LORTONE NS8 (01) PDF MANUAL

The NS8 is a heavy duty, cast aluminum shop arbor specifically designed for wet grinding and polishing operations. It can be bolted to any workbench and the motor mounted from the rear or underneath. The NS8 Long Shaft has an extended shaft for when more clearance is needed.

Holds wheels up to 8″ diameter

Bench-top design

Rubber mounted sealed ball bearings

Cast aluminum body won’t crack or warp

Easy maintenance

The following parts should be received:

NS8 Arbor with pre-installed drive belt (1)

Accessory Package containing:

Flanges (4)

Aluminum Spacers (2)

Operators Manual and Warranty card (1)

Mount the Arbor to a solid work surface or bench using four 1/4″ diameter bolts (length of bolts will depend on the bench top). This arbor is designed to run with a 1/3 HP, 1725 RPM motor.

Install drive pulley on motor. A 2″ x 1/2″ pulley is suggested for most operations.

Secure motor to the bench or work surface allowing for belt length and adjustment.

Install belt and adjust motor to obtain correct belt alignment and tension. Do not overtighten the belt as this can lead to excessive noise and premature bearing wear. Adjust belt tension for 1/2″-1″ slack.

Mount wheels securely using appropriate flanges. For narrow wheels on the NS8, use the aluminum spacer between the retaining ring and the flange. Tighten shaft nuts securely.

To mount wheels on the NS8 Long Shaft, use shaft nuts on either side of the wheel flanges.

Use a water drip system or pump to provide coolant to the wheels. A splash shield may be required.

When grinding stone using Silicon Carbide wheels, an arbor speed of 1725 RPM gives good results.

For polishing, reduce the arbor speed by using the larger pulley on the arbor. Proper polishing speed depends upon the material but can best be accomplished at speeds from 850 – 1725 RPM as needed.

The Arbor should be cleaned periodically with a damp cloth and the belt checked for wear.

Replace damaged belt or bearing if required.

The following table lists the parts for the NS8 Heavy Duty Arbors: