{"id":764,"date":"2026-06-23T09:46:52","date_gmt":"2026-06-23T09:46:52","guid":{"rendered":"https:\/\/oldhamcoupling.net\/product\/ep6c-32-clamp-type-oldham-coupling\/"},"modified":"2026-06-24T08:47:40","modified_gmt":"2026-06-24T08:47:40","slug":"ep6c-32-clamp-type-oldham-coupling","status":"publish","type":"product","link":"https:\/\/oldhamcoupling.net\/tr\/urun\/ep6c-32-clamp-type-oldham-coupling\/","title":{"rendered":"EP6C-32 Clamp Type Oldham Coupling"},"content":{"rendered":"
\n

EP6C-32 Clamp Type Oldham Coupling \u2014 32 mm Split-Collar Slider for Modular Industrial Drives<\/h2>\n

The EP6C-32 clamp Oldham coupling<\/strong> brings the clamp architecture into the duty class where industrial automation begins. With a 32 mm outside diameter, 43 mm overall length, six catalogue bores from 8 mm through 14 mm covering NEMA 23 servomotor and \u03a614 mm ball-screw standards, and a torque envelope of 5.5 N\u00b7m continuous \/ 11 N\u00b7m peak at 4 700 rpm, the EP6C-32 is sized for the production-machinery drives where rigid couplings would compromise serviceability and set-screw couplings would mark the shaft over years of duty.<\/p>\n

Two engineering choices distinguish the EP6C-32 from comparable couplings at this size. First, the clamp screw is upsized to M4 with a 4.0 N\u00b7m wrench torque specification \u2014 developing approximately 2 400 N of distributed clamping force, sufficient to hold against the 11 N\u00b7m peak rating with margin. Second, the slider is upgraded from neat POM to a 15 % glass-fibre-reinforced grade (GF-POM), raising the continuous-service torque capacity at elevated temperature. The combination gives the EP6C-32 the duty profile a service technician on a production floor expects: confidently transmits the load, releases cleanly for service, restores the same clamping force on reassembly, and survives years of duty between any kind of intervention.<\/p>\n

Specifications<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Model<\/td>\nEP6C-32<\/td>\n<\/tr>\n
Outside Diameter (\u03a6D)<\/td>\n32 mm<\/td>\n<\/tr>\n
Overall Length (L)<\/td>\n43 mm<\/td>\n<\/tr>\n
Hub Length (L1)<\/td>\n14.0 mm<\/td>\n<\/tr>\n
Clamp-Gap Width (F)<\/td>\n6.0 mm<\/td>\n<\/tr>\n
Bore-Centre Distance (E)<\/td>\n21 mm<\/td>\n<\/tr>\n
Bore Range (d1 \/ d2)<\/td>\n8, 9.525, 10, 11, 12, 14 mm<\/td>\n<\/tr>\n
Rated Torque<\/td>\n5.5 N\u00b7m<\/td>\n<\/tr>\n
Maximum Torque<\/td>\n11 N\u00b7m<\/td>\n<\/tr>\n
Maximum Rotational Speed<\/td>\n4 700 rpm<\/td>\n<\/tr>\n
Moment of Inertia<\/td>\n1.2 \u00d7 10\u207b\u2075 kg\u00b7m\u00b2<\/td>\n<\/tr>\n
Static Torsional Stiffness<\/td>\n260 N\u00b7m\/rad<\/td>\n<\/tr>\n
Parallel Misalignment<\/td>\n2.4 mm<\/td>\n<\/tr>\n
Angular Misalignment<\/td>\n3.0\u00b0<\/td>\n<\/tr>\n
Clamp-Screw Thread<\/td>\nM4<\/td>\n<\/tr>\n
Wrench Tightening Torque<\/td>\n4.0 N\u00b7m<\/td>\n<\/tr>\n
Mass (max bore)<\/td>\n66 g<\/td>\n<\/tr>\n
Backlash<\/td>\nZero<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\"EP6C-32<\/p>\n

Materials<\/h3>\n
\n
\n

A2017-T4 Aluminum Hubs<\/h4>\n

CNC-machined from A2017-T4 aluminum bar with hard-anodised surface finish. Clamp-slot width is held to \u00b10.05 mm \u2014 tighter than industry-typical \u00b10.1 mm \u2014 ensuring uniform clamping pressure around the shaft and consistent performance across production batches. Hub mass is held below 30 g per side to keep reflected motor inertia low.<\/p>\n<\/p><\/div>\n

\n

15 % GF-POM Centre Slider<\/h4>\n

Slider is 15 % glass-fibre-reinforced POM-H, the same compound used on the equivalent EP6-32 set-screw model. The glass loading raises continuous-service torque capacity at the +60 \u00b0C to +100 \u00b0C ambient range typical of industrial drive cabinets. Carbon-loaded POM is available where ESD-safe operation is needed; PEEK is available for chemically aggressive or high-temperature service.<\/p>\n<\/p><\/div>\n

