Varvel worm gearbox - F RS 85 - Output shaft Ø35mm

Varvel FRS85 Ø35mm Reducer: Power and Reliability for Your Industrial and Agricultural Transmissions

Designed to meet the demands of the most rigorous production environments, the Varvel FRS85 worm gearbox stands out for its unfailing robustness, compact architecture, and remarkable versatility. Intended for both industrial and agricultural applications, it guarantees durable, precise, and low-maintenance transmission, even under intensive operating conditions.

Manufactured in the Emilia-Romagna region of Italy, renowned for its excellence in mechanical transmission, the FRS85 successfully equips conveyors, mixers, transport systems, agricultural machinery, automated lines, and labeling machines, as well as any equipment operating in continuous and prolonged cycles.

At Dymatec Industries, each FRS85 reducer benefits from rigorous quality control and precise configuration to ensure optimal integration into your current production facilities.

The FRS85 Ø35mm: In Which Sectors and Applications is This Reducer Used?

Thanks to its ability to deliver high torque at low speed and its great installation flexibility, the FRS85 is an essential transmission component in many sectors:

• Conveyors and belt conveyors: conveying parts, packages, or bulk materials on production lines
• Mixers and agitators: homogenization of food, chemical, or pharmaceutical products
• Screw conveyors and dosing systems: precise distribution of raw materials in agri-food and plastics processing
• Agricultural machinery: spreaders, seeders, irrigation systems, and harvesting equipment
• Gates and lifting systems: automated control of barriers, industrial valves, and hatches
• Pumps and compressors: slow drive for viscous or heavily loaded fluids
• Packaging and labeling lines: precise synchronization of speeds on packaging lines
• Handling equipment: lifting tables, motorized trolleys, and automated transfer systems

Its low noise level and contained footprint — two characteristic advantages of worm gear transmissions — make it a particularly suitable solution for environments where silence, compactness, and longevity are absolute priorities.

The G-version coupling protects the motor shaft and optimizes the lifespan of your installation

The FRS85 integrates a G-version motor-reducer coupling ensuring direct, stable, and loss-free torque transfer. This device eliminates the risk of motor shaft seizure during prolonged shutdowns, reduces unforeseen corrective interventions, and contributes to significantly lowering your maintenance costs over time.

Precisely calibrate your transmission with the FRS85's 12 reduction ratios

The FRS85 offers 12 reduction ratios: 5, 7, 10, 15, 20, 28, 40, 49, 56, 70, 80, and 100, allowing for fine adjustment of the output speed and transmitted torque according to the constraints of each application. The calculation is immediate: motor speed ÷ reduction ratio = output speed.

Four mounting options for perfect integration on all your equipment

The FRS85 adapts to all mounting constraints thanks to its different installation configurations:

• Mounting on casing (PC version)
• FL or FB output flange with standardized bolt patterns
• Mounting on mounting feet
• Torque arm with silent block to neutralize vibrations and dynamic forces

Hollow shaft Ø35 mm supplied as standard, with customizable output options

The FRS85 is supplied as standard with a Ø35 mm hollow shaft ensuring a direct, precise, and backlash-free connection to your machine. For specific needs, two alternative output configurations are available:

• Single-sided solid output shaft (AS)
• Double-sided solid output shaft (AD)

Native compatibility with IEC 80, 90, 100, and 112 standardized motors

The FRS85 accepts motor input flanges compliant with the following IEC standards:

These associations guarantee a precise and robust mechanical connection between motor and reducer for uncompromised power transfer.

Numerous technical options to configure your FRS85 reducer according to your needs

The FRS85 comes in several variants to adapt to the specificities of each application:

• AD: double output shaft
• AS: single output shaft
• ASC: protective cover for hollow shaft
• TLI: internal torque limiter
• TLE: adjustable external torque limiter
• GRM: reduced backlash version for high-precision applications
• VB: worm extension on the opposite side of the shaft
• VIT: Viton seals for chemically aggressive environments
• ATEX: certified version for explosive atmospheres

The Varvel FRS85 Ø35mm: a direct and reliable replacement for major brand reducers

For a secure replacement, verify that the existing output shaft is indeed Ø35 mm. In case of equipment modernization or renovation, provide the nameplate of your current reducer to quickly identify the technically equivalent or superior solution.

The FRS85 is interchangeable with reducers from the following manufacturers:

• Motovario
• Bonfiglioli
• SITI
• STM
• SEW-Eurodrive (depending on configurations)
• Rossi

Our team of mechanical transmission specialists is available to assist you in choosing the ideal reducer and ensure a rapid return to production, without modification of your existing infrastructure.