Beskrivning

EVER POWER · UNITED KINGDOM

WGP Drum Shape Gear Coupling
with Brake Wheel — High-Torque Industrial Drive Solution

Engineered for the most demanding power transmission environments, the WGP series drum shape gear coupling with integrated brake wheel delivers rated torques from 710 KN·m to 160,000 KN·m. Trusted across UK heavy industry, steel mills, port cranes, and mining operations, this coupling redefines reliability in continuous-duty applications.

✉ Get a Quote Now

What Is a Drum Shape Gear Coupling with Brake Wheel?

WGP Drum Shape Gear Coupling with Brake Wheel - Side View The WGP series drum shape gear coupling is a precision-engineered flexible coupling that integrates a crowned-tooth internal gear sleeve with an external hub and a dedicated brake wheel — all within a compact, self-contained assembly. Unlike standard gear couplings, the crowned tooth profile on every external gear hub allows angular misalignment up to 1.5° per joint and axial displacement without transmitting bending moments to connected machinery. This fundamentally protects bearings, seals, and shafts from secondary stress loadings that would otherwise accelerate wear and cause premature failure in demanding drive systems.

The integrated brake wheel — cast or fabricated as part of the outer sleeve half — allows a drum brake or band brake to act directly on the coupling body itself. This eliminates the need for a separate braking disc or shaft-mounted brake drum, saving axial space, reducing total drivetrain weight, and simplifying installation significantly. For UK crane manufacturers, mineral extraction operations, and heavy lifting equipment builders, this integrated design is often the decisive factor in specifying WGP couplings over conventional alternatives.

Engineering Principle, Materials & Application Scenarios

⚙

Operating Principle

Torque is transmitted from the inner hub through meshed crowned teeth into the outer sleeve. The barrel-shaped (drum) tooth flank geometry allows the teeth to rock slightly as shafts move out of perfect alignment. This rolling contact distributes load across a wider tooth face area and keeps tooth-to-tooth contact stress within acceptable limits even when misalignment reaches its rated maximum. The brake wheel — formed as an integral flange on the outer sleeve — rotates with the coupling and provides a clean, concentric braking surface for external drum or band brake systems.

🔩

Materials & Surface Treatment

Hubs and sleeves are manufactured from 42CrMo or 40Cr alloy steel, quenched and tempered to achieve core hardness of 217–255 HBW. Gear tooth flanks are induction-hardened to 50–58 HRC to resist fatigue spalling under high-cycle loading. The brake wheel friction surface is finish-machined to Ra 1.6 µm for uniform contact with brake linings. All external surfaces receive a phosphate primer plus industrial epoxy topcoat rated for salt-spray resistance exceeding 500 hours — an important requirement for UK coastal port and offshore-support applications.

🏭

Typical Application Scenarios

WGP drum shape gear couplings with brake wheels are specified extensively across overhead bridge cranes and gantry cranes, quayside port cranes and ship-to-shore equipment, mine winders and conveyor drives, steel mill rolling drives, cement plant raw mill drives, paper mill press sections, and large pump or compressor drives where emergency shutdown braking is required. Any drivetrain combining high torque, moderate speed, shaft misalignment, and integrated braking will benefit from this design approach over a separate coupling-plus-brake-drum arrangement.

Seven Reasons Engineers Choose WGP Drum Shape Gear Couplings

◈

Extreme Torque Density

Rated torque range of 710 KN·m to 160,000 KN·m within a compact envelope, enabling direct replacement of oversized or heavier alternatives without drivetrain redesign.

◈

Crowned-Tooth Misalignment Tolerance

Up to 1.5° angular misalignment per joint accommodated without bearing overload. Shaft settlement, thermal expansion, and structural flexing are absorbed without coupling damage.

◈

Integrated Braking Surface

The concentric brake wheel eliminates a separate brake drum assembly, reducing total component count, minimising axial drivetrain length, and improving maintenance access considerably.

◈

Long Service Intervals

Lubricated grease-packed cavities with re-greasing ports allow routine maintenance without disassembly. Alloy-steel gear teeth tolerate years of continuous operation before refurbishment is required.

◈

Wide Speed Range

Limited rotational speeds from 1,200 RPM for large WGP14 units up to 4,000 RPM for compact WGP1 units, covering a broad spectrum of drive applications from slow hoisting to medium-speed pump drives.

◈

Drop-In Retrofit Compatibility

Standard WGP bore and bolt patterns align with ISO and DIN shaft specifications common across UK and European industrial installations, minimising retrofit engineering costs and delivery schedules.

◈

Full Customisation Available

Non-standard bore diameters, keyway geometries, brake wheel diameters, and surface coatings are available from Ever Power. Custom coupling halves for unique shaft layouts are quoted and manufactured to order.

