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EP-SSRV090 — Stainless Steel Worm Gear Reducer Overview
Large-scale hygienic machinery — industrial washing machines, heavy agitators, drum dryers, and high-torque filling systems — demands the largest, most torque-dense option in the stainless worm reducer portfolio. The EP-SSRV090 is the flagship of the SSRV series: a size-90, 304 stainless steel worm gear reducer with a Ø35 mm stainless output shaft, acceptance of 100/112 IEC motor frames, and a 200 mm torque arm rated for the highest reaction torques in the range. Compared with all smaller SSRV models, the SSRV090 delivers the greatest output torque (up to ~500 Nm at ratio 100:1 from a 3 kW motor), making it the definitive choice for engineering teams specifying stainless drive systems in food, chemical, and pharmaceutical heavy-process applications where aluminium alternatives are unacceptable.
Technical Specifications — EP-SSRV090
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 100/112B5 | 180 | 215 | 250 | 8 | 31.3 | 28/28/28/28/28/28 | –/–/–/– | 35 | 10 | 38.3 |
| 100/112B14 | 110 | 130 | 160 | 8 | 31.3 | 28/28/28/28/28/28 | –/–/–/– | 38* | 10* | 41.3* |
| 90B5 | 130 | 165 | 200 | 8 | 27.3 | 24/24/24/24/24/24/24/24/24 | –/–/–/– | 35 | 10 | 38.3 |
| 90B14 | 95 | 115 | 140 | 8 | 27.3 | 24/24/24/24/24/24/24/24/24 | –/–/–/– | * | * | * |
| 80B5 | 130 | 165 | 200 | 6 | 21.8 | –/–/–/–/–/19/19/19/19/19/19/19/19/19/19 | 19/19/19/19/19/19/19/19/19/19 | 35 | 10 | 38.3 |
| 80B14 | 80 | 100 | 120 | 6 | 21.8 | –/–/–/–/–/19/19/19/19/19/19/19/19/19/19 | 19/19/19/19/19/19/19/19/19/19 | 35 | 10 | 38.3 |
* Non-standard product, order on request.
304 SS Output Shaft Dimensions
| d (mm) | B | B1 | G1 | L | L1 | f (thread) | b1 | t1 |
|---|---|---|---|---|---|---|---|---|
| Ø35 mm | 80 | 84.5 | 140 | 234 | 309 | M12×34 | 10 | 38 |
304 SS Torque Arm Dimensions
| K1 (mm) | G (mm) | KG (mm) | KH (mm) | R (mm) | B (mm) |
|---|---|---|---|---|---|
| 200 | 25 | 57.5 | 20 | 30 | 6 |
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° | 111 | 13 | 6 | 44 | 175 | 152 | 14 | 210 | 200 |
Core Features & Benefits
Ø35 mm 304 Stainless Output Shaft — Maximum Radial Load in SSRV Range
The Ø35 mm output shaft (L=234 mm, M12×34 thread) provides the highest permissible radial overhang and axial load capacity in the SSRV family, supporting large sprockets, chain drives, and direct-shaft-mount configurations without outboard bearings.
Handles Up to 3 kW Input with 100/112 IEC Motor Flange
The SSRV090 is the only model in the SSRV series rated for 3 kW continuous input power, achievable with 100/112B5 or 100/112B14 flanges. This unlocks the highest continuous torque delivery in the entire SSRV range.
200 mm × 25 mm Torque Arm — Heavy Shaft-Mount Capacity
The SSRV090 torque arm (K1=200 mm, G=25 mm, B=6 mm) is dimensioned for high-reaction-torque shaft-mounted conveyor drives, eliminating the need for a foot-mount bracket in space-constrained installations.
Output Flange KP=210 mm PCD — Largest in SSRV Series
The ..F flange option (KA=111 mm, KM=175 mm, KP=210 mm) supports direct coupling to large agitator vessels and drum assemblies, providing a leak-free, rigid connection without flexible couplings.
Electrolytically Polished — All Six Housing Faces Machined
Unlike grey cast-iron alternatives, all six external faces of the SSRV090 housing are CNC-machined and electrolytically polished to Ra ≤ 0.8 µm, ensuring no dirt-trap geometry and full CIP-compatibility across the entire outer surface.
Industry Applications & Typical Use Cases
Industrial Washing & Dishwashing Machines
Large industrial warewashers and tunnel washers run continuous three-shift cycles in hot alkaline and acidic environments. The SSRV090’s 304 housing and Ø35 mm stainless shaft survive these conditions where coated cast-iron units fail within a year.
Industrial Drum Dryers & Rotary Kilns
Slow-speed drum drives (2–15 rpm) in food, fertiliser, and mineral processing require high continuous torque. The SSRV090 at ratio 80–100:1 from a 2.2–3 kW motor covers this demanding operating point.
Chemical Reactor Drives
Large-scale chemical reactors with slow-speed anchor or gate agitators specify the SSRV090 for its chemical-resistant 304 housing and self-locking capability at ratios ≥ 30:1, allowing safe static load-holding during process pauses.
Large-Scale Food Processing
Continuous cooking tunnels, large-capacity mixers, and whole-carcass conveyor lines in meat and poultry processing specify the SSRV090 for its resistance to steam, fat, and acidic cleaning agents at elevated temperatures.
Wastewater & Sludge Treatment
Heavy-duty sludge de-watering conveyors and slow-speed agitators in municipal wastewater plants benefit from the SSRV090’s robust construction and its compatibility with both B5 and B14 100/112 motor flanges.
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-SSRV090. 5. Specify accessories — DS/SS shaft, torque arm, or ..F flange option as needed.
Certifications & Quality Standards
❓ Frequently Asked Questions
⭐ Customer Reviews
“We’ve run the SSRV090 on our tunnel washer conveyor drives for two years in a 70°C caustic environment. Zero corrosion, zero seal failures. The 35 mm stainless shaft handles the heavy-duty chain load effortlessly. Absolutely the right product for demanding washdown duty.”
Dave Simmons — Industrial Washers Australia Pty
Australia 🇦🇺
“Installed on a large reactor agitator at ratio 60:1. The 304 stainless construction was a hard requirement for our process approval. The SSRV090 passed our third-party material verification and has run 18 months in a chlorinated-water environment without issue.”
Fatima Al-Rashidi — Chemical Processing Equipment LLC
UAE 🇦🇪
“Using on a large-capacity meat-processing conveyor. The self-locking at ratio 40:1 eliminates the brake we previously needed on our inclined section. Good torque, excellent hygiene properties. Datasheet could be clearer on S1 thermal limits at ratio 60:1.”
Tomáš Novák — Potravinářská Technika s.r.o.
Czech Republic 🇨🇿
🔗 Related Products & Accessories
Single-phase and three-phase B5/B14 stainless IEC motors in 63–100/112 frames. Direct bolt-on to EP-SSRV090 input flange — no adaptor required.
Ø35 mm 304 stainless DS (double) and SS (single) output shafts. Full dimensions: d=35, B=80, L=234 mm.
304 SS torque arm for shaft-mount configurations. K1=200 mm, KG=57.5 mm.
304 SS output flange for direct vessel or shaft coupling. KM=175 mm PCD, 14 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-SSRV090
For your most demanding hygienic heavy-process drives, the EP-SSRV090 delivers. Contact Ever-power for a full selection consultation and quotation.
✓ OEM & Distributor enquiries welcome | ✓ Custom ratios available | ✓ Full stainless motor-gearbox assemblies