\n

M4 Heavy Clamp Screws<\/h4>\n

Single M4 socket-head cap screw per hub, SUS304 stainless A2-70, with cup-point head form for tool-friendly engagement. The 4.0 N\u00b7m wrench torque specification develops 2 400 N of clamping force at the split \u2014 well in excess of what the peak 11 N\u00b7m torque requires. Service torque is reproducible across hundreds of cycles within the screw’s elastic range.<\/p>\n<\/p><\/div>\n<\/div>\n

Why the EP6C-32 Earns Production-Floor Approval<\/h3>\n

The selection battle between set-screw and clamp type Oldham couplings often gets decided in the maintenance review at the end of year one. By that point, a production line has accumulated enough service history to expose the operational characteristics of every component. A set-screw coupling that has been pulled and reinstalled five times has five overlapping dimples on the shaft, gradually shifting the angular reference of the drive train. A clamp coupling that has been pulled and reinstalled fifty times has zero dimples \u2014 and the angular reference is whatever it was on the most recent installation.<\/p>\n

For high-mix production lines that change format frequently \u2014 common in packaging, light assembly, and contract manufacturing \u2014 that clean release-and-restore behaviour translates directly into changeover time savings. A line that previously needed a dimple-dressing pass between product changes can now skip that step entirely. A line that previously had to specify a hardened motor shaft (with corresponding cost premium) can now use a standard shaft, knowing that no set-screw will mark the surface. These are the kinds of small operational savings that compound over a fleet of dozens of machines into measurable economic value.<\/p>\n

The EP6C-32 also provides the rare combination of high torque density (5.5 N\u00b7m \/ 66 g maximum mass \u2014 better than steel-disc-pack alternatives) and field-replaceable wear parts. The polymer slider can be replaced in minutes without removing either hub from its shaft. Slider replacement at end-of-life restores the coupling to as-new specification.<\/p>\n

\"EP6C-32<\/p>\n

Industry Applications<\/h3>\n
\n
\n

<\/span> Modular Packaging Lines<\/h4>\n

Carriage and indexer drives on form-fill-seal, cartoner, and bag-loader modules. Quick clamp release supports the format-changeover budget of high-mix packaging operations.<\/p>\n<\/p><\/div>\n

\n

<\/span> Automotive Assembly Sub-Stations<\/h4>\n

Tightening-spindle and probe-positioning drives on automotive part-assembly cells. Symmetric clamp force preserves the precision-positioning repeatability that determines first-pass-yield metrics.<\/p>\n<\/p><\/div>\n

\n

<\/span> Glass & Optical Processing<\/h4>\n

Spindle drives on small-format glass-cutting, lens-grinding, and optical-coating equipment. Clamp engagement preserves hardened spindle shaft surface integrity.<\/p>\n<\/p><\/div>\n

\n

<\/span> Food-Process Cutting & Slicing<\/h4>\n

Blade-drive and infeed-roller couplings on cheese, meat, and confectionery slicing lines. POM is FDA-listed; PEEK upgrade available for direct-contact food applications.<\/p>\n<\/p><\/div>\n

\n

<\/span> Antenna & Radar Positioning<\/h4>\n

Mid-size azimuth and elevation drives on ground-station antennas and weather-radar pedestals. Clamp engagement preserves the precision shaft surfaces over years of intermittent service.<\/p>\n<\/p><\/div>\n

\n

<\/span> Battery-Cell Assembly Lines<\/h4>\n

Tab-welding and electrolyte-fill positioning drives on lithium-cell assembly equipment. Carbon-filled ESD-safe slider available for cleanroom and battery-safety zones.<\/p>\n<\/p><\/div>\n<\/div>\n

Why Choose Ever-power<\/h3>\n
\n

Quality & Documentation<\/h4>\n

EP6C-32 production runs under ISO 9001:2015<\/strong> with full material traceability and dimensional inspection records archived per batch. Conformity statements cover RoHS<\/strong>, REACH<\/strong>, and CE<\/strong> as standard. For automotive customers, PPAP-style first-article documentation is offered; for food contact, FDA 21 CFR 177.2470 material certification covers the POM slider.<\/p>\n

Customisation<\/h4>\n

Catalogue bores (8, 9.525, 10, 11, 12, 14 mm) cover NEMA 23 servomotor outputs, \u03a612 mm and \u03a614 mm ball-screw inputs, and the imperial 3\/8″ shaft standard. Beyond catalogue, mixed-bore variants, keyway-broached bores, ESD-safe slider, food-grade slider, and stainless-steel hub variants are all routine custom-build options.<\/p>\n

Supply & Aftermarket<\/h4>\n

Monthly EP6C-32 capacity exceeds 20 000 pieces across the full bore matrix. Spare slider discs ship in 2 business days. English-speaking engineering desk responds within 24 hours<\/strong>. Sea, air, and customer-nominated 3PL logistics are all supported globally.<\/p>\n<\/div>\n