Technical Specification — Design Drawings

WGP Drum Shape Gear Coupling Technical Drawing 1 - Dimensional Specification

WGP Drum Shape Gear Coupling Technical Drawing 2 - Brake Wheel Dimensions

WGP1 – WGP8 Performance Parameters

Type	Rated Torque KN·m	Limited Speed R/min	Shaft Hole dia. d1,d2,dz (mm)	Length Y (mm)	Length J1, Z1 (mm)	D0	D	D2	D4	B	F	N**	C*	C1*	C2*	Weight Kg	Rotate Inertia Kg·m²	Lubricating Grease Kg
WGP1	710	4000	12,14	32	—	315	122	98	60	58	30	38	30	—	—	5.62	0.0078	0.11
			16,18,19	42	—								20	—	—
			20,22,24	52	—								10	—	—
			25,28	62	44								3	19	18
			30,32,35,38	82	60									23	12
			40,42	112	84									29	12
WGP2	1250	4000	22,24	52	—	315	150	118	77	68	30	38	20	—	—	9.62	0.022	0.12
			25,28	62	—								10	—	—
			30,32,35,38	82	60								3	23	16
			40,42,45,48,50,55,56	112	84								3	29	16
WGP3	2500	3550	22,24	52	—	355	170	140	90	80	30	49	33	—	—	16.6	0.047	0.2
			25,28	62	—								23	—	—
			30,32,35,38	82	60								3	23	25
			40,42,45,48,50,55,56	112	84									29	16
			60,63	142	107									36	—
WGP4	4500	2500	30,32,35,38	82	—	400/450/500	200	160	112	90	30	45	13	—	—	25.3	0.098	0.28
			40,42,45,48,50,55,56	112	84								3	29	—
			60,63,65,70,71,75	142	107									36	17
			80	172	132									41	—
WGP5	7100	2500	30,32,35,38	82	—	400/450/500	225	180	128	100	30	45	23	—	—	34.7	0.174	0.45
			40,42,45,48,50,55,56	112	84								3	29	—
			60,63,65,70,71,75	142	107									36	19
			80,85,90	172	132									41	—
WGP6	10000	2000	32,35,38	82	—	450/500/560/630	245	200	145	112	30	44	35	—	—	51.3	0.293	0.65
			40,42,45,48,50,55,56	112	—								5	—	—
			60,63,65,70	142	107									38	—
			71,75	—	—									43	20
			80,85,90,95	172	132									48	—
WGP7	14000	1700	32,35,38	82	—	450/500/560/710	272	230	160	122	30	44	45	—	—	68.0	0.530	0.80
			40,42,45,48,50,55,56	112	—								5	15	—
			60,63,65,70,71,75	142	107									38	—
			80,85,90,95	172	132									43	20
WGP8	20000	1700	55,56	112	—	500/560/630/710	290	245	176	136	30	44	29	—	—	79	0.71	0.95
			60,63,65,70,71,75	142	107								5	38	34
			80,85,90,95	172	132								5	43	20

WGP9 – WGP14 Performance Parameters

Type	Rated Torque KN·m	Limited Speed R/min	Shaft Hole dia. (mm)	Length Y (mm)	Length J1,Z1 (mm)	D0	D	D2	D4	B	F	N**	C*	C1*	C2*	Weight Kg	Rotate Inertia Kg·m²	Lubricating Grease Kg
WGP9	25000	1600	65,70,71,75	142	107	560/630/710/800	315	265	190	140	30	58	38	38	—	106.5	1.05	1.30
			80,85,90,95	172	132								5	43	—
			100,110,120,125	212	167									48	28
			130,140	252	202									53	—
WGP10	40000	1600	75	142	—	630/710/800	355	300	225	165	30	58	28	—	—	159.0	1.74	1.60
			80,85,90,95	172	132								5	43	38
			100,110,120,125	212	167									48	—
			130,140,150	252	202									53	28
			160	302	242									63	—
WGP11	56000	1400	85,90,95	172	—	710/800/900	412	345	256	180	40	58	15	—	—	215.0	3.67	2.00
			100,110,120,125	212	167								8	51	—
			130,140,150	252	202									56	32
			160,170,180	302	242									66	—
WGP12	80000	1400	120,125	212	167	710/800/900	440	375	288	207	40	58	51	45	—	303.0	6.40	3.40
			130,140,150	252	202								8	56	—
			160,170,180	302	242									66	32
			190,200	352	282									76	—
WGP13	112000	1400	140,150	252	202	800/900	490	425	320	235	50	58	56	38	—	291.0	10.45	4.40
			160,170,180	302	242								8	66	32
			190,200,220	352	282									76	—
			—	—	—									—	—
WGP14	160000	1200	160,170,180	302	242	900/1000	545	462	362	265	50	65	68	32	—	523.0	17.48	6.60
			190,200,220	352	282								10	78	—
			240,250,260	410	330								10	—	10

Brake Wheel (DO Brake Wheel Diameter) Parameters

Note 1: Weight and moment of inertia are approximations calculated by the biggest axis hole length of Y type, not calculated for the brake wheel. Note 2: The C, C1, C2 value of different brake wheels is the value in table added with K/2 (K value per following table). Note 3: N=S–K/2; value in table is max D0 calculated; S, K see the following table.

