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. The no-impact nature means there is less stress placed on the joints. The Best Combination of Raw Power and Precision Design.
Smooth operation is the key.
The Linear Bearing will handle heavy and consistent use with calm, even-handed durability. The Best Combination of Raw Power and Precision Design. Ultrasonically tested, recirculating ball bearings offer smooth, straight-line accuracy with exceptional load capacity. This reduces friction resistance, consumes less energy and attains a far lower starting friction level than all other conventional bearings. The Linear Bearing will handle heavy and consistent use with calm, even-handed durability.