WPDKS Series Worm Gearbox

WPDKS Series Worm Gearbox

The WPDKS Series is an EVER-POWER single stage worm gearbox manufactured in Hangzhou and supplied factory-direct from Singapore. Gear ratios 1:5 – 1:60, max output torque 2,856 N·m, efficiency 60-82%. Input: IEC hollow bore. Output: Hollow bore + flange. Mounting: Flange + foot mounted. Centre distance 40-250 mm. 20CrMnTi worm hardened to HRC 58-62. ISO 9001:2015 and CE certified. MOQ 10 pcs. Sample in 15-25 days. 24 h quote response.

Artikelnummer: WPDKS Kategorie: Schlagwörter: , , , ,

WPDKS Series Worm Gearbox
ISO 9001:2015
CE

Input
IEC hollow bore
B5 / B14 motor flange

Output
Hollow bore + flange
H7 tolerance

Ratio
1:5 – 1:60
Single stage

Max. Drehmoment
2,856 N·m
Size 250

Montage
Flange + foot mounted
40–250 mm

⚙
1:5 – 1:60
Übersetzungsverhältnis
⚡
60–82%
Effizienz
🔩
2,856 N·m
Max Output Torque
🛡
HRC 58–62
Gear Hardness
📐
40–250 mm
Centre Distance

01
Product Overview
WPDKS Series Worm Gearbox — Technical Overview

Der WPDKS Series Worm Gearbox pairs an IEC hollow bore motor flange input with a combined hollow bore and output flange at the output. The unit accepts the IEC motor directly at the input, drives the machine shaft through the hollow bore, and also provides an output flange face for a secondary face-mounted component.

Split D-type HT250 cast iron housing with foot support. 20CrMnTi worm shaft at HRC 58–62, ZCuSn10Pb1 bronze wheel, 60–82% efficiency. Hollow output bore to H7 tolerance. Leak-tested to 2.5 bar.

Factory-direct from Singapore. Request a quotation or browse the WP Series.

WPDKS worm gear reducer internal structure and component diagram

WP Series Worm Gear Reducer — Internal Structure and Main Components

02
Shaft Direction
WPDKS Series — Input and Output Shaft Orientations
Multiple shaft direction positions are available. Specify the position code when ordering. Oil fill volume changes with non-standard orientations — EVER-POWER confirms the required adjustment.

WPDKS worm gear reducer shaft direction diagram — input and output shaft orientation positions

WPDKS Series — Shaft Direction Diagram · A: input below · S: input above · O: output upward · X: output downward · T: input upward · V: input downward

Code Input Shaft Position Output Shaft Position Typical Use
A Horizontal — below centre (standard) Horizontal Horizontal conveyor drives, standard floor-mounted machines
S Horizontal — above centre Horizontal Overhead mounting, inverted or top-fed drives
O Horizontal Vertical — upward Lifting columns, vertical screw drives, hoist applications
X Horizontal Vertical — downward Gravity-assisted feed, downward discharge drives
T Vertical — upward Horizontal Vertical input from above, tower or mast drives
V Vertical — downward Horizontal Floor-level motor with downward vertical input shaft
ℹ IEC Input + Hollow Bore + Output Flange — WPDKS Series
The WPDKS is the most feature-complete single-stage WP variant: IEC hollow bore input (no coupling), hollow bore output (direct shaft mounting), and an output flange face (secondary component mounting). The foot-mounted base provides additional structural stability under combined radial loading from the hollow bore and flange.

03
Dimensional Drawing
WPDKS Series — Overall Dimensions and Mounting Geometry
Full dimensional data covering 40–250 mm centre distance range. 2D DXF and PDF drawings available within 24 hours at no charge.

