Beskrivning
EP-SSRV050 — Stainless Steel Worm Gear Reducer Overview
When process engineers specify a worm reducer for wet or corrosive environments and need proven compatibility with the broadest range of IEC 63–80 frame motors, the EP-SSRV050 fills the gap between compact fractional-horsepower units and heavy-duty industrial sizes. This mid-range, size-50 stainless steel worm gear reducer features a 304 precision-cast housing with electrolytic polish, a Ø25 mm 304 stainless output shaft, and full NMRV050 dimensional compatibility. Across the SSRV series, the SSRV050 is the first model to accommodate 80B5/B14 motor flanges — expanding the power range to 0.37 kW — making it the workhorse choice for food-grade conveyor lines, dairy processing equipment, and chemical dosing systems where hygiene and torque density must coexist.


Technical Specifications — EP-SSRV050

Motor Flange Mounting Dimensions
| PAM-IEC | N(H8) | M | P | b1 | t1 | N(FB) Ratio 7.5–60 | N(FB) Ratio 80–100 | D(H7) | b | t |
|---|---|---|---|---|---|---|---|---|---|---|
| 80B5 | 130 | 165 | 200 | 6 | 21.8 | 19/19/19/19/19/19 | –/–/–/– | 25 | 8 | 28.3 |
| 80B14 | 80 | 100 | 120 | 6 | 21.8 | 19/19/19/19/19/19 | –/–/–/– | 24* | 8* | 27.3* |
| 71B5 | 110 | 130 | 160 | 5 | 16.3 | 14/14/14/14/14/14/14/14 | –/–/–/– | 25 | 8 | 28.3 |
| 71B14 | 70 | 85 | 105 | 5 | 16.3 | 14/14/14/14/14/14/14/14 | –/–/–/– | 24* | 8* | 27.3* |
| 63B5 | 95 | 115 | 140 | 4 | 12.8 | –/–/–/–/–/–/11/11/11/11 | 11/11/11/11 | 25 | 8 | 28.3 |
| 63B14 | 60 | 75 | 90 | 4 | 12.8 | –/–/–/–/–/–/11/11/11/11 | 11/11/11/11 | 25 | 8 | 28.3 |
* Non-standard product, order on request.
304 SS Output Shaft Dimensions

| d (mm) | B | B1 | G1 | L | L1 | f (thread) | b1 | t1 |
|---|---|---|---|---|---|---|---|---|
| Ø25 mm | 50 | 53.5 | 92 | 153 | 199 | M10×27 | 8 | 28 |
304 SS Torque Arm Dimensions

| K1 (mm) | G (mm) | KG (mm) | KH (mm) | R (mm) | B (mm) |
|---|---|---|---|---|---|
| 100 | 14 | 38.5 | 10 | 18 | 4 |
Output Flange Dimensions (..F Option)

| α1 | KA (mm) | KB (mm) | KC (mm) | KD (mm) | KM (mm) | KN (mm) | KO (qty) | KP (mm) | KQ (mm) |
|---|---|---|---|---|---|---|---|---|---|
| 45° | 90 | 9 | 5 | 46.5 | 85 | 70 | 11 | 125 | 110 |
Core Features & Benefits
Ø25 mm 304 Stainless Output Shaft — No Dissimilar-Metal Contact
The standard output shaft is precision-ground 304 stainless steel, eliminating the galvanic corrosion risk that arises when carbon-steel shafts mate with stainless housings in wet environments.
Six Flange Options (63–80 IEC) — Broadest Motor Compatibility in Size 50
Accepting 80B5, 80B14, 71B5, 71B14, 63B5, and 63B14 PAM-IEC flanges, the SSRV050 covers 0.12–0.37 kW motor range without adaptor plates, reducing BOM complexity for OEM builders.
Fully Synthetic Worm Oil — Extended Service Life
Factory-filled with H1 food-compatible fully synthetic ISO VG 150 oil, the SSRV050 achieves 2,000-hour service intervals versus 500 hours for mineral-oil fills, reducing planned-maintenance frequency.
Electropolished 304 Housing — Ra ≤ 0.8 µm
The electrolytic polishing process removes surface iron, raises chromium oxide passivation depth, and achieves Ra ≤ 0.8 µm — exceeding 3-A Sanitary Standard 78-03 surface requirements.
304 Torque-Arm Accessory for Shaft-Mount Configurations
The optional 304 stainless torque arm (K1=100 mm, G=14 mm) enables flange-output or shaft-mount installations where the reducer is cantilever-supported, maintaining full stainless material consistency.

