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9x20 Lathe

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Original 8x17 (195mm x 450mm) Emco-Maier Compact 8 from Austria, father of the current breed of 9x20 machines.
 9x20 Lathe DRO X & Z1 Axis Scale.  9x20 Lathe Tachometer & SFM

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Jet 9x20 belt drive metal lathe Model BD-920N

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Other similar lathes have additional gears that seem to be interchangeable with the Jet 920.
These are Jet BD-920N charts. Some employed gear ratios differ among the machines (e.g., Jet vs. Enco)
Jet change gears: 28teeth, 30t, 36t, 42t, 45t, 60t & 80t.

SPECIFICATIONS:
Spindle is supported by precision tapered roller bearings
Hardened and ground bed ways
Power longitudinal feed allows threading
Standard 1-½ " x 8 TPI spindle nose allows for many after-market accessories
A reversing switch is included for added versatility
Backlash adjustments are provided throughout the carriage
The tailstock can be adjusted for taper cuts
Quick-change gear box provides a wide range of inch and metric threads
Net Weight (approx. lbs.): 235
Stock Number: 321373

STANDARD EQUIPMENT:
7", 4-jaw & 4", 3-jaw chuck with threaded back plate
Faceplate
4-way tool post
Single tool post
Steady and follow rest
Metric change gears
MT-2 & MT-3 dead centers
Threading dial
Tool box and tools

OPTIONAL ACCESSORIES:
Cabinet stand
Live center 

Swing Over Bed 9"
Swing Over Cross Slide 5-5/16"
Distance Between Centers 20"
Hole Through Spindle 25/32 " (.78125")
Spindle Mount 1-½  x  8 TPI
Spindle Taper With Sleeve MT-3
Number of Spindle Speeds 6
Range of Spindle Speeds 130 - 2,000 RPM
Number of Longitudinal Feeds  27
Range of Longitudinal Feeds 0.005 - 0.011 "/rev
Number of Inch Threads 27
Range of Inch Threads 8 - 56 TPI
Number of Metric Threads 11
Range of Metric Threads 0.05 - 3 mm
Max Tool Size ½" x ½"
Max Compound Slide Travel  1-⅞"
Max Cross Slide Travel  5"
Max Carriage Travel 16"
Tailstock Spindle Travel  1-9/16"
Taper in Tailstock Spindle MT-2
Steady Rest Capacity ¼ x 1-⅞"
Follow Rest Capacity ¼ x 1-⅛ "
Width of Bed 4-½"
Overall Dimensions with Stand 37-½" L x 20" W x 45" H
Main Motor ¾ HP, 1 Ph 115V only