توضیحات
EP-SSVF40 Stainless Steel Worm Gear Reducer
The EP-SSVF40 is the smallest member of Ever-power’s SSVF series — purpose-built for hygienic environments where space is at a premium and contamination risk is zero-tolerance. Machined from solid 304 stainless steel and electrolytically polished to a mirror finish, this compact worm gearbox pairs an ø75 mm IEC input flange with a robust output bore of ø90/ø91 mm, delivering reliable torque reduction across eleven speed ratios spanning 7.5 to 100. Food manufacturers, pharmaceutical packagers, and beverage bottling engineers choose the EP-SSVF40 when they need a reducer that can withstand daily wash-down, aggressive cleaning agents, and the strict audit requirements of HACCP-compliant facilities. Its 12-2 tin-bronze worm wheel paired with a hardened steel worm shaft provides self-locking at higher ratios, eliminating the need for secondary braking on inclined conveyors or dosing gates. At just 115.5 mm overall length, it fits into machine frames where larger reducers simply cannot go.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | EP-SSVF40 |
| Housing Material | 304 Stainless Steel (precision cast) |
| Worm Wheel Material | 12-2 Tin Bronze |
| Worm Shaft Material | 304 Stainless Steel (hardened) |
| Surface Finish | Electrolytically polished |
| Lubrication | Fully synthetic worm gear oil (food-grade compatible) |
| Speed Ratios | 7.5 / 10 / 15 / 20 / 25 / 30 / 40 / 50 / 60 / 80 / 100 |
| Overall Length | 115.5 mm |
| Height | 78 mm |
| Input Flange (o) | o75 mm |
| Output Bore (o) | o90 / o91 mm |
| Mounting Thread | M6x8 |
Compatible IEC Motor Flanges and Output Shaft Key Size (mm)
| PAM-IEC | N(H8) | M | P | i=7.5-30 Key | i=40-100 Key |
|---|---|---|---|---|---|
| 71B5 | 110 | 130 | 160 | 14 mm | — (N/A) |
| 71B14 | 70 | 85 | 105 | 14 mm | — (N/A) |
| 63B5 | 95 | 115 | 140 | 11 mm | 11 mm |
| 63B14 | 60 | 75 | 90 | 11 mm | 11 mm |
Output Flange Dimensions SSVF040F (304 SS)
| a1 | KA | KB | KC | KD | KM | KN | KQ | KP | KO |
|---|---|---|---|---|---|---|---|---|---|
| 45 deg | 67 | 7 | 4 | 31.5 | 75 | 60 | 95 | 110 | 9 |
Output Shaft Dimensions (040)
| d | B | B1 | G1 | L | L1 | f | b1 | t1 |
|---|---|---|---|---|---|---|---|---|
| 18 | 40 | 43 | 78 | 128 | 164 | M6x17 | 6 | 20.5 |
Core Features and Engineering Advantages
🔒 Self-Locking at High Ratios
At ratios of 40:1 and above, the EP-SSVF40 worm geometry delivers inherent self-locking, keeping loads stationary when the motor is de-energised — eliminating external brakes on vertical lifts, gate drives, and dosing systems, saving cost and reducing machine complexity.
🌶 Food-Grade Hygienic Design
Full 304 stainless steel construction combined with mirror electrolytic polishing ensures zero bacterial harbouring surfaces. Compliant with FDA material standards, the EP-SSVF40 withstands daily CIP/SIP wash-down in meat processing, dairy, and bakery lines.
🔌 Ultra-Compact 115.5 mm Envelope
At only 115.5 mm overall length, the EP-SSVF40 installs in machine frames and enclosed conveyors where larger reducers are not an option. The direct IEC flange interface eliminates coupling adapters, reducing axial stack length and enabling faster assembly.
🔧 11 Speed Ratios — One Platform
From 7.5:1 for higher-speed conveyors to 100:1 for slow rotary tables and agitators, the EP-SSVF40 covers virtually all low-power hygienic drive scenarios without switching gearbox families, simplifying spare-parts inventory and design standardisation.
🔊 Low Vibration and Quiet Operation
The 12-2 tin-bronze worm wheel absorbs shock loads and runs quietly, reducing noise levels compared to helical or spur gearboxes of similar output torque. This makes the EP-SSVF40 suitable for laboratory automation and pharmaceutical packaging where noise limits are strict.