DO Brake Wheel Diameter D	T	K	S	D5MAX — I	D5MAX — II	Weight Kg — I	Weight Kg — II	Rotate Inertia Kg·m² — I	Rotate Inertia Kg·m² — II
315	15	10	42	180	155	8.5	6.7	0.116	0.110
355	15	10	54	200	175	11.4	9.9	0.192	0.178
400	15	14	54	255	230	15.2	12.4	0.320	0.287
450	15	16	54	305	280	19.7	15.6	0.550	0.462
500	15	18	54	325	295	25.0	20.0	0.830	0.712
560	15	18	54	350	320	30.7	25.6	1.280	1.127
630	15	20	54	400	360	38.8	33.0	2.060	1.826
710	15	20	54	480	450	46.5	39.4	3.320	2.912
800	15	24	70	540	500	67.8	52.7	5.870	4.810
900	15	24	70	600	560	86.6	70.3	9.300	7.852
1000	20	30	80	620	560	128.8	115.1	17.400	15.65

Ever Power — Manufacturing Capability & Custom Coupling Solutions

Precision Manufacturing at Scale

Ever Power Gear Coupling Factory Workshop - UK Supply Ever Power operates dedicated gear coupling production lines equipped with CNC gear hobbing machines, CNC turning centres, coordinate measuring machines (CMM), and gear inspection equipment capable of verifying tooth profile accuracy to DIN 3960 Class 6 and above. Our heat treatment department handles carburising, quenching, and induction hardening in-house, ensuring full traceability from raw billet to finished coupling. This level of vertical integration allows us to hold tolerances that generic suppliers cannot achieve and to deliver consistent results lot after lot.

Our customisation capability is a core competency, not an afterthought. UK customers regularly order WGP drum shape gear couplings with non-standard bore diameters, metric or imperial keyways, special brake wheel diameters not listed in our standard range (from 315 mm to 1,000 mm and beyond), split-sleeve designs for confined-space installation, stainless steel sleeve options for corrosive environments, and modified flange bolt patterns for OEM integration. Our applications team provides design validation and 3D CAD data for every custom order as standard.

Get a Quote →

Customer Success — WGP Drum Shape Gear Couplings in Action

Port of Felixstowe — Ship-to-Shore Crane Retrofit, UK
Port & Logistics

WGP Drum Shape Gear Coupling with Brake Wheel - Product View A leading container terminal operator at the Port of Felixstowe was experiencing accelerated bearing wear on three ship-to-shore cranes. Vibration analysis traced the root cause to misalignment-induced bending moments being transmitted through the existing rigid couplings into the slew motor bearings. Our engineering team specified WGP10 drum shape gear couplings with 630 mm brake wheels as direct replacements. Angular misalignment capacity of the crowned-tooth design absorbed the residual structural flex in the crane booms without generating lateral bearing loads. After 14 months of continuous operation — including handling peak-season throughput of over 4,000 TEU moves per day — zero bearing failures have been recorded on the retrofitted units. Planned bearing maintenance intervals extended from 8 months to 24 months, delivering substantial savings in parts and planned downtime.

“The WGP coupling solved a problem we’d been chasing for three years. The integrated brake wheel also freed up roughly 200 mm of axial space that we used to install improved cable management. Highly recommended supplier for critical crane drivetrains.” — Mechanical Engineering Manager, Container Terminal Operations, Felixstowe

★★★★★

“We run WGP7 couplings on our mine winder drives at Kellingley. Rated torque performance at 14,000 KN·m is exactly as specified. Re-greasing takes under an hour and the units just run. Three years in, no issues.”

— Drive Systems Engineer
Mining Operations, Yorkshire, UK

★★★★★

“Ever Power custom-designed a WGP12 with an 850 mm brake wheel for our rolling mill rebuild. The 3D CAD files and dimensional verification report they supplied made our site installation completely straightforward. Lead time was 8 weeks from order to dock.”

— Maintenance Director
Long Products Steel Mill, South Wales, UK

★★★★★

“We used to source drum shape gear couplings from a German manufacturer at significant cost. Switching to Ever Power WGP couplings reduced our procurement cost per unit by over 30% with no reduction in quality or documentation. The team responds quickly and understands UK engineering standards.”