\"Ever-power<\/p>\n

Customer Reviews & Case Studies<\/h3>\n
\n
\n

\u2605\u2605\u2605\u2605\u2605<\/p>\n

Singapore \u2014 Contract Packaging Operator<\/h4>\n

Used in:<\/em> Carriage drives across a multi-product cosmetic bottle filling and labelling line. Six product changeovers per week, full clean-down between each.<\/p>\n

Feedback:<\/em> “Format changeover time has dropped by an average of 18 minutes per change since we standardised on the EP6C-32 across this line. The clamp release lets operators break and remake the drive without the dimple-dressing step that had been part of every previous changeover. Documentation pack supports our SQF audit without additional rework.”<\/p>\n<\/p><\/div>\n

\n

\u2605\u2605\u2605\u2605\u2605<\/p>\n

Indonesia \u2014 Battery-Cell Equipment Integrator<\/h4>\n

Used in:<\/em> Positioning drives on lithium-cell formation equipment in cleanroom environment.<\/p>\n

Feedback:<\/em> “Carbon-filled ESD-safe slider variant was supplied within the quoted lead time. The non-shedding clamp engagement has been a key factor in our maintaining the Class 7 cleanroom particulate budget for the formation cells. 14 months of three-shift duty so far with no measurable wear.”<\/p>\n<\/p><\/div>\n

\n

\u2605\u2605\u2605\u2605\u2606<\/p>\n

Qatar \u2014 Petrochemical Plant Maintenance<\/h4>\n

Used in:<\/em> Replacement-fleet specification for refinery-instrumentation drive trains.<\/p>\n

Feedback:<\/em> “Clamp engagement is materially safer for the field service crew \u2014 no set-screw chip risk in EX-rated zones. Aluminum hubs require care in chloride-environments; we have specified the stainless-steel hub variant for our coastal-refinery deployments. Knock one star only because the catalogue does not list the stainless variant as a standard SKU \u2014 engineering supplied it but with longer lead time.”<\/p>\n<\/p><\/div>\n<\/div>\n

Frequently Asked Questions<\/h3>\n
\nHow does the EP6C-32 compare to the set-screw EP6-32?<\/summary>\n

Mechanically identical in torque envelope, slider geometry, misalignment tolerance, and inertia footprint. The EP6C-32 replaces two M6 set-screws per hub with a single M4 clamp screw per hub. Net hub-to-shaft contact is the entire bore circumference rather than two point loads. For repeat-service applications, hardened shafts, and clean-process environments, the EP6C-32 is the architectural choice; for low-cost installations on standard shafts with infrequent service, the EP6-32 remains the value option.<\/p>\n<\/details>\n

\nIs a stainless-steel hub variant available?<\/summary>\n

Yes. SUS304 and SUS316L stainless variants are released under engineering review for marine, chloride-rich, and food-process applications. Lead time is approximately 4 weeks from order, and the stainless variant typically carries a 30 % cost premium over the standard aluminum specification.<\/p>\n<\/details>\n

\nCan the EP6C-32 be installed in ATEX zones?<\/summary>\n

The coupling itself has no electrical components and does not require independent ATEX certification. For installation in zoned environments, specify the carbon-filled ESD-safe slider variant to prevent static-electricity build-up. Confirm that the host motor enclosure carries the appropriate Ex rating; the coupling does not change the Ex classification of the surrounding equipment.<\/p>\n<\/details>\n

\nWhat is the expected slider service life on a typical packaging-line duty cycle?<\/summary>\n

For a packaging-line drive operating at 50 % rated load, 60 % rated speed, two-shift duty, with parallel offset below 1 mm, expected slider service life exceeds 6 years before measurable wear. Slider-only replacement at end-of-life takes approximately 15 minutes including documentation and returns the coupling to as-new specification.<\/p>\n<\/details>\n

\nHow do I order spare clamp screws separately?<\/summary>\n

Spare clamp screws are stocked under part number EP6C-32-SCREW. Minimum order quantity is 10 pieces, shipped in 1 business day. We recommend maintaining a small replacement screw inventory for fleet operations \u2014 the screws are consumable in the formal MTTR sense, and ready availability avoids inventory bottlenecks.<\/p>\n<\/details>\n

Quote the EP6C-32 for Industrial Drives<\/h3>\n

For packaging, assembly, food-process, and modular production-line OEMs, the EP6C-32 delivers the rare combination of industrial duty rating, clamp-mounting service-friendliness, and high-volume catalogue availability. Browse Ever-power’s complete clamp coupling range<\/a>, learn about our global production network<\/a>, or proceed to quote enquiry below.<\/p>\n

\n Quote EP6C-32 Now \u2192<\/a>\n<\/p>\n