GIICLZ Drum Shape Gear Coupling
Moveable rigid coupling 0.4–4500 KN·m, 25 sizes, crowned tooth, for mining/steel/cement/power drives in Australia. Intermediate shaft type per JB/T8854.2. Custom bore available.
GIICLZ Drum Shape Gear Coupling — Intermediate Shaft Type
High-torque, crowned-tooth gear coupling with intermediate shaft for heavy-duty power transmission across widely spaced shafts. Factory direct to Australia.
Product Overview
The GIICLZ drum shape gear coupling is a moveable rigid coupling engineered for connecting two shafts that are positioned at a significant distance apart. It features an intermediate shaft (spacer sleeve) between two half-couplings, each equipped with crowned external gear teeth that mesh with internal straight teeth inside the outer sleeves. This design enables the GIICLZ to compensate for angular, radial, and axial misalignment simultaneously — making it one of the most versatile and reliable coupling choices for heavy-duty industrial power transmission.
At GBC, we have been manufacturing and exporting drum shape gear couplings for over 15 years. Our GIICLZ series is produced to JB/T8854.2 and JB/T8854.3 standards and shipped factory-direct to mining operations, steel mills, cement plants, and power stations across Australia. Every coupling leaves our facility with full dimensional inspection reports and material traceability certificates.
What Is a GIICLZ Drum Shape Gear Coupling?
Technical Definition
A drum shape gear coupling — also known as a crowned tooth gear coupling — is a type of rigid-flexible coupling where the external gear teeth on each hub are machined with a convex (barrel-shaped) profile rather than the straight involute profile found on standard gear couplings. The "GIICLZ" designation specifically identifies the double-hub, intermediate-shaft variant per the Chinese national standard JB/T8854. The "G" stands for drum-shape (Gu Xing), "II" indicates a Type II configuration with two crowned gear meshes, "CL" denotes the coupling category, and "Z" signifies the inclusion of an intermediate connecting shaft.
This crowned tooth geometry is the critical differentiator from a straight-tooth gear coupling such as the GICL type. Where a straight-tooth coupling transmits torque through a line contact along the full tooth width, the crowned tooth creates a point contact that progressively spreads under load — distributing contact stress more evenly and eliminating the destructive edge loading that occurs when shafts are misaligned.
Working Principle
The GIICLZ consists of two outer sleeves (each with internal straight teeth), two inner hubs (each with external crowned teeth), and a tubular intermediate shaft connecting the two hubs. Torque is transmitted from the driving shaft through the first hub's crowned teeth into the mating internal teeth of the first sleeve, across the intermediate shaft, and then through the second tooth mesh to the driven shaft.
The crowned tooth profile allows each mesh to accommodate angular misalignment of typically 1.0 to 1.5 degrees per mesh. Because the GIICLZ has two meshes, the total angular compensation doubles. The intermediate shaft length can be customised to bridge gaps between driving and driven equipment — a common requirement in pump-motor sets, rolling mills, and long-span conveyor drives.
The barrel shape of the teeth also permits axial sliding within the tooth mesh as shafts expand thermally or shift under load, providing built-in axial displacement compensation without imposing excessive thrust loads on bearings.
Comparison with Other Coupling Types
| Feature | GIICLZ Drum Gear | Jaw Coupling | Disc Coupling | Grid Coupling |
|---|---|---|---|---|
| Max Torque Capacity | Very High (to 4500 KN·m) | Low-Medium | Medium | Medium-High |
| Angular Misalignment | 1.0-1.5 deg per mesh | Up to 1 deg | Up to 1 deg | Up to 0.33 deg |
| Axial Displacement | Yes (built-in) | Limited | Yes | Yes |
| Shock Load Tolerance | Excellent | Good (elastomer absorbs) | Poor | Good |
| High-Speed Suitability | Up to 4000 RPM | Moderate | High | Moderate |
| Lubrication Required | Yes | No | No | Yes |
| Intermediate Shaft Option | Standard (Z type) | No | Yes (spacer) | Yes (spacer) |
| Typical Application Scale | Heavy industrial | Light-medium duty | Precision drives | Medium-heavy duty |
Specifications & Size Matrix — GIICLZ1 to GIICLZ25
The following dimensional tables are extracted directly from our product catalogue based on JB/T8854.2 and JB/T8854.3 standards. All dimensions are in millimetres. The GIICLZ series spans 25 sizes covering torques from 0.4 KN·m right up to 4500 KN·m, with permissible speeds from 460 to 4000 RPM depending on size.