✅ CE and ISO 9001 Certified
Every EP-SSVF40 unit leaves the factory conforming to ISO 9001:2015 quality management standards and carries CE marking for machinery directive compliance. Full material traceability certificates available on request for pharmaceutical and regulated applications.
Industry Applications and Typical Use Cases
The EP-SSVF40 compact stainless footprint and self-locking capability make it the default choice for engineers designing low-power hygienic drives. Below are the most common deployment scenarios.
🍳 Food and Dairy Processing
Installed on portioning conveyors, filling nozzle drives, and cream agitator shafts. The mirror-polished 304 SS housing meets EHEDG hygienic design guidelines, withstanding USDA-approved sanitiser concentrations and steam-cleaning cycles. Key long-tail match: stainless steel worm gearbox for food processing conveyor.
🍻 Beverage Bottling Lines
Drives bottle-orientation stars, cap-tightening spindles, and labelling drum indexers. The 7.5:1 ratio supports higher-speed lines while the self-locking at 40:1+ prevents back-drive on indexing stations during E-stop events — a key safety requirement in high-OEE filling facilities.
💧 Water and Wastewater Treatment
Used on dosing pump drives, UV-lamp rotary cleaners, and chemical metering valves. The full stainless construction resists chlorinated water, sodium hypochlorite, and acidic/alkaline dosing chemicals without painting or coating that can flake into treated water streams.
📦 Compact Conveyor and Material Handling
Powers mini-belt conveyors, pallet turntables, and pharmaceutical blister-pack transfer tracks. The direct flange mount to IEC 63 or 71 frame motors means zero coupling alignment issues and fast motor swaps during maintenance windows, reducing planned downtime by design.
Selection Guide and Certifications
How to Select the Right EP-SSVF40 Configuration
Step 1 — Confirm required output torque. The EP-SSVF40 is sized for light-duty hygienic applications typically up to 0.37 kW input. Calculate load torque (T = 9550 x P / n_out) and ensure it falls within the rated output torque for your chosen ratio.
Step 2 — Choose your ratio. For conveyors requiring 30-150 RPM output: ratios 7.5-20 are typical. For agitators, rotary valves or indexing at 5-30 RPM: ratios 30-100. Self-locking is reliable at i greater than or equal to 40.
Step 3 — Match your motor frame. The EP-SSVF40 accepts IEC 63B5, 63B14, 71B5, and 71B14 flanges. Note that 71-frame motors are limited to ratios 7.5-30 (key size 14 mm), while 63-frame motors cover all 11 ratios (key size 11 mm).
Step 4 — Select output configuration. Choose hollow bore (standard), double solid shaft (DS), single solid shaft (SS), or output flange (F type) with dimensions from the tables above. Torque arm brackets are available for conveyor-drum mounting.
Quality Certifications
✅ ISO 9001:2015
✅ FDA-Compatible Materials
✅ RoHS Compliant
✅ Material Traceability Certificate
Frequently Asked Questions — EP-SSVF40
Is the EP-SSVF40 truly self-locking, and at which ratios?
The EP-SSVF40 achieves mechanical self-locking at gear ratios of 40:1 and above due to the low lead angle of the worm thread relative to the friction coefficient of the tin-bronze wheel. At ratios below 40:1, back-driving is possible under load, so a motor brake should be specified for vertical or holding applications. Always verify self-locking with a static load test for safety-critical installations.
What IEC motor frames are compatible with the EP-SSVF40?
The EP-SSVF40 accepts IEC standard flanges 71B5 (N=110, M=130, P=160), 71B14 (N=70, M=85, P=105), 63B5 (N=95, M=115, P=140), and 63B14 (N=60, M=75, P=90). Single-phase and three-phase AC motors, brushless DC motors, and servo motors with these flange standards mount directly without adapter plates.
Can the EP-SSVF40 be used in direct food contact zones?
The housing, shafts, and visible fasteners are all 304 stainless steel — a food-safe material per FDA 21 CFR and EU regulation 1935/2004. The electrolytically polished surface achieves Ra 0.8 um, preventing bacterial biofilm build-up. The synthetic oil fill is food-grade H1 certified when specified. We recommend specifying food-grade seals and H1 lubricant for direct-contact zones.