WPDKS worm gear reducer dimensional drawing — overall dimensions mounting hole pattern and shaft sizes

WPDKS Series — Structural Dimensional Drawing · All dimensions in mm · Sizes 40–250 mm · DXF and PDF on request within 24 hours

Dimension Symbol Reference
A / AB Overall length / length excluding shaft extension B / BB Overall height / base plate height
CC Output shaft centreline height above base HS / U Input shaft diameter / usable shaft length
T x V Input shaft key width x key depth LS / S Output shaft usable length / diameter
W x Y Output shaft key width x key depth E / F / G / M / N Foot mounting hole positions and pitch

04
Spezifikationen
WPDKS Series — Full Parameter Table
Input speed: 1,500 r/min · Housing: HT250 cast iron · Seal: NAK / SKF · Lubricant: ISO VG220 · MOQ: 10 pcs · Port: Shanghai / Ningbo

WPDKS worm gear reducer specification table — input power and output torque for all sizes and ratios (brochure p.13)

WPDKS Series — Parameter Table (brochure p.13) · Columns: Size · Ratio · A/AB/B/BB/CC/H/HL/M/N/E/F/G/Z · Input shaft HS/U/T×V · Output shaft LS/S/W×Y · Weight (kg) · Oil (L)

Größe Ratio Max Input (kW) Max Output Torque Weight (kg) Oil (L)
WPDKS Series · Split cast iron (D-type) · Flange + foot mounted · 20CrMnTi Worm · ZCuSn10Pb1 Bronze Wheel · Input: 1,500 r/min
40 1/5–1/60 0.48

26 N·m

 5 0.13
50 1/5–1/60 0.80

43 N·m

 8 0.17
60 1/5–1/60 1.25

70 N·m

 12 0.22
70 1/10–1/60 1.60

113 N·m

 17 0.60
80 1/10–1/60 2.20

163 N·m

 23 0.85
100 1/10–1/60 3.60

291 N·m

 38 1.50
120 1/10–1/60 5.20

413 N·m

 62 3.20
135 1/10–1/60 9.75

707 N·m

 85 3.60
147 1/20–1/60 8.50

848 N·m

 100 3.70
155 1/20–1/60 12.80

848 N·m

 118 3.80
175 1/20–1/60 17.30

1,221 N·m

 155 4.60
200 1/20–1/60 22.60

1,782 N·m

 220 6.50
250 1/20–1/60 27.40

2,856 N·m

 365 9.00

* Peak output torque at the highest-torque ratio per size · Full ratio-by-ratio data available — request the complete data sheet

05
Material and Construction
Engineering Specifications — WPDKS Series

Worm Shaft
Primary drive element
Alloy grade20CrMnTi
Surface hardnessHRC 58–62
Heat treatmentCase carburising + quenching
Surface finishGround, Ra ≤ 0.8 μm
Shaft core40Cr steel
Worm Wheel
Output driven element
Alloy gradeZCuSn10Pb1 tin-bronze
Tooth formZI involute profile
Bearing brandSKF / C&U / HRB
Shaft sealNAK / SKF lip seal
Leak test2.5 bar · 100% of units
Housing and Assembly
Structure and sealing
Housing gradeHT250 grey cast iron
Housing formSplit cast iron (D-type)
SchmiermittelISO VG220 gear oil
InputIEC hollow bore
OutputHollow bore + flange

06
Selection Correction Factors
Power Calculation and Correction Coefficient Tables
Apply correction factors a₁ and a₂ to the rated torque before selecting a gearbox size. Use Table 3 to verify motor input power.

Table 1
Ambient Temperature Correction Coefficient a₁
Ambient Temperature (°C) 10 – 25 26 – 30 31 – 40 41 – 50
a₁ 1.0 1.1 1.0 1.6

Table 2
Duty Condition Correction Coefficient a₂
Operating Condition Daily Running Hours (h)
≤ 2 h > 2 – 10 h > 10 – 24 h
Smooth running 0.8 1.0 1.2
Moderate shock load 1.0 1.2 1.4
Heavy shock load 1.25 1.5 1.75
ℹ If the gearbox starts, reverses, or changes direction 12 or more times per hour during operation, multiply the table value by an additional factor of 1.2.

