It's superior to a free weight machine because it's safer for muscles and joints and can be used without a spotter. Utilizing a double circuit linear motion ball bearing system, the load is supported by several lines of balls inside return circuits which infinitely circulate com one side of the retainer to the other. The Best Combination of Raw Power and Precision Design. Ultrasonically tested, recirculating ball bearings offer smooth, straight-line accuracy with exceptional load capacity. The Linear Bearing will handle heavy and consistent use with calm, even-handed durability.
Smooth operation is the key.
Smooth operation is the key. It's superior to a free weight machine because it's safer for muscles and joints and can be used without a spotter. Simply lock the bar into position and add your weights. The Best Combination of Raw Power. It's superior to a free weight machine because it's safer for muscles and joints and can be used without a spotter.