A 2-7/16″ CEMA screw-conveyor end shaft that supports the non-drive (tail) end. Turned from 2.438″ (2.438″) bar, 9-5/8″ (9.625″) overall, drilled for a 5/8″ 2-bolt coupling at the pipe end to the CEMA/Martin hole pattern. Crosses Martin CE5. Load it as a configurable starting point. Material, tolerances, and features stay editable, and we confirm full geometry against your conveyor or old shaft before we cut.
2-7/16″ End Shaft profile (configurator preview)
Dimensions & defaults
Shaft type
End Shaft (2-bolt)
CEMA size
2-7/16″ (shaft Ø 2.438″ (2.438″))
Overall length
9-5/8″ (9.625″)
Coupling bolts
5/8″, pipe end (2 per end, 90° apart)
Coupling holes
21/32″ through, first 0.938″ (0.938″) from end, 3″ centers
Default material
C-1045 cold-rolled (configurable; 304/316 SS; hardened bearing area quoted)
Material, tolerances, and features (mounting thread, retaining-ring groove, seat shoulder) stay editable in the configurator. The shaft and seat diameters, thread size and length, overall length, and groove dimensions are taken from the published catalog data; the axial split (seat-shoulder location, groove position) is reconstructed from the dimension table and confirmed against the catalog drawing or a sample before we cut, the drawing's title block stamps the source SKU so any deviation is visible to your buyer and to us.
It joins two screw-conveyor sections over a hanger bearing. The shaft slides into the pipe ends of both screws and is drilled through with a 2-bolt coupling at each end — two bolts per end, 90° apart and staggered along the shaft. CEMA (ANSI/CEMA 300) fixes the shaft diameter, coupling-bolt size, hole diameter, and hole spacing by size, so a card matched to your shaft diameter and bolt pattern fits any screw pipe of that size. Each card loads into the configurator with the coupling holes pre-placed.
A coupling shaft joins two screw sections and has a 2-bolt coupling at both ends. A drive shaft is the head-end shaft that takes the gear reducer or motor coupling — it has a 2-bolt coupling at the pipe end and an ANSI B17.1 keyseat at the drive end. An end (tail) shaft supports the non-drive end and has a 2-bolt coupling at the pipe end only. All three are turned from a constant-diameter bar with the coupling holes (and, on drives, the keyseat) pre-dimensioned.
Match the shaft diameter to your screw-conveyor size (1, 1-1/2, 2, 2-7/16, 3, or 3-7/16 inch), which fixes the coupling-bolt size and the hole pattern. If you are replacing a catalog part, the cards cross-reference the Martin CC/DS/CE and KWS CS/DS series. Pick the card whose size, type, and cross number match your shaft.
The cards default to C-1045 cold-rolled steel, the CEMA standard for coupling and drive shafts. For corrosive or sanitary duty switch to 304 or 316 stainless in the configurator. Coupling and hanger shafts are often induction-hardened in the bearing area (about 40 to 50 Rockwell C) so the hanger bearing wears before the shaft; that hardening is a quoted option, called out at order. Material certs (MTRs) are available on request.
The shaft diameter, overall length, coupling-bolt size, transverse hole diameter and spacing, and the drive-end keyseat come straight from the published CEMA / Martin Sprocket data. The hanger-bearing and drive-end journal positions on the bar are representative and confirmed against your conveyor or old shaft before we cut. The drawing title block stamps the source cross number so any deviation is visible.
Not from these cards yet. The 3-bolt coupling shafts (common in rendering and heavy-duty service), the close-coupling shafts that join two screws without a hanger, and the hanger-end shafts are on our roadmap. For one of those today, send us a print or the old shaft and we will quote it directly.
CEMA, Martin Sprocket & Gear, KWS, Orthman, and all other standard, part, and brand names shown are trademarks or trade names of their respective owners. Great Lakes Shafts is an independent manufacturer and is not affiliated with, sponsored by, or endorsed by any of them. These are aftermarket replacement shafts machined to the referenced CEMA dimensional standard; the names are used only to identify the equipment our parts fit.