Table 3
Input Shaft Power Calculation and Efficiency Coefficient u
Input Power Formula
P = T × n₂ ÷ (9550 × u)
P — Input shaft power (kW)
T — Corrected torque value (N·m)
n₂ — Output shaft speed (r/min)
u — Transmission efficiency (from table below)

Ratio 1:10 1:15 1:20 1:25 1:30 1:40 1:50 1:60
Efficiency u 0.76–0.90 0.75–0.86 0.74–0.84 0.72–0.82 0.68–0.70 0.65–0.75 0.62–0.72 0.60–0.70

07
Schmierung
Recommended Lubricants by Speed and Temperature
Select oil grade based on worm shaft speed and mounting orientation. Change after the first 100 operating hours, then every 2,500 hours.

Oil Grade Selection by Worm Shaft Speed and Operating Position
Worm Shaft Speed (r/min) Oil Type Upper Worm / Vertical Lower Output Shaft Vertical
Over Up to
1,000 3,000 Synthetic oils PG460 PG220
— 1,000 PG460
2,000 3,000 Mineral oils ISO VG460 ISO VG200
750 2,000 ISO VG320
250 750 ISO VG460
— 250 Mineral oils ISO VG660 ISO VG660

International Brand Equivalents by Ambient Temperature
Ambient Temp. Oil Type Esso Texaco Mobil Hülse AGMA
15–60°C
−9 to −16°C		 Mineral oils Spartan EP220 Regal Oil R&D 320 DTE LIL BB Shell Omala Oil 220 5
Compounded oils Sparan EP320 631-Honor Cylinder Oil Mobil 600W Cylinder Oil Shell Omala Oil 320 7
Extreme pressure Spartan EP460 Meropa 460 Mobil Gears 634 Shell Omala Oil 460 7EP
50–125°C
10–52°C		 Mineral oils Spartan EP320 Regal Oil 320 DTE OIL AA Shell Omala Oil 320 6
Compounded oils Spartan EP460 642-650T Cylinder Oil Mobil 600W Super Cylinder Oil Shell Omala Oil 460 8
Extreme pressure Spartan EP680 Meropa 680 Mobil Gears 636 Shell Omala Oil 660 8EP
ℹ Drain and flush the unit after the first 100 operating hours. Thereafter, change oil every 2,500 hours or 12 months, whichever comes first. Use synthetic oil for continuous 24-hour duty.

08
Fehlerdiagnose
Troubleshooting Guide — Common Faults and Remedies
Identify the fault symptom, locate the probable cause, and apply the recommended corrective action before returning the unit to service.

Fault Symptom Probable Cause Recommended Action
Overheating Motor, gearbox, or driven machine misaligned at coupling Re-align all three shafts to be co-axial. Check coupling and re-torque fasteners.
Overload running Reduce load to within rated torque. Apply correction factors a₁ and a₂.
Lip seal worn or excessively tight Apply grease at the seal lips; replace seal if worn.
Incorrect oil level or degraded lubricant Top up or drain and refill to the correct level. Use the grade specified in Table 4.
Vibration Motor, gearbox, or driven machine poorly fixed or misaligned Inspect and re-tighten all mounting fasteners. Re-align coupling.
Worm wheel tooth surface worn or damaged Replace the worm wheel assembly.
Bearing worn Replace bearing. Check shaft for scoring before refitting.
Abnormal Noise Bearing worn or clearance too large Replace bearing and adjust preload.
Poor worm wheel tooth mesh Check and adjust tooth contact; replace worm wheel pair if necessary.
Insufficient lubricant Top up oil to the correct level.
Foreign matter in housing Drain oil completely, flush housing, remove debris, refill with fresh oil.
Oil Leakage Lip seal damaged Replace lip seal.
Shaft journal surface worn at seal contact Replace input or output shaft. Fit new seal to match.
Oil overfilled Drain to the correct level per the oil gauge indicator.
Drain plug loose or oil gauge cracked Re-seal and tighten drain plug. Replace oil gauge if cracked.
Rapid Worm Wheel Wear Overload running Reduce load; check application duty factors against rated capacity.
Wrong lubricant grade Drain and refill with the correct grade from Table 4.
Insufficient lubricant Top up to the correct level at the oil gauge.
Oil change interval exceeded; lubricant degraded Drain, flush, and refill per the maintenance schedule.
Operating temperature too high Resolve overheating fault first (see above), then reduce ambient temperature or improve ventilation.

