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Part#: 62504
Weight: 8.1 lbs
Brand: _Unspecified

V-Belt Sheave‚ SDS‚ 2-groove‚ 6.35"OD

  • Industrial duty
Price: $83.95
- +
Need Help? Call 800-548-1234

Most manufacturers of stock V-belt sheaves use part numbers that are somewhat universal. You can find these numbers cast into the sheave or rolled onto the side of the rim, such as 2B5.4 SDS. In this case, the "2" indicates that the sheave has 2 grooves. The "B" indicates that it is designed to accept a "B" series belt (as opposed to a 3V or 5V) and has a "datum" (or "pitch") diameter of 5.4". Datum diameter may or may not be the same as the OD. Datum refers to where the load is being carried, and this relates to where the load center of the cords within the V-belt is positioned within the groove.

If you measure the diameter from where the cords are riding in the groove from one side to the other, this measurement will generally be less than the OD. In this example, the OD of a 2B5.4 actually measures 5.75" OD. Note that most industrial V-belt sheaves that are designed to accept "B" belts will also accept "A" belts, which have only a 1/2" top width versus 21/32" for the "B". They will ride lower in the groove and, therefore, will have a smaller datum diameter. The "SDS" in the part number indicates that this sheave accepts an SDS bushing with the particular bore size that you require.

What is the difference between a sheave (usually pronounced "shiv") and a pulley? Technically speaking, a pulley is used if the gripping surface of a belt is on the bottom, as in a conveyor belt, or automotive timing belt. A sheave is used if the gripping surface of the belt is on the sides, as in a V-belt. Nevertheless, "pulley" is often used as a generic term for both.

When you order replacement sheaves, it's always best to try to obtain the actual sheave part number. If it cannot be found, please supply 1) how many grooves; 2) outside diameter; 3) type of belt being used (ex. A, B, 3V, 5V); and 4) bushing style, model and bore (ex: SDS x 7/8")

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