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• ### Lathe Countershafts, Jackshafts, Spindle Speeds

Divide the motor speed (say 1425 r.p.m.) by 5 and the countershaft will be revolving at 285 r.p.m.. If the lathe has a 3-speed headstock pulley the next higher speed will be twice as fast (570 r.p.m.) and the one below half as fast (142 r.p.m.). This set is

• ### Lathe Countershaft Lathes.co.uk

Divide the motor speed (say 1425 r.p.m.) by 5 and the countershaft will be revolving at 285 r.p.m.. If the lathe has a 3-speed headstock pulley the next higher speed will be twice as fast (570 r.p.m.) and the one below half as fast (142 r.p.m.). This set is obviously a little slow so, increasing the motor pulley to 3-inches in diameter would give speeds of 214, 428 and 856 r.p.m.; that would

• ### Jackshaft Wikipedia

The countershaft and the lathe spindle each carried cones of different-diameter pulleys for speed control. In 1872, this definition was given: "The term countershaft is applied to all shafts driven from the main line [shaft] when placed at or near the machines to be driven" Modern uses. Modern jackshafts and countershafts are often hidden inside large machinery as components of the larger

• ### Countershaft transmission Caterpillar Inc.

Another feature of the countershaft transmission 10 is that the physical location of the first or low speed providing clutch 234 is such as to minimize high speed rotation of other elements of the transmission under normal operating conditions. In certain prior art transmissions it is understood that bearing speeds considerably above about 5,000 rpm, for example 8,000 rpm, are experienced by

• ### EP0339049A1 Countershaft transmission Google Patents

A countershaft transmission (10) includes an input shaft (12), a countershaft (16), an output shaft (14), first and second disc type directional clutches (78, 79) associated with the input shaft, and disc type speed clutches (133) associated with the countershaft and output shaft to selectively connect a plurality of constantly meshing gears (90, 100, 108, 112, 120, 128, 136, 146, 164, 172) in

• ### Countershaft transmission (Patent) OSTI.GOV

This patent describes a multiple speed ratio transmission for use in delivering torque from an engine comprising: an output shaft; an input pinion continuously driven by the engine; first clutch means for selectively connecting the engine to the output shaft; a countershaft mounted for rotation parallel to the output shaft; gearing defining multiple pairs of meshing gears and pinions including

• ### COUNTERSHAFT SPEED eBay

COUNTERSHAFT SPEED. \$130.96 + \$15.00 Shipping. Get it by Fri, Aug 14 Mon, Aug 17 from Rock Valley, Iowa • Used condition • 30 day returns Buyer pays return shipping; Used parts can vary slightly in appearance and condition. Pictures shown are representational only and do not necessarily reflect the actual part you will receive. An item that has been used previously. The item may have

• ### 10" Atlas Countershaft Question The Hobby-Machinist

18/05/2020· As Pierre said, the countershaft spindle on both vertical and horizontal countershafts originally came with a grease cup screwed into each end. The holes in the end continued into the spindle from each end and the spindle was cross-drilled in about the center of the bearings. If yours isn't then it isn't original. However, the only thing wrong with having Xerk fittings instead of grease cups

• ### Countershaft transmission Caterpillar Inc.

Another feature of the countershaft transmission 10 is that the physical location of the first or low speed providing clutch 234 is such as to minimize high speed rotation of other elements of the transmission under normal operating conditions. In certain prior art transmissions it is understood that bearing speeds considerably above about 5,000 rpm, for example 8,000 rpm, are experienced by

• ### EP0339049A1 Countershaft transmission Google Patents

A countershaft transmission (10) includes an input shaft (12), a countershaft (16), an output shaft (14), first and second disc type directional clutches (78, 79) associated with the input shaft, and disc type speed clutches (133) associated with the countershaft and output shaft to selectively connect a plurality of constantly meshing gears (90, 100, 108, 112, 120, 128, 136, 146, 164, 172) in

• ### Jackshaft Wikipedia

The countershaft and the lathe spindle each carried cones of different-diameter pulleys for speed control. In 1872, this definition was given: "The term countershaft is applied to all shafts driven from the main line [shaft] when placed at or near the machines to be driven" Modern uses. Modern jackshafts and countershafts are often hidden inside large machinery as components of the larger

• ### Countershaft transmission (Patent) OSTI.GOV

This patent describes a multiple speed ratio transmission for use in delivering torque from an engine comprising: an output shaft; an input pinion continuously driven by the engine; first clutch means for selectively connecting the engine to the output shaft; a countershaft mounted for rotation parallel to the output shaft; gearing defining multiple pairs of meshing gears and pinions including

• ### Countershaft speed reducer Google Groups

24/06/2000· Countershaft speed reducer Showing 1-6 of 6 messages. Countershaft speed reducer: Mark Kinsler: 6/24/00 12:00 AM: The Noble Grizzly G4015 Three-in-One Lathe-Mill-Drill, hecho en China, has been treated to a speed reducer so that I can try threading and knurling. One of the machine's essential shortcomings is a lack of back-gearing, a set of auxiliary gears which functions as a speed

• ### Twin countershaft transmission with floating main shaft

@article{osti_6051239, title = {Twin countershaft transmission with floating main shaft}, author = {Loeffler, J M}, abstractNote = {A multi-speed transmission is described comprising, in combination: a housing; a pair of spaced parallel main countershafts mounted for rotation within the housing and being spatially fixed therein; means for supplying input power to both of the main countershafts

• ### Tractor Parts Speed Countershaft

1973 Oliver 1855 Diesel Tractor 1961 Allis Chalmers D-15 Gas Tractor 1973 Farmall Cub Tractor 1949 Minneapolis Moline Zau Tractor 1949 Massey Harris 1968 Case 830 Gas Tractor Vintage 1965 Oliver 1650 Diesel Tractor 1965 Case 830 Gas Tractor Mta Hv Mdv Mv Cub Tractor Antique Vintage 1951 Ford 8N 9N 1968 International 1256 Tractor 1951 Ford 8N 9N 2N Tractor Vintage 1951 Ford 8N 9N 2N 570

• ### Question re: Craftsman 618 countershaft lever The

27/01/2021· An alternative would be to replace the entire motor-countershaft setup with a 3-phase motor and a VFD, and then control speed directly by changing the speed of the motor itself. I've gone this route on my wood lathes and love it, but have not yet done so on the Craftsman 101.07301. Larry . RJSakowski H-M Supporter Gold Member. H-M Supporter Gold Member. Joined Feb 1, 2015

• ### COUNTERSHAFT PARTS Transmission Big Twin 3 & 4

Transmission Big Twin 3 & 4 Speed / MAIN DRIVE GEAR & PARTS Transmission Big Twin 3 & 4 Speed / COUNTERSHAFT PARTS Hardware & Bearing Parts /

• ### 148952 Countershaft Nut Transmission

Speed Shafts; Countershaft Nut. 148952 In Stock. Eligible for Free Shipping Programs \$22.88; Find A Dealer. Product Notes LH threads. Used w/ 148951 Countershaft