Sherline Dovetail-Base Headstock w/ 90-Volt DC Motor ER-16
Sherline Dovetail-Base Headstock w/ 90-Volt DC Motor ER-16

Sherline Dovetail-Base Headstock w/ 90-Volt DC Motor ER-16

Sherline Machining ToolsSKU: RB-She-2086
Manufacturer #: 6518
Price  :
£720.62

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Description

  • Sherline Dovetail-Base Headstock w/ 90-Volt DC Motor ER-16
  • Features 90V DC motor for high torque
  • Offers variable speed control from 70-2800 RPM
  • Incorporates ER-16 spindle for precision
  • Operates with lifetime lubricated bearings
  • Constructed from anodized 6061-T6 aluminum

The Sherline Dovetail-Base Headstock w/ 90-Volt DC Motor ER-16 is a precision-engineered component designed for industrial applications, drawing inspiration from the headstock used in Sherline's lathe and milling machines. Constructed from extruded 6061-T6 aluminum, it features a durable black anodized finish. This headstock is equipped with an ER-16 spindle, which is renowned for its versatility and precision.

The headstock incorporates lifetime lubricated bearings with adjustable preload, ensuring superior accuracy, tighter tolerances, and smoother operation. These Class 5 bearings are designed to operate at continuous speeds of up to 4,000 RPM, with the capability to adjust for speeds up to 10,000 RPM. The dovetail base includes a brass gib that fits seamlessly with Sherline's steel dovetailed bed and column material, providing a stable and secure mounting solution.

The accompanying 90-Volt DC motor is a high-torque unit that delivers maximum torque at low RPM, making it particularly effective for machining tasks. It offers smoother and quieter performance compared to equivalent AC/DC motors. The motor features a two-step V-belt pulley system, allowing for adjustments between high-speed, low-torque and low-speed, high-torque operations. The variable speed electronic control maintains consistent RPM, accommodating input voltages from 100 VAC to 240 VAC and converting them to 90V DC output.

Note: The spindle is not fully sealed and should be protected from dust and coolant exposure to prevent premature bearing wear.

  • 1x Sherline Dovetail-Base Headstock w/ 90-Volt DC Motor ER-16
  • 1x ER-16 collet nut
  • 1x Brass gib on the dovetailed base
  • 1x Mounting point to attach a saddle nut on Sherline leadscrews
  • 1x Spindle bearing dust cover washer

Dovetail-Base Headstock with 90-Volt DC Motor ER-16 - Parts

  • Spindle base size: 88.9 x 85.7 mm (3.50 x 3.375")
  • Spindle case height: 92 mm (3.625")
  • Spindle centerline height above table: 63.5 mm (2.50")
  • Hole through spindle: 10 mm (0.405")

ZIP File

  • Spindle nose thread and taper: ER-16
  • Bearings: Two 20 mm, class 5, lifetime lubricated ball bearings with adjustable preload
  • Runout at spindle nose: 0.001″ (most are within 0.0005″)
  • End play (factory preload adjustment): 0.0002″ (0.0051 mm)
  • Recommended continuous spindle speed: 4000 RPM or less
  • Maximum spindle speed: 10,000 RPM
  • Mounting provision: Dovetail with brass gib
  • Motor: 1/2 HP 90-volt high-torque DC motor (single direction)
  • Speed control: Variable speed electronic control, 70-2800 RPM
  • Load compensating circuit maintains constant RPM
  • Speed control accepts input from 100 VAC to 240 VAC, 50 or 60 Hz, and converts it to 90V DC output to the motor

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