Industry Applications & Typical Use Cases
Dairy & Beverage Processing
CIP-washdown lines in dairy plants cycle hot caustic and acid multiple times per day. The SSRV050’s 304 housing and synthetic oil withstand this chemical regime while maintaining EHEDG-consistent surface quality.
Chemical Dosing & Metering
Peristaltic pump drives and metering screw conveyors in chemical plants rely on the SSRV050’s corrosion resistance in chlorinated water and mild acid atmospheres — without the mass penalty of heavy-duty cast-iron alternatives.
Food Conveyor Lines
Horizontal belt conveyors and bucket elevators in meat and poultry plants specify the SSRV050 for its IP55 sealing, washdown-safe surfaces, and wide speed-ratio range (7.5–100:1) covering both slow indexing and continuous feed.
Water Treatment Equipment
Slow-speed paddle mixers and sludge scrapers in water-treatment facilities benefit from the SSRV050’s corrosion tolerance in chlorinated environments and its multi-position mounting flexibility.
Packaging Machinery OEM
OEM machine builders standardise on the SSRV050 because its NMRV050-compatible bolt pattern means zero tooling changes when upgrading to stainless for export markets with strict hygienic-design mandates.
Selection Guide, FAQ & Customer Reviews
How to Select the Right SSRV Model
1. Determine required output torque (Nm) from your load and duty cycle. 2. Calculate required ratio = motor speed (rpm) ÷ required output speed (rpm). 3. Check the selection table — locate the row matching your motor power and ratio; confirm the listed radial force (fs) does not exceed your shaft load. 4. Verify motor flange — match your motor frame (56–112) to the available PAM-IEC flange options for EP-SSRV050. 5. Specify accessories — DS/SS shaft, torque arm, or ..F flange option as needed.
Certifications & Quality Standards
❓ Frequently Asked Questions
⭐ Customer Reviews
“Running on our yoghurt filling lines — three shifts, seven days. After 18 months in a caustic CIP environment, the housings look as good as the day we installed them. The NMRV bolt pattern made the upgrade seamless. Excellent product.”
Ben Cartwright — Dairy Solutions Pty Ltd
Australia 🇦🇺
“Specified SSRV050 for a mozzarella-brine conveyor. The full stainless construction passed our internal hygiene audit first time. Output torque has been consistent over 12 months of continuous operation.”
Luisa Ferrari — Impianti Alimentari Srl
Italy 🇮🇹
“We use SSRV050 on our kimchi-line dosing conveyors. The corrosive brine environment destroys standard units in months — the stainless SSRV series has now run a full production year without any surface degradation.”
Min-jun Park — Seoul Food Machinery Co.
South Korea 🇰🇷
🔗 Related Products & Accessories
Single-phase and three-phase B5/B14 stainless IEC motors in 63–100/112 frames. Direct bolt-on to EP-SSRV050 input flange — no adaptor required.
Ø25 mm 304 stainless DS (double) and SS (single) output shafts. Full dimensions: d=25, B=50, L=153 mm.
304 SS torque arm for shaft-mount configurations. K1=100 mm, KG=38.5 mm.
304 SS output flange for direct vessel or shaft coupling. KM=85 mm PCD, 11 bolt positions.
304 SS input-shaft protective cover available for applications where IP55 is insufficient. Upgrades shaft entry to IPX6 standard.
🏭 Our Manufacturing Facility



✉ Get a Quote for EP-SSRV050
Upgrade your food-line drives to full 304 stainless. Request a quote for the EP-SSRV050 or speak with an Ever-power application engineer today.
✓ OEM & Distributor enquiries welcome | ✓ Custom ratios available | ✓ Full stainless motor-gearbox assemblies

