SSGM-040 Stainless Steel Worm Gearbox
The SSGM-040 stainless steel worm gearbox features a precision-machined six-sided 304 stainless body with 18 mm output shaft and 40 mm center distance. Gear ratios 7.5:1 to 100:1 paired with 12-2 tin bronze gear and synthetic oil. Engineered for food processing, aquaculture, small-scale dairy, and sanitary packaging. IEC 56B to 71B motor flanges.
SSGM-040 Stainless Steel Worm Gearbox — Compact Machined-Body Hygienic Drive
The SSGM-040 stainless steel worm gearbox is a compact mid-size corrosion-resistant drive engineered for food and beverage production lines, aquaculture processing, small-scale dairy equipment, and sanitary packaging machinery. Its signature six-sided machined 304 stainless steel body distinguishes the SSGM-040 from cast-housing alternatives — all six external faces are precision machined for flatness, smoothness, and hygienic finish, eliminating the porous cast surfaces that can harbor contaminants. With an 18 mm stainless output shaft, 40 mm center distance, gear ratios from 7.5:1 to 100:1, and IEC motor flange compatibility from 56B through 71B, this SS worm gearbox delivers reliable torque transmission while meeting the strictest washdown, CIP, and surface-finish requirements. The 12-2 tin bronze worm gear paired with fully synthetic lubricant produces exceptionally quiet operation, making the SSGM-040 food-grade worm reducer an ideal specification for hygienic facilities where both performance and appearance matter.
Technical Specifications — SSGM-040
| Parameter | Specification |
|---|---|
| Model | SSGM-040 |
| Housing Material | 304 Stainless Steel (Six-Sided Machined Body) |
| Wheel Core Material | 304 Stainless Steel |
| Worm Gear Material | 12-2 Tin Bronze (CuSn12) |
| Surface Finish | Fully Machined (all six external faces) |
| Center Distance | 40 mm |
| Gear Ratio Range | 7.5:1 to 100:1 |
| Available Ratios | 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Output Shaft Diameter | 18 mm (304 Stainless Steel) |
| Output Shaft Length (B) | 40 mm |
| Overall Length (L) | 128 mm |
| Total Length with Input (L1) | 164 mm |
| Mounting Bolt | M6 x 17 |
| Compatible IEC Motor Flanges | 56B5, 56B14, 63B5, 63B14, 71B5, 71B14 |
| Lubricant | Fully Synthetic Worm Gear Oil (Factory-Filled) |
| Torque Arm Length (K1) | 100 mm |
| Mounting Options | Foot, Flange, Torque Arm (Multi-Directional) |
| IP Protection Rating | IP65 Standard, IP69K Configuration Available |
| Operating Temperature | -10 to +80 degrees C (Standard) |
Technical Reference Drawings
Standardized technical geometry shared across the entire SSGM series. The reference drawings below show the 304 stainless output shaft profiles and torque arm assembly dimensions applicable to the full range of SSGM sizes.
304 Stainless Output Shafts
Output shaft geometry reference for the SSGM-040. Shaft diameter: 18 mm with standardized keyway profile.
Torque Arm Assembly
304 stainless torque arm dimensions for shaft-mounted installation. K1 length: 100 mm.
Key Features & Benefits — SSGM-040
💪 Six-Sided Machined Stainless Housing
Precision-machined 304 stainless body delivers visibly smoother finish than cast housings — resulting in faster washdown cycles, better hygienic compliance, and a more professional appearance on show-through food production lines.
✅ 18 mm 304 Stainless Output Shaft
Solid stainless output shaft handles packaging line torque demands while eliminating corrosion risk on food-contact adjacent equipment — critical for fish processing, small-batch dairy, and compact filler drives.
🛠 Machined Flat Reference Surfaces
All six external faces provide flat reference surfaces that simplify custom bracket mounting compared to rounded NMRV housings — a meaningful efficiency gain for custom machine builders and system integrators.
🏆 Broad IEC Motor Compatibility (56B to 71B)
Accommodates IEC motor flanges from 56B through 71B — a wide range supporting fractional-kilowatt packaging drives through mid-power conveyor applications on a single compatible platform.
⚙ Self-Lubricating Bronze Worm Gear
The 12-2 tin bronze worm gear provides inherent lubricity and wear resistance, reducing friction heat generation and extending gear life — essential for continuous 24/7 packaging and bottling line duty.
🔄 Universal Multi-Position Mounting
Foot-mount, flange-mount, and torque-arm configurations suit conveyor drives, agitators, and overhead equipment — the versatility to fit existing plant layouts without custom fabrication work.
