Rotary Table, 4" - Precision (Digital Readout)

4" (100 mm) diameter
Use in horizontal or vertical position
Worm ratio is 72 to 1
Digital angular readout with 1 minute (0.017 degree) resolution digital angular readout
2 Morse taper center hole

Part Number: 2420
Weight: 18.8 lb

Price: $359.95

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This horizontal / vertical rotary table is made of precision machined cast iron and has a 2 Morse taper center hole. The rotary table is furnished with lock down clamps.

The digital readout displays degrees and minutes or decimal degrees.

This rotary table comes with an adapter to mount a 3" lathe chuck. It works with both 3- and 4-jaw chucks.

The table is 2.87" high when horizontal, and the centerline is 2.68" above the table when in the vertical position. The body of the table is 5" (crank handle to back) by 5.5" (mounting slot to mounting slot).

The worm ratio is 72 to 1.

Flatness of clamping surface: 0.0008".

Parallelism of clamping surface to base: 0.0008".

Squareness of clamping surface to angle face: 0.0012".

Squareness of clamping surface to center slot: 0.0012".

Concentricity of center bore: 0.0008" TIP.

Chris' Tips

Chris' Tips
The precision rotary table works with this tail stock, this dividing plate set and this clamping kit.

We provide rotary table instructions and dividing plate instructions.

Here is some more information about using a rotary table written by one of our customers.

See the comparison of the specifications for the 4" rotary tables we carry.

Here's a little spreadsheet that makes using the DRO easy.

	A	B	Formulas in Col B
1	Divisions	7	7
2	Degrees	51.429	=360/B1
3
4	Step 1	0.000	0
5	Step 2	51.429	=B4+$B$2
6	Step 3	102.857	=B5+$B$2
7	Step 4	154.286	=B6+$B$2
8	Step 5	205.714	=B7+$B$2
9	Step 6	257.143	=B8+$B$2
10	Step 7	308.571	=B9+$B$2

Replicate the last row for more divisions.

Specifications

Specifications
Ratio	72:1
Table Diameter	3.9" (100 mm)
Height (Mounted Horizontal)	2.9" (73 mm)
Body Length	5.5" (140 mm)
Body Width	5.0" (126 mm)
Center Hole Taper	2 Morse Taper
Center Height (Mounted Vertically)	2.68" (68.0 mm)
T-Slot Width	0.31" (8.0 mm)
Minimum Vernier Reading	1'
Flatness of Table Surface (Concave)	0.0008" (0.020 mm)
Parallelism of Table Surface to Base	0.0008" (0.020 mm)
Squareness of Table Surface to Base	0.0012" (0.030 mm)
Runout of Table Surface	0.0006" (0.015 mm)
Runout of Center Taper	0.0008" (0.020 mm)
Squareness of Table Surface to Angle Face Slot	0.0012" (0.030 mm)
Center Hole Parallel with the Angle Face	0.0008" (0.020 mm)
Maximum Spacing Error	70"