Червячный редуктор EP-NMRV с выходным фланцем

EP-NMRV Worm Gear Reducer with Output Flange — Flange Series, Models 030–150

Complete Technical Specifications

The specification table below provides the full material, configuration, and dimensional reference for the EP-NMRV series. Use this table in conjunction with the parameter table and the model code guide that follow it when writing a purchase specification or machine BOM.

EP-NMRV Parameters — Models 030 to 150

Shaft diameter values in parentheses indicate alternative bore diameters available within that frame. Confirm your motor shaft and output coupling diameters against these values before ordering.

Understanding the EP-NMRV Model Code

The model code encodes all configuration options in a single string. Example: EP-NMRV-063-30-VS-F1(FA)-AS-80B5-0.75KW-B3 decodes as follows:

When ordering, provide the complete model string on your purchase order — this eliminates configuration errors at the factory and avoids delays from back-and-forth clarification. For a full list of model options across all червячный редуктор configurations, see the product category page.

Application Industries for the Output Flange Configuration

The output flange version of this червячный редуктор is most commonly specified in three types of applications where a direct flange face is preferable to a keyed shaft.

▸ Food Processing — Rotary Filling and Dosing Heads

Rotary filling and dosing head assemblies bolt directly to the gearbox output flange. Centring is guaranteed by the register diameter machined into the flange face, so the filling head spins concentrically without requiring run-out checks at each machine service. The EP-NMRV050 to EP-NMRV075 range covers the typical torque and speed requirements (output torque 20–160 Nm, output speed 10–50 rpm) for filling heads in dairy, beverage, and sauce filling lines.

▸ Packaging Machinery — Rotary Table and Carousel Drives

Carousel-type packaging machines — where a rotating platform carries multiple product stations past a series of fill, seal, and label heads — require a stable, precisely-centred turntable drive. The output flange provides the large-diameter pilot diameter that centres the turntable plate, while the worm gear self-locking prevents coasting when the machine stops. EP-NMRV063 or EP-NMRV075 at 20:1–40:1 is the most common specification in this application.

▸ Automation — Rotary Indexing and Cam Follower Tables

In precision rotary indexing tables for automatic assembly and inspection machines, a flat, square output flange simplifies the mechanical connection between the gearbox and the indexing plate. A servo motor driving an EP-NMRV with output flange through a close ratio (7.5:1–15:1) gives the combination of positioning speed and positional stiffness needed for workpiece indexing in seconds. The Корея Вечная Сила product range includes matching shaft couplings and motor flange adapters for common servo motor frame sizes.

Design Advantages from an OEM Engineer's Perspective

Согласованные компоненты привода

A complete worm drive system includes three components beyond the gearbox housing. The worm wheel, worm shaft, and output shaft coupling each affect transmission longevity and performance. All three are available from Korea Ever-Power — combined ordering lets us verify dimensional compatibility across the full drive train before shipment.

Часто задаваемые вопросы

What is the difference between the F1 and FA output flange designations?

→ F1 and FA both refer to an output flange configuration but differ in the flange bolt circle diameter and register diameter. F1 uses a smaller bolt circle matched to the standard NMRV series flange template. FA is a larger alternative flange face used when the downstream component requires a wider bolt pattern or larger register. Confirm which flange type your driven component requires against the output flange mounting dimension drawing above before specifying.

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Can the EP-NMRV150 handle 15 kW continuous duty input?

→ The 15 kW figure is the upper bound of the rated power range — it corresponds to a large motor at a low ratio (e.g. 7.5:1) where both input speed and output torque are within the housing's mechanical and thermal limits. At higher ratios and lower output speeds, the thermal power limit is the binding constraint. Confirm your specific combination against the thermal power table for the EP-NMRV150 before specifying 15 kW at ratios above 20:1 in continuous duty.

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What IEC motor flange codes are available for the EP-NMRV063?

→ The EP-NMRV063 accepts IEC flanges 71B14, 80B14, and 80B5 as standard options. The B14 face type (small flange, 4-bolt) is the most common for AC motor coupling. The B5 face type (large flange, 4-bolt through the flange body) is used for larger motor frames where the flange registers into the motor body. Specify the full motor IEC designation on your order to confirm compatibility.

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How is the worm shaft tail extension (VS configuration) used?

→ The VS configuration extends the worm shaft out of both ends of the housing. One end connects to the motor; the other end can accept a hand wheel for manual override, a position sensor or encoder, or a chain sprocket for mechanical synchronisation with another drive. It is frequently used on multi-axis systems where a common driveshaft passes through a series of gearboxes in a tandem arrangement.

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Is the output shaft chromium steel (45#) suitable for a food contact environment?

→ The standard output shaft is chromium steel 45#, which is not stainless. In a food zone, the shaft must be covered by the machine structure or fitted with a guard to prevent direct food contact. For environments where the output shaft is directly exposed to food, water, or cleaning chemicals, specify a stainless steel output shaft at time of order — this is available as a non-standard option on the EP-NMRV series.

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What is the maximum output torque of the EP-NMRV090 at a 50:1 ratio?

→ The maximum output torque for the EP-NMRV090 depends on the rated input power at your operating speed. At a 50:1 ratio with a 0.75 kW motor at 1,400 rpm input, output torque is approximately 380–420 Nm accounting for worm gear efficiency at that ratio. The exact value is confirmed in the EP-NMRV090 performance table for the 50:1 ratio row. We supply per-model performance tables with each order confirmation for customer engineering records.

Что говорят клиенты

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Son Min-jun, Machine Design Engineer, Seoul Packaging OEM (2024)

"Specified EP-NMRV063-F1 for a new carousel packaging machine. The flange register centred the turntable without any shimming — first assembly ran within spec. Model code system is logical once you learn it; ordering was straightforward. 15 machines built with this configuration so far."

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Park Hyun-jae, Procurement Manager, Incheon Food Machinery Co. (Q3 2024)

"We buy EP-NMRV050 and EP-NMRV063 units with F1 output flange in batches of 30–50 per order. Dimensional consistency between batches is good — our assembly line runs without incoming inspection issues. Lead time is 7 days for stock configurations."

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Kim Ji-eun, Automation Engineer, Gyeonggi-do Electronics OEM (2025)

"Using EP-NMRV040-FA with servo motor for a rotary indexing table. The Viton seals are holding up well after 14 months of 2-shift operation. No oil weeping and the output flange run-out is within 0.03 mm after 14 months, which is better than our previous supplier."

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Lim Seung-chul, R&D Engineer, Busan Industrial Equipment OEM (late 2024)

"The model code system made BOM management much cleaner for our product line. Every variant is a unique code rather than a freetext description. DWG drawings came with the samples — integration into our CAD model took one afternoon."

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Choi Yeon-soo, Maintenance Engineer, Daegu Beverage Production Line (Q1 2025)

"First oil change at 500 hours showed clean oil on both EP-NMRV075 units on our filling carousel. The Viton seals make a visible difference — the previous NBR-sealed units from another supplier started to sweat oil at around 400 hours in our high-temperature filling area."

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Lee Jong-kwon, Plant Manager, Ulsan Automation Systems (2024)

"12 units running on automated assembly tables for 16 months. Zero mechanical failures. The dimensional drawing in the documentation was accurate to the actual unit — no surprises at first installation. Good product."