🔒 Hygienic Design for CIP Compliance
The smooth machined external surfaces withstand daily clean-in-place cycles with caustic soda, nitric acid, and peracetic acid disinfectants — where painted alternatives delaminate within months.
🛡 NMRV-Compatible Mounting Footprint
Standard 40 mm center-distance geometry enables dimensional compatibility with existing NMRV040 installation footprints, simplifying replacement of corroded painted gearboxes on legacy equipment.
Industries & Applications for the SSGM-040
🍴 Food & Beverage Processing
The SSGM-040 is the go-to corrosion-resistant gearbox for food processing lines requiring daily high-pressure washdown. The machined six-sided body delivers superior hygienic finish while the compact footprint fits packaging line spacings. Ideal for label applicators, cap feeders, and small-scale filling mechanisms.
🐟 Aquaculture & Fisheries Equipment
Oyster grading tables, mussel sorting conveyors, and fish processing equipment expose drive components to constant saltwater spray. The SSGM-040 machined 304 stainless construction resists the salt-induced corrosion that destroys painted alternatives within weeks of deployment.
🍲 Small-Scale Dairy Equipment
Compact cream separators, yogurt filler stations, and boutique cheese production conveyors benefit from the SSGM-040's CIP-resistant machined stainless body. Withstands hot caustic and nitric acid cleaning cycles that degrade other gearbox types rapidly.
📦 Packaging & Bottling Lines
Packaging machinery demands compact reliable drives for label applicators, cap tighteners, and small conveyor sections. The SSGM-040 delivers precise speed matching through the full 7.5:1 to 100:1 ratio range in a package that meets hygiene standards.
🚗 Automatic Car Wash Equipment
Automated vehicle wash tunnels subject drives to constant water, detergent, and wax chemical exposure. The SSGM-040 handles brush rotation mechanisms and small conveyor drives without the rapid corrosion that sidelines painted alternatives.
💊 Pharmaceutical Packaging
Pharmaceutical blister packaging machines, pill bottle labelers, and small-scale tablet handling equipment need hygienic stainless drives. The SSGM-040 delivers GMP-compliant surface finish in a compact package suited to dense pharmaceutical production cell layouts.
How to Choose the Right Stainless Steel Worm Gearbox
Selecting the optimal stainless steel worm gearbox for your application requires evaluating several critical parameters beyond simple torque matching. The guidance below addresses key considerations for specifying the SSGM-040 or any stainless worm reducer for corrosive-environment installations. For the broader category of drive technologies beyond worm gearboxes, explore our complete worm reducer gearbox category where the SSGM series sits alongside alternative configurations.
Torque & Load Profile
Calculate your required output torque based on the driven load including safety factors for shock loading, starting torque, and duty cycle. The SSGM-040 with its 18 mm output shaft and 40 mm center distance is engineered for applications matching standard 40-size worm reducer torque ranges. Always verify peak torque demand falls within the gearbox rating at your selected gear ratio.
Speed Ratio Selection
The SSGM-040 supports ratios from 7.5:1 to 100:1. Lower ratios (7.5:1 to 20:1) deliver highest mechanical efficiency — ideal for conveyor drives and pump applications. Mid-range ratios (25:1 to 50:1) balance speed reduction with efficiency for general processing equipment. Higher ratios (60:1 to 100:1) provide maximum speed reduction for slow-speed mixers and precision positioning systems, though with slightly reduced efficiency inherent to all worm designs.
Material Grade: 304 vs 316L Stainless Steel
The SSGM series uses 304 stainless steel which provides excellent corrosion resistance for the vast majority of applications including food processing, pharmaceutical manufacturing, freshwater environments, and mild chemical exposure. For installations with direct chloride contact such as seawater submersion or salt brine processing, or continuous strong acid exposure, consult GBC engineering about 316L options. In most washdown and processing environments, 304 SS provides the optimal cost-to-performance balance.
Why Choose a Machined Body over Cast?
The SSGM series features all six external faces fully machined, which delivers three practical advantages over cast-body stainless gearboxes. First, the machined surfaces eliminate cast-surface porosity where contaminants can lodge. Second, flat reference surfaces simplify bracket and baseplate integration on custom equipment. Third, the polished aesthetic suits show-through facilities like craft breweries, cheese-making visitor areas, and pharmaceutical demonstration lines where equipment appearance matters.
