WPWDKO ussikäigu reduktor | Topeltvõlliga võll + vertikaalne väljund

WPWDKO — Double Keyed + Vertical Output Worm Gear Reducer

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Küsi pakkumist

DK + O
Double Key + Vertical

17–3000 Nm
Väljundmoment

10–60:1
Suhtevahemik

HRC 56–62
Worm Shaft Hardness

DK — Double Keyed Both Ends

Both the input worm shaft and the output shaft have keyways cut at both ends. This allows sprockets, chain wheels, belt pulleys, or couplings to be mounted at either end of both shafts — giving maximum flexibility for drive arrangement. Standard WP units are only keyed at the primary drive end of each shaft.

O — Vertical Output Shaft

See ussikäigu reduktor output shaft is oriented vertically (shaft-down as standard, shaft-up on request). Combined with double keying, this enables a vertical chain or belt drive from a horizontal input motor — common in textile loom drives, elevator machinery, and vertical mixer shafts where a sprocket or pulley is needed on the vertical driven shaft.

Combined Advantage

A single WPWDKO ussikäigu reduktor with both double keying and vertical output can drive a vertical chain directly from either side of the output shaft — giving installers freedom to route the drive chain to the left or right of the machine depending on the available clearance.

WPWDKO worm gear reducer parameter table — torque, speed, and power by frame size

Keyway Both Ends — Drive Either Side

Double keyed shafts let the installer mount a sprocket, pulley, or coupling at either end of both the input and output shafts. This gives maximum layout flexibility — the drive can be routed left or right based on available clearance in the machine frame, without needing a different ussikäigu reduktor variant.

Vertical Chain or Belt Drive

The vertical output shaft with keyway allows a chain wheel or belt pulley to be mounted directly on the vertical output shaft — driving equipment below the gearbox without a bevel diversion stage. This single WPWDKO ussikäigu reduktor replaces a horizontal unit plus bevel gearbox in vertical chain configurations.

HRC 56–62 Hardened Worm Shaft

The 20CrMnTi worm shaft is carburised, quenched, and precision ground to HRC 56–62 surface hardness — the same specification used in automotive transmission components. This worm shaft hardness level is what enables the high torque-to-size ratio of the WP-series ussikäigu reduktor across the full frame range.

Self-Locking Vertical Hold

Self-locking at ≥ 20:1 with the output shaft vertical means the driven equipment holds position when the motor stops — no separate brake needed for most vertical machinery positioning applications of this ussikäigu reduktor.

What does "double keyed" mean in the WPWDKO designation?

Double keyed (DK) means that both shafts — input worm shaft and output shaft — have keyways cut at both ends (left end and right end of each shaft). This allows drive components such as sprockets, pulleys, or couplings to be mounted at either end of either shaft. In a standard WP ussikäigu reduktor, keyways are provided only at the primary drive ends. The double keying doubles the mounting options without changing the gear ratio or torque rating.

Can I mount a chain sprocket directly on the vertical output shaft?

Yes — this is one of the primary application scenarios for the WPWDKO ussikäigu reduktor. The vertical output shaft keyway accommodates a standard chain sprocket. The keyway transmits torque to the sprocket; the shaft shoulder and a retaining plate or lock collar prevent axial movement. Provide the sprocket bore diameter, chain pitch, and required sprocket teeth count when contacting Korea Ever-Power for matched component confirmation.

What is the difference between WPWDKO and WPWKO worm gear reducers?

Both have vertical output shafts. The key difference: WPWKO has a single keyed output shaft (one keyway, one end), designed for direct coupling or hollow bore installation. WPWDKO has double keyed shafts at both ends of both shafts — the vertical output can have sprockets or pulleys mounted at either end, and so can the input shaft. Choose WPWDKO when you need to run a vertical chain drive or belt drive from the output shaft, or need dual mounting positions on the input shaft of this ussikäigu reduktor.

Why is the ratio range 10–60:1 rather than the full 10–60:1 of other WP series?

