Parker Majestic offers a wide range of belt driven and motorized box and cartridge spindles for a variety of applications. A full range of standard spindles is available for applications such as:

• High speed machining
• Gun reaming (squirt out type as well as motorized servo spindles with "ramp-up" capability)
• Generating head applications
• Facing head applications
• Cylinder boring
• Machining centers
• Gear reduction spindles for slow speed face milling
• Quill retract spindles
• Headstock and tailstock arrangements
• Grinding spindles
• Multi-spindle machining with spindle cluster (fixed and steerable)
• Multi-spindle machining with heads
• Balancing spindles
• And more

Parker Majestic works with customers to select the best spindle fit for the application. We work around existing engineering wherever possible. Our engineers operate the latest and most powerful mechanical engineering CAD packages available on numerous workstations.

Approval drawings are submitted promptly to customers for review and to ensure mating parameters are correct. Special designs are based on previous experience, as there are few applications that Parker Majestic has not provided a solution for in the past.

Appropriate applications have L10 theoretical bearing life calculations carried out on bearing life analysis software. The theoretical figure is shown on the spindle drawing. For transfer line applications Parker Majestic likes to see L10 lives in excess of 20,000 hours to give the automotive user premium reliability and uptime. Finite Element Analysis (F.E.A.) of spindle systems can be modeled on our in house systems with the results supplied to spindle customers.

In addition to the belt driven range of spindles, Parker Majestic offers a full range of motorized spindles with non-vent, fan or water cooling. Parker Majestic works closely with the motor manufacturers to ensure HP, torque and speed requirements are met. We also supply frequency inverter packages for variable speed requirements. Where liquid cooling is required, a stand alone coolant chiller can be supplied with an integral pump to recirculate coolant for removing heat from the motor. HP, Torque and Speed curves can be supplied.

High-speed spindle packages use oil/air lubrication, ceramic bearings or other forms of lubrication. Parker Majestic offers a patented lubricator which incorporates superior features developed for specific high speed spindle requirements.

Bearing packages are selected to suit customer applications. Parker Majestic has experience with:

• Angular contact radial ball bearings
• Ball bearings
• Needle thrust bearings
• Hollow roller bearings
• Solid roller bearings
• Tapered bore roller bearings
• Tapered roller bearings
• Hydro-dynamic oil film bearings
• Hydra-static oil bearings

The method of lubrication recommended is optimized for the particular application. When the application permits it, spindles will be grease packed and sealed for life using the latest synthetic greases. As Dn values (bearing bore size x rpm) rise, ceramic rolling elements and oil/air lubrication systems may be required. On slow speed gear driven heads oil splash or recirculating oil may be used.

Parker Majestic also specializes in the design and manufacture of precision spindle clusters, and where required to achieve capability, can incorporate temperature control, steerable spindles, drive system engineering, non-influence belt drives and more.

Parker Majestic offers customers a "total engineering package" to meet the exacting requirements of today’s special purpose machining needs.