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Back to Motors and Headstocks
ER-16 Headstock
ER-16 collet nut included.
Product Description
For use on a Sherline lathe or mill in place of the standard headstock if you are wanting an ER-16 spindle.
Keep in mind that if the ER-16 nose is ordered, no Sherline accessories that use a #1 Morse taper or 3/4-16 thread will work on this spindle.
The ER-16 nut that ships with your order may be plain or have a black oxide finish.
NOTE: We do not sell the collets used with the ER-16 spindle. Those are available through MSC Industrial Supply Co. or other tool supply sources.
ER-16 Collet Range Specifications
| Inch | Metric |
|---|---|
| .020″ – .393″ | .5 mm – 13 mm |
Optional ER-16 Collet Nut Spanner Set
We offer an ER-16 collet nut spanner set for the ER-16 headstocks. The spanner set includes two wrenches: One has a pin that engages one of the holes in the Sherline spindle to keep it from turning while the nut is tightened, and the other is a hex wrench sized to fit the special ER-16 nut (the spanner set is not included with the headstock).
SPINDLE |
|
|---|---|
| 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° |
ALLOWABLE TOLERANCES |
|
| Spindle Runout (at spindle nose), Maximum allowable (Most are within .0005″) | 0.001″ |
| Spindle End Play (adjustable with preload nut), Factory Settings | with 2800 RPM Pulleys: 0.0002″with 10,000 RPM Pulleys: 0.0003″ |
HEADSTOCK BEARINGS |
|
| Designation/stock number (ZZ refers to “double shielded”) | 6004ZZ |
| Size of bore | 20 mm (0.7874″) |
| Tolerance of bore | 0.0004″ |
| Outside Diameter | 42 mm (1.6535″) |
| Tolerance of OD | 0.0005″ |
| Width | 12 mm (0.4724″) |
| Bearings | 9 balls, 1/4″ Dia. |
Headstock Bearing Replacement
We don’t recommend that customers replace the headstock bearings. We use custom fixtures to align the spindle and the bearings. You must return your headstock to our facility for bearing replacement*. Contact our customer service department, kim@sherline.com, for an RMA number before sending your headstock back for service.
*NOTE: Fees apply
Click the links below to learn more about the specialized fixtures and procedures for setting the headstock bearing preload.
PDF: Replacing Headstock Bearings
Video: Setting the Headstock Bearing Preload
| 31080 | 10-32 X 3/8″ Set Screw |
|---|---|
| 40100 | Headstock Casing |
| 40160 | Preload Nut |
| 65026 | ER-16 Collet Nut |
| 65023 | ER-16 Headstock Spindle |
| 40320 | Bearing Washer (SS) |
| 40330 | 10-32 X 5/8″ Skt Hd Cap Screw (2) |
| 40420 | Headstock Bearing (2) |
| 40440 | #2 X 1/4″ Pan Hd Sheet Metal Screw (2) |
| 40520 | 10-32 X 3/16 Cup Pt Set Screw |
| 40540 | 5/16-18 X 3/4″ Cone Point Set Screw |
| 40540 | 5/16-18 X 3/4″ Cone Point Set Screw |
| 43230 | Stepped Main Spindle Pulley |
Click the P/Ns below to download a zipped version of the IGS 3D CAD files. You will need to extract the zip file before viewing the IGS file.
30111 ER-16 Headstock 3D IGS Model
65026 ER-16 Collet Nut 3D IGS Model
You need an IGS viewer to view .igs files. CLICK HERE to download a FREE IGS viewer.
Related products
3.1″ 4-Jaw Chuck – ER-16
For use on the ER-16 headstock only
Not for use on the standard headstock that comes on all Sherline Machines
3.1″ ER-16 3-Jaw Chuck
For use on the ER-16 headstock only
Not for use on the standard headstock that comes on all Sherline Machines
ER-16 Headstock and Motor Unit
The 3308 would replace the standard headstock, motor and speed control assembly that come on Sherline machines.
The ER-16 nut that ships with your order may be plain or have a black oxide finish.