— Procurement Manager
Industrial Crane OEM, West Midlands, UK

Frequently Asked Questions — WGP Drum Shape Gear Coupling with Brake Wheel

What is the price or cost of a WGP drum shape gear coupling with brake wheel, and where can I get a quote for UK delivery?

Pricing for WGP drum shape gear couplings with brake wheels depends on the specific model (WGP1 through WGP14), bore configuration, brake wheel diameter, and any customisation requirements. For UK deliveries, we offer competitive pricing with CIF or DAP Incoterms to major UK ports and logistics hubs. To receive a detailed quotation tailored to your application, please contact us at [email protected] with your torque requirement, shaft diameters, and required brake wheel size. Our team typically responds within one working day.

How do I select the right WGP drum shape gear coupling size for my UK crane or mining drive application?

Selection starts with the calculated design torque, which is the nominal transmitted torque multiplied by a service factor (typically 1.5 to 2.5 depending on drive type and shock loading). Match this design torque to the rated torque (KN·m) column in the specification table to identify the appropriate WGP model. Then confirm the required shaft bore diameters, shaft length Y or J1/Z1, and select the brake wheel diameter from the separate brake wheel table based on your braking torque requirement. For crane and mining applications in the UK, we recommend sharing your motor data sheet and load cycle information so our engineers can validate the selection before ordering.

Which industries in the UK most commonly use drum shape gear couplings with integrated brake wheels, and why?

In the UK, WGP drum shape gear couplings with integrated brake wheels are most widely used in port and container terminal crane drivetrains (particularly in locations like Felixstowe, Southampton, and Tilbury), underground and surface mine winder drives in Yorkshire, the Midlands, and Scotland, steel plant rolling mill drives in South Wales and the North East, large cement mill drives, and heavy aggregate conveyor drive stations. The integrated brake wheel is the deciding factor in all these applications because it eliminates a separate shaft-mounted brake drum, reduces total drivetrain length, and simplifies both installation and brake adjustment on plant where access space is limited.

Can Ever Power supply a custom WGP drum shape gear coupling with a non-standard bore or brake wheel diameter for my specific UK project requirements?

Yes. Custom WGP drum shape gear couplings with non-standard bore diameters (both metric and imperial), non-standard keyway profiles, and brake wheel diameters outside the standard range are a standard part of our manufacturing capability. We have supplied custom units to UK OEMs with brake wheel diameters between 315 mm and 1,000 mm, modified bolt circle diameters, and special surface coatings for harsh environments. Please contact [email protected] with your drawings or dimensional requirements and we will confirm feasibility and provide a quotation within two working days.

What lubricating grease specification should I use, and how often does a WGP drum shape gear coupling need re-greasing in a continuous industrial duty cycle?

WGP drum shape gear couplings are designed for use with high-viscosity EP gear coupling grease, typically NLGI Grade 1 or Grade 2 meeting MIL-G-10924 or equivalent specification. In continuous industrial duty with ambient temperatures between 0°C and 40°C, re-greasing every 3,000 to 4,000 operating hours is generally adequate. High-temperature environments, heavy shock loading, or vertical shaft installations may require shorter intervals. Each coupling size has a specified grease fill quantity listed in the technical table; these values should be adhered to precisely — overfilling can cause seal leakage and under-filling accelerates tooth wear. Our maintenance guide is available on request with every order.

Where can I find a reliable supplier of WGP drum shape gear couplings with brake wheels in the UK, and what lead times should I expect for standard and custom orders?

Ever Power supplies WGP drum shape gear couplings with brake wheels directly to UK engineering companies, OEMs, and maintenance contractors from our manufacturing facility, with shipping handled via international freight to UK ports including Felixstowe, Southampton, and London Gateway. Standard catalogue sizes (WGP1 through WGP14 with standard brake wheel diameters) typically ship within 4 to 6 weeks from order confirmation. Custom bore configurations or non-standard brake wheel diameters generally require 6 to 10 weeks. Rush production is available for breakdown replacements — contact [email protected] to discuss your timeline. We can hold stock of certain high-demand sizes for repeat UK customers.

Ready to Specify a WGP Drum Shape Gear Coupling for Your UK Project?

Share your application data — torque, speed, shaft sizes, and brake requirement — and our engineers will recommend the correct WGP model, validate the selection, and provide a competitive price with UK delivery terms.

✉ Email [email protected]

edit by gzl

WGP with the brake wheel drum shape gear coupling

Beskrivning

WGP Drum Shape Gear Coupling
with Brake Wheel — High-Torque Industrial Drive Solution

What Is a Drum Shape Gear Coupling with Brake Wheel?