South Bend Heavy 10 Metal Lathe, METRIC "TRANSPOSING GEAR SET 100/127 / Case" !

Description: SOUTH BEND HEAVY 10 DOUBLE TUMBLER QCGB LATHE METRIC TRANSPOSING Gear SetThis Gear set is for the South Bend Heavy 10 lathes equipped with Double Tumbler (Two lever) Quick Change Gear Boxes. This set will not work on a Single Tumbler Gear Box Heavy 10 lathe. Not all 3d printed gears are created equally... don't fall for the rest, BUY THE BEST!NOTE: ALL Gears and storage case are 3d printed plastic. Don't let that SCARE you!!!!The following video is of the original plastic test gears still running 1 year later. The video is of a gear NOT on a Heavy 10. It was the TEST lathe for testing gears.The reversing gears in the video "mesh" is not displayed properly due to video angle and the fact that they were the test bed for "wider offset gears" to test strength in more severe use.The reversing gears turn at higher RPM which is good for testing. At the end of this video you will see how the MESH of the plastic to the original Steel gear is still visually perfect! South Bend 3d printed gears after 1 year of use. Video will open in a new window Using the eBay App? Paste link into a browser window: [isdntekvideo] This is a very durable and "quality" designed and finished gear set and case. Satisfaction guaranteed!Return if not totally happy! (Buyer pays shipping costs) This Gear set is for South Bend Heavy 10 lathes equipped with Double Tumbler (Two lever) Quick Change Gear Boxes. Includes 100/127 Transposing Gear. Help yourself, complete your "Gear War Chest"! Create ANY metric pitch (listed in below chart) when the time comes! Don't get caught not being able to get the job done. Use included chart to select STUD GEAR and QCGB PLUNGER HOLES! Gear set comes with a attractive and convenient storage case so you will always know where they are! Purchase includes the following GEARS AND SPACERS QTY 1 - 100T/127T Transposing Gear: 3/4” bore 1/2 wide gears (see below for more dimensions). 1 - 26Tooth: 5/8" bore 1/2 wide with 3/16 key. 1 - 28Tooth: 5/8" bore 1/2 wide with 3/16 key. 1 - 32Tooth: 5/8" bore 1/2 wide with 3/16 key. 1 - 36Tooth: 5/8" bore 1/2 wide with 3/16 key. 1 - 40Tooth: 5/8" bore 1/2 wide with 3/16 key. 1 - 44Tooth: 5/8" bore 1/2 wide with 3/16 key. 1 - 48Tooth: 5/8" bore 1/2 wide with 3/16 key. 1 - 0.600" Spacer (Space out Screw Gear) 2 - 0.025" Shims (Shim out Screw Gear if needed) INCLUDES HANDY ATTRACTIVE STORAGE CASE! APPLICATION INFORMATION: SOUTH BEND LATHE Heavy-10 (Using QCGB) METRIC TRANSPOSING GEAR CHART METRIC THREADS – ENGLISH LEAD SCREW-8 THREADS PER INCH USING 56 TOOTH SCREW GEAR M/M STUD PLUNGER PLUNGER PITCH GEAR HOLE HOLE 6.00 48 A 1 5.50 44 A 1 5.00 40 A 1 4.50 36 A 1 4.00 32 A 1 3.50 28 A 1 3.00 48 B 1 2.75 44 B 1 2.50 40 B 1 2.25 36 B 1 2.00 32 B 1 1.75 28 B 1 1.50 48 C 1 1.40 28 B 3 1.30 26 B 3 1.25 40 C 1 1.20 48 C 3 1.10 44 C 3 1.00 32 C 1 0.90 36 C 3 0.80 32 C 3 0.75 48 D 1 0.70 28 C 3 0.65 26 C 3 0.60 48 D 3 0.55 44 D 3 0.50 32 D 1 0.45 36 D 3 0.40 32 D 3 0.35 28 D 3 0.30 48 E 3 0.25 32 E 1 0.20 32 E 3 DETAILS: TRANSPOSING GEAR 100T / 127T:Commonly used to transpose the feed rates on metal lathes to allow cutting of metric sized threads. Powdered Metal Bronze (SAE 841) oil impregnated bushing. There IS also an oil hole if you desire to oil directly. (Makes me feel better ;>) ) 127T Gear Width: 0.5” 100T Gear Width: 0.550” (this provides enough offset to “clear” each other an retain FULL 0.5 engagement. Bore Diameter: 0.75” (retain use of any existing bushings). STUD GEARS: 3d printed plastic high resolution gears. Gear Width: 0.500" Bore Diameter: 0.625” 5/8" with 1/8 key way. I have run these gears against STEEL gears and other PLASTIC gears for MANY hours of use. I have accidentally had SWARF sucked into the plastic gears. (Had to dig it out!) I HAVE EPERIENCED NO MEASURABLE WEAR AND NO FAILURE TO DATE! These gears seem to be REALLY TOUGH! I have been very impressed and think you will be to! Thanks for looking!!! Following is some GREAT gear threading information. Metric Threading on the Lathe Metric threading using a lathe with an inch lead screw isn't difficult, but instructions that cover the finer points are few and far between. It's a metric world and I now cut more metric threads than anything else. Chances are, if you're not cutting metric threads now, you will be sooner or later. My guess is sooner. With just a few extra gears you can cut any standard metric pitch on your small Logan, Southbend or other quality lathe. The following explanation may seem a bit tedious and repetitive, but a solid understanding of the basics will help you solve any problems that might arise, for any lathe, gear train or pitch. Metric Transposing Gears & How They Work The most common lead screw is 8 TPI, a pitch of 0.125". That's 3.175 mm, not a terribly convenient number from which to derive the standard metric pitches. The purpose of metric transposing gears is simply to scale that pitch into a more useful value that can be divided or multiplied, using common gear ratios, to get the standard metric pitches. The traditional pair of transposing gears have 127 and 100 teeth. The lead screw pitch, 3.175 mm, divided by the ratio of those two gears, 1.27, gives us 2.5 mm, a much easier number to further divide or multiply into standard metric pitches. The important thing to remember is that using metric transposing gears allows you to treat your inch lead screw as a metric lead screw. The rest of the gear train simply multiplies or divides that new pitch value to get to the desired pitch. If you think of the transposing gears and lead screw together it avoids having to include the specifics of the conversion in every gear calculation. Please ask questions before purchase! Have a question? Just ASK! Thank you for looking! Customer Satisfaction Guaranteed! *If you have ANY “Fit or Finish” issues, please let me know. Please, contact me BEFORE choosing to RETURN an item! I ALWAYS do whatever is required to make sure you are satisfied! I strive hard to earn your “Positive Ebay Feedback”! Kevin Dudley

Price: 169.95 USD

Location: Cross Plains, Tennessee

End Time: 2024-12-02T14:53:53.000Z

Shipping Cost: 10.99 USD