| HOLO-ROLŽ bearings use hollow cylindrical rollers instead of solid
rollers. Hollow rollers are preloaded within the bearing between the
inner and outer rings.
Preloading the hollow rollers produces
several advantages over regular bearings, including:
- Higher speed ability,
- High radial stiffness,
- Very low radial run out,
- Vibration damping.
All these qualities are enhanced in HOLO-ROLŽ bearings because the
preloaded rollers are positively driven at all times by the rotating
inner ring and cannot skid or twist.
HOLO-ROLŽ bearings are used
in all types of machine tool spindles including turning, milling and
grinding machines. Work head spindles also benefit with these highly
accurate bearings.
For over twenty years, hollow roller bearings
have been used in centerless grinding machines. Hundreds of machines
have been rebuilt with HOLO-ROLŽ bearings in both the regulating and
grinding wheel spindles. Increased accuracy and productivity attests to
the advantages of these special bearings.
|
| HOLO-ROLŽ bearings are designed for light load applications, as in most
machine tool spindles. Including all types of grinding, machining, and
milling spindles. The radial load rating, listed for each bearing size,
is the maximum load that will allow all rollers to remain preloaded. For
best results, the operating load on the bearing should not exceed
one-half this rating.
This bearing should not be used for very
heavy load applications, such as rolling mills or printing presses.
|
|
