Sherline Dovetail Base Headstock with 90V DC Motor

The robust Sherline headstocks, derived from those used on the Sherline lathe and milling machine, are crafted from extruded 6061-T6 aluminum with a black anodized finish. They come with your choice of spindle (3/4-16 #1M taper or ER-16*). All Sherline Industrial spindles boast lifetime lubricated bearings with adjustable preload, rated Class 5 for enhanced accuracy, tighter tolerance, smoother operation, and cooler running. The bearings, except in the 3C headstock, are 6004-VV C3P5 ABEC 5, capable of continuous speeds up to 4,000 RPM with a factory preload adjustment of .0002, or up to 10,000 RPM with a slightly looser setting of .0003. Note: Collets for the ER-16 spindle are available through MSC Industrial Supply Co. or other tool supply sources. Standard features include a brass gib on the dovetailed base, mounting point for saddle nut on Sherline leadscrews, spindle bearing dust cover washer, and ER-16 collet nut with ER-16 spindle headstocks. To mount, lightly lubricate the dovetailed surfaces, hook the headstock base over the dovetail, attach the brass gib using provided screws, and tighten set screws to lock gib adjustment screws in place. Optional Electroless Nickel plating is available for rustproofing. Spindle Precautions: These spindles are light duty, with a .405 (10 mm) through hole for long stock versatility. They are not intended for long or out-of-round parts at high RPM, and dust or coolant spray can shorten bearing life. The powerful 90-Volt DC motor offers maximum torque at low RPM, smoother and quieter operation than AC/DC motors, and a V-step pulley with two positions for varied speed and torque. Standard motor features include 1/2 HP, 90-volt high-torque DC motor, 2-step V belt pulley, fiberglass-reinforced urethane drive belt, variable speed electronic speed control (70-2800 RPM), load compensating circuit, and an eight-foot, three-wire power cord.

• Headstock Details: Based on Sherline lathe/milling machine headstock, made from extruded 6061-T6 aluminum with black anodized finish, available with 3/4-16 #1M taper or ER-16* spindle
• Spindle Features: Lifetime lubricated bearings, Class 5 accuracy, adjustable preload, up to 4000 RPM continuous speed, optional looser preload for up to 10000 RPM
• *Note: ER-16 collets not included, available through MSC Industrial Supply Co. or other tool supply sources
• Standard Headstock Features: Brass gib, fits Sherline steel dovetailed bed/column, mounting point for saddle nut, spindle bearing dust cover washer, ER-16 collet nut (with ER-16 spindle)
• Mounting Instructions: Lubricate dovetailed surfaces, hook headstock base over dovetail, attach brass gib, tighten screws evenly, lock gib adjustment screws
• Optional Rustproofing: Electroless Nickel plating available for spindles at additional cost
• Spindle Usage Caution: Light duty, not intended for high RPM rotation of long or out-of-round parts, dust and coolant spray can damage bearings
• About the 90-Volt DC Motor: High torque at low RPM, smoother and quieter operation than AC/DC motor, two-position V-step pulley for variable speed and torque
• Motor Specifications: 1/2 HP, 90-volt DC motor, 2-step V belt pulley, fiberglass-reinforced urethane drive belt, variable speed control (70-2800 RPM), load compensating circuit, accepts 100-240 VAC, 50/60 Hz input, eight-foot power cord