GIICLZ1 – GIICLZ9 Specifications
| Type | Torque (KN·m) |
Speed (R/min) |
Shaft Bore d1, d2 | Y | J1 | D | D1 | D2 | D3 | C | H | A | B | e | Inertia (Kg·m²) |
Weight (Kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GIICLZ1 | 0.4 | 4000 | 16,18,19 | 42 | – | 103 | 71 | 71 | 50 | 8 | 2 | 18 | 38 | 38 | 0.004 | 3.5 |
| 20,22,24 | 52 | 38 | 0.00375 | 3.3 | ||||||||||||
| 25,28 | 62 | 44 | 0.004 | 3.5 | ||||||||||||
| 30,32,35,38* | 82 | 60 | 0.005 | 4.1 | ||||||||||||
| 40*,42*,45*,48*,50* | 112 | 84 | 0.007 | 5.7 | ||||||||||||
| GIICLZ2 | 0.71 | 4000 | 20,22,24 | 52 | – | 115 | 83 | 83 | 60 | 8 | 2 | 21 | 44 | 42 | 0.00675 | 5.3 |
| 25,28 | 62 | 44 | 0.00625 | 4.8 | ||||||||||||
| 30,32,35,38 | 82 | 60 | 0.007 | 5.7 | ||||||||||||
| 40,42,45,48,50*,55*,56* | 112 | 84 | 0.008 | 7.2 | ||||||||||||
| GIICLZ3 | 1.12 | 4000 | 22,24 – 38 | 52–82 | –/44/60 | 127 | 95 | 95 | 75 | 8 | 2 | 22 | 45 | 42 | 0.009–0.011 | 3.8–7.8 |
| 40–56, 60*,63*,65*,70* | 112–142 | 84/107 | 0.01325–0.01675 | 9.8–12.5 | ||||||||||||
| GIICLZ4 | 1.8 | 4000 | 38 – 55,56 | 82–112 | 60/84 | 149 | 116 | 116 | 90 | 8 | 2 | 24.5 | 49 | 42 | 0.02125–0.0255 | 10.5–13.5 |
| 60–75*, 80* | 142–172 | 107/132 | 0.039–0.04875 | 16.5–19.4 | ||||||||||||
| GIICLZ5 | 3.15 | 4000 | 40–90* | 112–172 | 84–132 | 167 | 134 | 134 | 105 | 10 | 2.5 | 27.5 | 54 | 42 | 0.044–0.0625 | 18.1–28.5 |
| GIICLZ6 | 5.00 | 4000 | 45–105* | 112–212 | 84–167 | 187 | 153 | 153 | 125 | 10 | 2.5 | 28 | 55 | 42 | 0.075–0.1065 | 23.9–36.2 |
| GIICLZ7 | 7.1 | 3750 | 50–115* | 112–212 | 84–167 | 204 | 170 | 170 | 140 | 10 | 2.5 | 30 | 59 | 42 | 0.1145–0.1898 | 29.6–54.3 |
| GIICLZ8 | 10.0 | 3300 | 55–125* | 112–212 | 84–167 | 230 | 186 | 186 | 155 | 12 | 3 | 33.5 | 71 | 47 | 0.184–0.297 | 37.8–67.4 |
| GIICLZ9 | 16.0 | 3000 | 60–150* | 142–252 | 107–202 | 256 | 222 | 212 | 180 | 12 | 3 | 34.5 | 73 | 47 | 0.358–0.575 | 60–104.4 |
GIICLZ10 – GIICLZ25 Specifications
| Type | Torque (KN·m) |
Speed (R/min) |
Shaft Bore d1, d2 | Y | L | D | D1 | D2 | D3 | C | H | A | B | e | Inertia (Kg·m²) |
Weight (Kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GIICLZ10 | 22.4 | 2650 | 65–150 | 142–252 | 107–202 | 287 | 239 | 239 | 200 | 14 | 3.5 | 39 | 82 | 47 | 0.58–0.935 | 76.1–133 |
| GIICLZ11 | 35.5 | 2350 | 110–200 | 212–352 | 167–282 | 325 | 250 | 276 | 235 | 14 | 3.5 | 40.5 | 85 | 47 | 1.223–1.625 | 137–193 |
| GIICLZ12 | 50 | 2100 | 130–200 | 252–352 | 202–282 | 362 | 286 | 313 | 270 | 16 | 4 | 44.5 | 95 | 49 | 2.39–3.093 | 212.8–290 |
| GIICLZ13 | 71 | 1850 | 150–225 | 252–352 | 202–282 | 412 | 322 | 350 | 300 | 18 | 4.5 | 49 | 104 | 49 | 3.93–6.34 | 272.3–370 |