What is the maximum input speed for the EP-SSVF40?
The EP-SSVF40 is designed for standard IEC motor speeds of 1400-1500 RPM (50 Hz, 4-pole) and up to 1700-1800 RPM (60 Hz). Higher input speeds increase oil temperature and bearing wear; consult Ever-power engineering for applications above 3000 RPM. For variable-speed drive (inverter/VFD) applications, ensure minimum speed does not compromise worm gear lubrication film.
Is a double-output-shaft version available for the EP-SSVF40?
Yes. The EP-SSVF40 is available with a hollow bore (standard), single solid output shaft (SS type, d=18 mm, L=128 mm), double solid output shaft (DS type, L1=164 mm), or an output flange (F type, KA=67 mm). Torque arm brackets for conveyor-drum mounting are also available. Specify your required output configuration when ordering.
How does the EP-SSVF40 compare to the larger EP-SSVF50?
The EP-SSVF40 has a shorter 115.5 mm body versus the EP-SSVF50 at 134 mm, an o75 mm input flange versus o95 mm, and accepts smaller IEC 63-71 frame motors versus IEC 63-80 frame on the SSVF50. The SSVF50 handles higher input power and delivers greater output torque, while the SSVF40 is optimal where space is tight and power requirements are modest, typically 0.37 kW or less.
What surface finish does the EP-SSVF40 housing have?
The EP-SSVF40 housing undergoes electrolytic (electrochemical) polishing, which removes micro-peaks from the stainless steel surface to achieve a bright mirror finish with Ra typically 0.8 um. This is superior to mechanical polishing for corrosion resistance and hygienic cleanability, and it maintains the passive oxide layer of 304 SS that provides long-term rust protection.
Customer Reviews
James H. — Production Manager, Food Packaging Plant 🇦🇺 Australia
★★★★★ 5.0 / 5
“We fitted four EP-SSVF40 units onto our portion-conveyor drive shafts six months ago. The electrolytically polished housing cleans up in under a minute with our standard foam-wash protocol. Zero corrosion signs despite three wash-downs daily. Compact enough to fit inside our existing stainless shrouding without modification — a significant win for our maintenance team.”
Lars M. — Automation Engineer, Pharmaceutical Mfg 🇩🇪 Germany
★★★★★ 4.9 / 5
“Specified EP-SSVF40 at 40:1 ratio for our tablet-counting rotary disc drive. The self-locking at this ratio means we removed the motor brake entirely, saving EUR 180 per station. Noise level is noticeably lower than the cast-iron gearboxes we used previously. Documentation and dimension drawings were accurate to the millimetre — appreciated during tight mechanical integration.”
Carlos R. — Maintenance Director, Beverage Co. 🇲🇽 Mexico
★★★★☆ 4.5 / 5
“Running 12 units on our bottling line star-wheel drives for 14 months. We had one seal replacement at month 11 — normal wear — but otherwise zero unplanned stoppages. The IEC 63B5 flange fit our existing motors perfectly, so changeover was under 30 minutes per unit. Would strongly recommend for hygienic duty conveyor drives.”
Compatible Motors and Accessories
Matching IEC Electric Motors
- ⚡ IEC 63 frame — Single-phase or three-phase AC motors, B5 or B14 flange (all 11 ratios available)
- ⚡ IEC 71 frame — Single-phase or three-phase AC motors, B5 or B14 flange (ratios 7.5-30)
Standard Accessories for EP-SSVF40
📄 Output Flange SSVF040F (304 SS)
KA=67, KB=7, KC=4, KD=31.5, KM=75, KN=60, KQ=95, KP=110 mm. a1=45 degrees. Ideal for flange-mount to driven machinery.
⚙ Single and Double Solid Output Shafts
304 SS solid shafts, d=18 mm, with 6 mm keyway (b1) and M6x17 retaining thread. Single shaft L=128 mm, double shaft L1=164 mm.
🔧 Torque Arm SSVF040
K1=100, G=14, KG=31.5, KH=10, R=18, B=4 mm. Mounts to gearbox body, reacts torque loads on conveyor-drum or shaft-mount installations.
Ready to Order or Need a Custom Configuration?
Our engineering team can assist with ratio selection, motor matching, and output configuration. Distributors and OEM integrators welcome — ask about volume pricing and partnership programmes.