06
Anwendungen
WPDKS Series — Industry Use Cases

EVER-POWER worm gearbox manufacturing facility Hangzhou — CNC gear hobbing and precision assembly

EVER-POWER Manufacturing
CNC gear hobbing, heat treatment, and 100% pressure-testing in Hangzhou. Every WPDKS unit is inspected and pre-filled before dispatch.
WPDKS worm gear reducer installed in industrial drive application

WPDKS Series in Service
The WPDKS worm gear reducer serves conveyor, mixer, packaging, and agricultural drives across 40–250 mm centre distance.
⚙
Multi-Function Drive Assemblies

WPDKS 60–200
IEC + hollow + flange

Complex automation assemblies requiring direct IEC motor coupling, direct machine shaft engagement via hollow bore, and a secondary output flange for a brake or encoder, all from one unit.

🚧
Conveyor Drives with Encoder and Motor

WPDKS 80–250
Full direct-drive

Belt conveyors where the IEC motor flanges directly onto the gearbox input, the head shaft engages the hollow output bore, and a shaft encoder mounts on the output flange for speed feedback.

🏭
Reactor and Mixer Drives

WPDKS 120–250
Up to 2,856 N·m

High-torque mixer drives requiring a directly-coupled IEC motor, a coupling-free agitator shaft connection, and a secondary face-mounted output for a mechanical seal or coupling.

🌾
Agricultural Equipment Drives

WPDKS 40–135
Hollow bore + foot mount

Feed mixer and auger drives where the IEC motor couples directly at the input, the auger shaft engages the hollow output bore, and the foot mounting provides stability in high-vibration field conditions.

07
Manufacturer
EVER-POWER PTE. LTD. — Factory Direct from Singapore
Singapore-registered. Hangzhou manufacturing. No intermediaries — factory pricing and ISO-certified quality on every order.

EVER-POWER worm gearbox factory Hangzhou — production floor

EVER-POWER Production Base · Hangzhou, China · 3 Plants · CNC Gear Hobbing · Heat Treatment · 100% Pressure-Test

EVER-POWER PTE. LTD.
Singapore Registered · Hangzhou Manufacturing · 20+ Years Experience

ISO 9001:2015
CE Certified
Triple ISO

🏭
3 Plants
Manufacturing Facilities
CNC gear hobbing, case-hardening, assembly, and 100% pressure-test in Hangzhou.
🔬
HRC 58–62
Worm Shaft Hardness
Case carburising and quenching on every shaft. Ra ≤ 0.8 μm ground finish. Hardness verified by Rockwell test.
📦
MOQ 10 pcs
OEM from Small Batches
Custom ratios, shaft sizes, keyways. Sample 15–25 days; production 30–45 days.
🌎
50+ Countries
Global Export
EU · US · UK · AU · NL · BR · CA · KR. DDP and DAP available.
📋
Triple ISO
Certified Quality
ISO 9001:2015 · ISO 14001 · ISO 45001. CE marking on request.
⚡
24 h
Quote Response
Send size, ratio, quantity, application. Full quote + drawing within 24 hours.

