A new shaft balancing collar that provides a fast and simple way to resolve out-of-balance conditions causing vibration in drive systems is being introduced by Stafford Manufacturing Corp. of Wilmington, Massachusetts. Stafford TrueBalance Shaft Collars feature two-piece construction and are supplied with five self-locking balancing set screws. Providing a simple solution for out-of-balance vibrating shafts, a user clamps the collar onto the shaft and adds set screws to offset the weight imbalance until satisfactory balance and smooth operation is achieved. Allowing the offset of out-of-balance vibrating shafts without requiring system disassembly, Stafford TrueBalance Shaft Collars can be adjusted from 0.024 to 0.170 oz.-in. Machined from steel, standard balancing collars are offered in 3/4" to 6" I.D. sizes and can be supplied as specials up to 12" I.D. Stainless steel is offered as a special.