Mounting Configuration
The SSGM-040 supports foot mounting, flange mounting, and torque arm mounting (K1 = 100 mm). Foot mounting suits base-mounted equipment. Flange mounting is ideal for direct motor-to-gearbox-to-machine connections. Torque arm mounting enables direct shaft coupling without a separate support base — common on conveyor head shafts and agitator installations. The machined six-sided body simplifies bracket fabrication compared to rounded housings.
IP Protection Rating
The SSGM-040 is designed for washdown environments and offers protection suitable for high-pressure water jet cleaning. For specific IP69K certification requirements, consult GBC to confirm the seal and shaft configuration meets your protection standard. Standard configurations support daily washdown cycles at pressures up to 80 bar.
Stainless Steel vs. Painted Cast Iron Worm Gearbox
| Comparison Factor | SSGM-040 (304 Machined) | Painted Cast Iron |
|---|---|---|
| Corrosion Resistance | Inherent throughout entire housing | Coating-dependent, fails on chip |
| Surface Finish Quality | Machined on all 6 faces — very smooth | Painted over rough cast surface |
| Washdown Durability | Unlimited high-pressure cycles | Paint degrades with repeated exposure |
| Hygienic Compliance | HACCP, FDA, GMP surface standards | Paint flaking creates contamination risk |
| Service Life (Corrosive) | 10-20+ years typical | 6-24 months before coating failure |
| Installation Flexibility | Flat faces ease bracket integration | Rounded body needs custom brackets |
| Lifecycle Cost | Lower over 10-year horizon | Recurring paint and replacement costs |
| Visual Appearance | Show-quality machined stainless | Painted utility appearance |
| Environmental Suitability | Marine, chemical, food, pharma, outdoor | Dry indoor environments only |
Frequently Asked Questions — SSGM-040
Customer Reviews — SSGM-040
★★★★★
"We run SSGM-040 gearboxes on our oyster grading tables. The six-sided machined body survives daily saltwater spray without any corrosion blooms that plagued our old painted gearboxes."
Tom Richardson — Fisheries Equipment Manager | Australia
★★★★★
"The smooth machined surface passes our pharmaceutical audits with ease. The SSGM-040 is now standard specification on all new packaging line installations."
Lena Koch — Hygiene Compliance Officer | Austria
★★★★☆
"Solid build quality and the bronze worm gear is exceptionally quiet. We moved 12 units into our spice milling facility and eliminated painted gearbox replacements entirely."
Vikram Singh — Maintenance Lead | India
★★★★★
"Excellent hygienic design for our yogurt filler drives. The machined corners make cleaning with our CIP system much more efficient than rounded housings."
Nina Petrova — Operations Engineer | Bulgaria
★★★★★
"The SSGM-040 drives our artisan chocolate tempering wheels flawlessly. The stainless finish handles cocoa butter spills without staining or degradation."
Thomas Weber — Process Specialist | Switzerland
Related Products
The SSGM series sits alongside several complementary stainless drive technologies within our broader corrosion-resistant gearbox lineup. For applications where the traditional rounded NMRV-style housing is preferred over the six-sided machined geometry, review our SSRV Stainless Steel Worm Reducer series which offers the same 304 stainless construction in a traditional cast-body form factor with identical NMRV dimensional geometry.
For double-reduction requirements or applications demanding deeper gear reduction beyond a single-stage worm drive, the SSVF Stainless Steel Reduction Gearbox series provides high-performance reduction configurations compatible with the same motor flange standards used across the SSGM range. The SSVF series is particularly suited to heavy-duty industrial and marine environments requiring extended reduction ratios.
Compatible stainless steel Electric Motors designed for hygienic washdown and corrosive environments complete the SSGM drive train. These IEC-standard motors pair directly with the SSGM motor flange options and share the corrosion-resistant stainless construction philosophy, delivering a fully integrated stainless drive solution from power source through output shaft. Contact our engineering team for motor sizing and matching recommendations.
Specify the SSGM-040 for Your Next Packaging or Food Line Project
From aquaculture conveyor drives to small-scale dairy equipment, the SSGM-040 delivers hygienic machined stainless performance at a compact footprint. GBC provides complimentary sizing consultation, CAD drawings, and dedicated project support.
Free Technical Support | CAD Files Available | Global Shipping
The SSGM-040 stainless steel worm gearbox features a precision-machined six-sided 304 stainless body with 18 mm output shaft and 40 mm center distance. Gear ratios 7.5:1 to 100:1 paired with 12-2 tin bronze gear and synthetic oil. Engineered for food processing, aquaculture, small-scale dairy, and sanitary packaging. IEC 56B to 71B motor flanges.
