Support Spindles

How do you select a support spindle for a rotary table?

A support spindle is designed to support the outboard end of a part or fixture. The center height of the support spindle will match the center height of the rotary table. The application will determine what type of support you will need. Support spindles can be a bearing only or may be supplied with pneumatic or hydraulic brake. If a fixture is being supported and machining will be done on the support spindle side then a unit with a brake should be used. The brake is normally plumbed into the rotary table and will clamp at the same time the rotary table is clamped. If the rotary table has a pneumatic brake, then the support spindle will be pneumatic. The same thing will be true for a hydraulic brake on the table, the support spindle will have a hydraulic brake. To determine the total braking force for the system, add the brake force from both units.

Example of a 4^th Axis Rotary Table with a Hydraulic Support Spindle Installed on a VMC

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