Description
- 1x Sherline ER-16 Spindle Headstock
- 1x ER-16 collet nut
- 1x Spindle pulley
- 1x Precision ground head key
- ER-16 collet range: .020″ – .393″ (inch), .5 mm – 13 mm (metric)
- Headstock spindle bore: .406″
- Headstock spindle nose internal taper: 16° taper
- Headstock spindle external thread: 22 x 1.5 mm
- Pulley groove side angle: 19°
- Coating: Electroless nickel with uniform coating thickness up to .004″
- Maximum allowable spindle runout at spindle nose: 0.001″
- Spindle end play adjustable with preload nut: Factory settings with 2,800 RPM pulleys: 0.0002″, with 10,000 RPM pulleys: 0.0003″
- Headstock bearings: Designation/stock number 6004ZZ
- Size of bore: 20 mm (0.7874″)
- Tolerance of bore: 0.0004″
- Outside diameter: 42 mm (1.6535″)
- Tolerance of outside diameter: 0.0005″
- Width: 12 mm (0.4724″)
- Bearings: 9 balls, 1/4″ diameter
- DC motor and speed control specifications: Two-speed pulley RPM range normal belt position: 70-2,800
- High-torque, low RPM position: 70-1,280
- Type of enclosure: Totally enclosed, non-vented
- Duty rating: Continuous–10 oz. in. at 6,100 RPM, .85 amperes
- Intermittent–30 oz. in. at 5,500 RPM, 1.75 amperes (5 minutes on / 15 minutes off)
- Output horsepower: .06 KW (60 W) at 10 oz. in. / 6,100 RPM
- AC voltage (input): Normally 115 VAC, 60 Hz, single phase to rectifier
- DC voltage: 90V DC to motor (60 Hz)
- Speed in RPM: 6,100 RPM continuous
- Class of insulation: Class A, 105° C insulation system
- Normal full load current: .85 amperes
- Starting current: 1.7 amperes instantaneous starting current (<100 milliamperes)
- Maximum current at time of changeover from lower speed to higher speed: Depends on load
- Type of motor: 3.00 inch (outer diameter) sub-fractional horsepower brush-type permanent magnet motor
- Temperature rise at ambient 50° C: Less than or equal to 45° C
- End use of motor: Drive unit for lathe or mill