The standard WPWDKO ratio range is 10:1, 15:1, 20:1, 30:1, 40:1, 50:1, and 60:1. The upper limit of 60:1 reflects the practical limit of single-stage worm reduction in this housing size. If a higher ratio is needed, the WPEX double-stage ussikäigu reduktor provides ratios beyond 60:1 in a single housing. Contact Korea Ever-Power if intermediate non-standard ratios are required — availability varies by frame size.

What worm wheel material is used in the WPWDKO?

The WPWDKO ussikäigu reduktor uses a Copper-9-4# alloy worm wheel — a tin-bronze-based copper alloy with 9% tin content, known for good load capacity, wear resistance against hardened steel worm shafts, and acceptable performance at the peripheral sliding speeds typical of this ratio and power range. This is the same alloy family used in standard WP-series units across the frame range.

Is the WPWDKO worm gear reducer suitable for continuous 24-hour operation?

Yes, within the rated power and torque for the selected frame. For continuous duty at rated load, monitor oil sump temperature — maximum 95°C. For applications that approach rated power continuously (e.g. food processing lines, textile plant drives), ensure adequate ambient ventilation around the housing. If ambient temperature is above 40°C or the application runs at high continuous load near the maximum rating, specify synthetic ISO VG 220 lubricant and reduce oil change intervals to 1,500 hours.

What documentation is available for the WPWDKO for OEM qualification?

Korea Ever-Power provides: 2D dimensional drawings (PDF or DWG), ISO 9001:2015 certificate copy, worm shaft material certificate (20CrMnTi with heat treatment data), and bearing brand documentation (C&U or customer-specified brand). For OEM qualification of this ussikäigu reduktor, contact [email protected] with your specific documentation requirements — delivery within 2 business days for standard items.

"WPWDKO120 at 30:1 for a textile loom main shaft drive. Vertical chain from the output shaft — the double keying let us attach the chain wheel to the left side, which was the only clearance available in our loom frame. The worm gear reducer has been running 20 months, three shifts per day, without a single unplanned stop."

Yoon Gi-youngEquipment Engineer, Daegu Textile Machinery Plant

"Used WPWDKO80 on a ceramic forming machine where the vertical chain drive sprocket needed to sit on the right side of the shaft. The double keyed output shaft accepted the sprocket at either end without any modification. Previous supplier's unit was single-keyed and we had to reroute the chain. The WPWDKO worm gear reducer solved it immediately."

Park Chae-linProcess Engineer, Gyeongnam Ceramics Manufacturing Co.

"WPWDKO200 at 20:1 for a chemical mixer vertical shaft drive. Self-locking at 20:1 holds the agitator between batch cycles — the paddles stay submerged without the motor running. HRC 56–62 worm shaft shows no measurable wear after 15 months continuous operation. The cast iron worm gear reducer is exactly the right choice for our plant environment."

Kim Byung-junPlant Engineer, Incheon Chemical Processing Plant

"Food processing line — WPWDKO100 at 40:1 for a vertical mixer drive. The double keyed input shaft let us put a belt pulley on the rear of the input shaft for a secondary slow drive to a minor accessory. One worm gear reducer, two output drives — one from the output shaft, one from the input shaft extension. Clever design."

Lee Sang-hoMachine Design Engineer, Seoul Food Equipment OEM

"WPWDKO70 for a woodworking machine vertical feed drive. Low noise — below 50 dB(A) which is a requirement for our indoor workshop. The double keyed output accepts the feed wheel directly on the vertical shaft with a keyway. The worm gear reducer is compact, easy to install, and has been problem-free for 11 months of daily use."

Choi Jun-seoWorkshop Manager, Gwangju Woodworking Machinery Co.

"Korea Ever-Power delivered dimensional drawings and material certificates within 24 hours of our enquiry. The WPWDKO worm gear reducer dimensions matched the drawings exactly — no fit surprises on installation. The 20CrMnTi worm shaft material certificate was accepted by our OEM quality system without question. Good service from first contact to delivery."

Han Ji-wookQuality Engineer, Seongnam Industrial Machinery OEM

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