Drive & Conveying

Stainless Steel Gears

CNC-hobbed and CNC-milled 304, 316L and 17-4PH stainless steel gears — spur, helical, bevel, worm and rack & pinion. Custom module/DP, tooth count, bore and keyway. DIN 3962 accuracy class 6–9.

Gears Supplier

Stainless Steel Gears Manufacturer in China

Profab Machine specializes in manufacturing high-performance stainless steel gears. We provide stainless steel spur gears, stainless steel miter gears, stainless steel worm gears, and custom gears. Our gears are built to perform in demanding environments such as automotive, chemical plants, marine systems, and industrial automation. Each gear is crafted with exact tooth geometry, ensuring smooth torque transmission and minimal maintenance downtime.

Profab offers a variety of stainless steel garde. Surface treatments such as electropolishing, passivation, precision grinding, black oxide coating, and PTFE coating. They can enhance corrosion resistance and mechanical performance.

Product Range

Types of Stainless Steel Gears

Gear type determines shaft arrangement, load capacity, noise level, and efficiency. Using the wrong type for your shaft layout is not a performance compromise — it is a physical impossibility. Select type first, then specify module and grade.

Spur Gears

Parallel shafts

M0.5–M20 · DP 4–48

Straight teeth cut parallel to the gear axis — the most widely manufactured type. Low cost to produce, simple to align, no axial thrust load on bearings. The correct choice for parallel shaft drives in food processing equipment, pump drives, conveyor gearboxes, and automation systems where operating speed is moderate and noise is not the primary specification.

Helical Gears

Axial thrust load

Mixer · Pharma

Teeth cut at a helix angle (typically 15°–30°) to the gear axis. Multiple teeth are in contact simultaneously, distributing load progressively. Higher load capacity, lower noise, and smoother transmission at higher speeds than equivalent spur gears. The trade-off is an axial thrust force that the bearing arrangement must accommodate. In stainless specification, helical gears are correct for food mixer main drives, pharmaceutical tablet press drives, and packaging machine main shafts.

Bevel Gears

Right-angle drive

90° shaft crossing

Conical gear geometry for transmitting torque between shafts that intersect at an angle — most commonly 90°. The only gear type capable of changing shaft direction at right angles without an intermediate worm or belt stage. Straight bevel gears are the correct specification for low-speed right-angle drives such as food processing cross-shaft drives and agitator angle gearboxes; spiral bevel gears for higher-speed right-angle drives where straight bevel tooth impact would generate unacceptable noise.

Worm Gear Sets

Right-angle compact

High torque

A helical worm shaft drives a worm wheel at 90° with a high reduction ratio in a single stage. The inherently high sliding contact between worm and wheel generates more heat and requires better lubrication than rolling-contact gears. Stainless steel worm gear sets are correct for food processing index drives, chemical valve actuators, and slow-speed agitator gearboxes. Worm gear efficiency (typically 40–90%) is substantially lower than spur or helical drives.

Material Specification

Choosing the Right Grade

304 Stainless

Standard grade for indoor machinery, automation, and dry or mildly humid environments. Good resistance to cleaning chemicals. Cost-effective for high-volume orders. Not suitable for continuous salt spray or chloride-heavy process environments.

Food · Automation · Indoor

316 / 316L

Marine and food-grade standard. 2–3% molybdenum addition raises chloride pitting resistance significantly above 304. Required for outdoor, marine, offshore, and food equipment with CIP chemical cleaning. Especially 316 stainless steel has excellent resistance to corrosive saltwater effects.

Marine · Chemical · Pumps

17-4PH

Precipitation-hardened martensitic grade. ≥ 1,310 MPa tensile strength in H900 condition — significantly stronger than 316 at equivalent cross-section. Specified for ball joints in motorsport, aerospace, and high-cycle fatigue applications where load ratings are the primary constraint.

Aerospace · Motorsport · Hi-load

Applications

Where Stainless Steel Gears Are Used

Profab stainless steel gears are mainly used in transmissions, reduction gears, and steering gears in automobiles. In addition to these applications, stainless steel gears are used in a wide range of applications:

Engine Timing & Accessory Drives

Stainless steel timing gears and pulleys ensure precise valve synchronization. These components withstand high engine bay temperatures and constant oil exposure. Profab gears maintain sharp tooth profiles to prevent belt slippage and timing errors. The material choice eliminates the rust issues common with carbon steel in high-humidity environments.

Heavy-Duty Differentials

Differential gears manage torque distribution in rugged drivetrain systems. Stainless steel construction resists surface pitting and metal fatigue under extreme loads. These gears are ideal for off-road machinery and mining equipment where soil and moisture are present. Profab ensures high surface hardness to extend the gear life cycle in high-friction environments.

Industrial & Automotive Transmissions

Transmission systems require stainless gears for smooth shifting and long-term durability. The material resists abrasive wear from continuous metal-to-metal contact. Precise CNC machining ensures exact gear mesh and minimal backlash. This increases shifting accuracy and reduces noise levels in both industrial gearboxes and vehicle transmissions.

Precision Speed Reducers

Worm gears in speed reducers provide high torque conversion for heavy-duty machinery. Stainless steel resists the intense friction-induced heat generated during continuous operation. These components are essential for chemical mixers and industrial conveyor drives. Profab speed reducer gears offer high mechanical efficiency and require minimal lubrication maintenance.

Medical & Laboratory Robotics

Medical gear drives require extreme hygiene and corrosion resistance. Stainless 316L survives repeated chemical sterilization and autoclave cycles without degrading. These precision gears drive robotic surgical arms and automated diagnostic pumps. Profab delivers burr-free, polished gear surfaces to prevent bacterial harborages in sterile environments.

Renewable Energy & Solar Trackers

Solar tracking systems use stainless gears to adjust panel angles throughout the day. These components resist rain, salt spray, and UV exposure in outdoor installations. Stainless steel eliminates the need for protective plating or frequent repainting. This ensures 20+ years of maintenance-free operation for large-scale renewable energy projects.

Why Profab

Your Reliable Stainless Steel Gears Supplier

Direct-from-Manufacturer Advantage

We are the original manufacturer—eliminate all unnecessary middlemen. That means you get the most competitive prices in the market. Enjoy maximum profit margins while ensuring consistent, high-quality stainless steel parts tailored for your business.

Engineering Support and Fast Sampling

We work closely with your technical team to understand and respond to your unique part needs. Whether it’s a CAD file, material conversion or specific tolerances, we can quickly provide samples and provide expert feedback to accelerate your product development.

Volume Discounts for Scalable Business

The more you order, the more you save. We offer tiered pricing for bulk orders, helping you stay competitive as you scale your business. Enjoy more flexible terms for long-term partnerships.