belt is not automatically an interchangeable replacement for an AA double sided belt.
Shop AA Double Sided V Belts Online
Need an AA Double Sided V Belt for agricultural equipment, a serpentine drive, or another power transmission application? Select your belt from the size chart above or contact MDS of Michigan for help identifying the correct replacement.
MDS of Michigan is a family owned and farmer owned power transmission supplier serving customers from West Michigan and beyond for over 40 years.