FAQ
Frequently Asked Questions — WPDKS Series Worm Gearbox
How does the WPDKS differ from the WPDKA?+
The WPDKS adds an output flange face and a foot mounting base to the WPDKA hollow bore output. The WPDKA has hollow bore output only. The WPDKS is chosen when a secondary face-mounted output and additional structural support are both required.
Does the WPDKS self-lock?+
Yes, at ratios of 1:30 and above.
What bore sizes are available?+
Standard bore sizes per centre distance listed in the dimensional drawing. Non-standard bores and flanges available as OEM options.
What is the MOQ and lead time?+
MOQ 10 pcs, 30–45 days. Samples 15–25 days.
Are drawings available?+
2D DXF/PDF for all WPDKS sizes within 24 hours.

Request a Quote — WPDKS Series Worm Gearbox
Provide your required centre distance (40–250 mm), gear ratio (1:5 – 1:60), shaft direction, mounting type, and quantity. Full quotation with dimensional drawing returned within 24 hours.

MOQ 10 pcs

Sample 15–25 days

Quote in 24 hours

DDP / DAP available

Request a Quote →
Email Us Directly

📞 +65 8866 2737 · Singapore

Getriebereduzierer

Dank erstklassiger Fertigungskapazitäten, hochwertiger Materiallieferanten und eines hochmodernen Qualitätsprozesses kann EPT ein Höchstmaß an Präzision, Haltbarkeit und Beständigkeit bieten. Die EPT-Planetengetriebe sind für fortschrittliche Hochgeschwindigkeitsanwendungen mit geringem Verdrehspiel konzipiert und gebaut. Die EPT-Fertigungsverfahren ermöglichen es uns, außergewöhnliche Stoßbelastungen und verschiedene Montageoptionen anzubieten.

Oberflächenbehandlung

Glühen, natürliche Kanonisierung, Wärmebehandlung, Polieren, Vernickelung, Verchromung, Verzinkung, gelbe Passivierung, goldene Passivierung, satinierte, schwarz lackierte Oberfläche usw.

Verfahren

CNC-Bearbeitung, Stanzen, Drehen, Fräsen, Bohren, Schleifen, Räumen, Schweißen und Montage

QC & Zertifikat

Selbstkontrolle der Techniker in der Produktion, Endkontrolle vor der Verpackung durch einen professionellen Qualitätsinspektor
ISO9001:2008, ISO14001:2001, ISO/TS 16949:2009

Paket & Vorlaufzeit

Größe: Zeichnungen
Holzkiste/Container und Palette, oder nach kundenspezifischen Spezifikationen.
15-25 Tage Muster. 30-45 Tage offcial Bestellung
Hafen: Shanghai/Ningbo Hafen

FAQ

F: Sind Sie ein Handelsunternehmen oder ein Hersteller?
A: Unsere Gruppe besteht aus 3 Fabriken und 2 ausländischen Vertriebsgesellschaften.

F: Bieten Sie Muster an? Ist das kostenlos oder extra?
A: Ja, wir können das Muster kostenlos anbieten, zahlen aber nicht die Frachtkosten.

Q: Wie lang ist Ihre Lieferzeit? Wie lauten Ihre Zahlungsbedingungen?
A: In der Regel sind es 40-45 Tage. Die Zeit kann je nach Produkt und dem Grad der Anpassung variieren. Für Standardprodukte, ist die Zahlung: 30% T/T im Voraus, Restbetrag vor Versand.

Q: Was ist die genaue MOQ oder Preis für Ihr Produkt?
A: Als OEM-Unternehmen können wir unsere Produkte an eine Vielzahl von Bedürfnissen anpassen, daher können MOQ und Preis je nach Größe, Material und weiteren Spezifikationen stark variieren; zum Beispiel haben teure Produkte oder Standardprodukte normalerweise ein niedrigeres MOQ. Bitte kontaktieren Sie uns mit allen relevanten Details, um ein möglichst genaues Angebot zu erhalten.

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