The no-impact nature means there is less stress placed on the joints. It's superior to a free weight machine because it's safer for muscles and joints and can be used without a spotter. It's superior to a free weight machine because it's safer for muscles and joints and can be used without a spotter. The Best Combination of Raw Power and Precision Design. Ultrasonically tested, recirculating ball bearings offer smooth, straight-line accuracy with exceptional load capacity.
Smooth operation is the key.
This reduces friction resistance, consumes less energy and attains a far lower starting friction level than all other conventional bearings. Ultrasonically tested, recirculating ball bearings offer smooth, straight-line accuracy with exceptional load capacity. Smooth operation is the key. Smooth operation is the key. The no-impact nature means there is less stress placed on the joints.