| GIICLZ14 | 112 | 1650 | 170–250 | 302–410 | 242–330 | 462 | 420 | 335 | – | 22 | 5.5 | 86 | 148 | 63 | 6.9–8.6 | 389–509 |
| GIICLZ15 | 180 | 1500 | 190–285 | 352–470 | 282–380 | 512 | 465 | 380 | – | 22 | 5.5 | 91 | 158 | 63 | 12.425–15.575 | 566–740 |
| GIICLZ16 | 250 | 1300 | 220–320 | 352–470 | 282–380 | 580 | 522 | 430 | – | 28 | 7 | 104.5 | 177 | 67 | 21.2–26.35 | 751–974 |
| GIICLZ17 | 355 | 1200 | 250–365 | 410–550 | 330–450 | 644 | 582 | 490 | – | 28 | 7 | 99 | 182 | 67 | 38.825–49.5 | 1110–1465 |
| GIICLZ18 | 500 | 1050 | 280–400 | 470–650 | 380–540 | 726 | 658 | 540 | – | 28 | 8 | 111 | 215 | 75 | 69.5–90.5 | 1580–2160 |
| GIICLZ19 | 710 | 950 | 300–470 | 470–650 | 380–540 | 818 | 748 | 630 | – | 32 | 9 | 116 | 220 | 75 | 122.5–161.25 | 2115–2892 |
| GIICLZ20 | 1000 | 800 | 360–540 | 550–800 | 450–680 | 928 | 838 | 720 | – | 32 | 10.5 | 123.5 | 235 | 75 | 240–335 | 3223–4680 |
| GIICLZ21 | 1400 | 750 | 400–600 | 650–800 | 540–680 | 1022 | 928 | 810 | – | 40 | 11.5 | 127.5 | 245 | 75 | 435–527.75 | 4780–5905 |
| GIICLZ22 | 1800 | 650 | 450–680 | 650–900 | 540–780 | 1134 | 1036 | 915 | – | 40 | 13 | 131 | 255 | 75 | 701.25–852.25 | 6069–7504 |
| GIICLZ23 | 2500 | 600 | 530–770 | 800–900 | 680–780 | 1282 | 1178 | 1030 | – | 50 | 14.5 | 149.5 | 290 | 80 | 1415.75–1638.75 | 9633–11133 |
| GIICLZ24 | 3550 | 550 | 560–850 | 800–1000 | 680–880 | 1428 | 1322 | 1175 | – | 50 | 16.5 | 158.5 | 305 | 80 | 2330.5–2976.25 | 12460–16110 |
| GIICLZ25 | 4500 | 460 | 670–1040 | 900–1000 | 780–1100 | 1644 | 1538 | 1390 | – | 50 | 19 | 162.5 | 310 | 80 | 5174.25–7198.25 | 19837–27797 |
Note: Shaft hole lengths are recommended per J1 type. Bore diameters marked with an asterisk (*) are not used in new designs. Rotation inertia and weight are calculated based on J1 type and include axle extension.
Custom Bore & Shaft Fit Available
Need a non-standard bore, keyway, spline, or taper lock fit? Our engineering team machines custom shaft holes to your drawing within 3–5 working days. Send your drawing here.
GICL vs GICLZ vs GIICL vs GIICLZ — Gear Coupling Comparison
Choosing the right gear coupling variant depends on the shaft spacing, misalignment compensation required, and whether an intermediate shaft is needed. Here is a clear side-by-side comparison of the four primary drum shape gear coupling series:
| Feature | GICL | GICLZ | GIICL | GIICLZ |
|---|---|---|---|---|
| Standard | JB/T8854.3 | JB/T8854.3 | JB/T8854.2 | JB/T8854.2 & .3 |
| Tooth Meshes | 1 pair drum teeth | 1 pair drum teeth | 2 pairs drum teeth | 2 pairs drum teeth |
| Intermediate Shaft | No | Yes | No | Yes |
| Misalignment Compensation | Moderate | Higher (spacer adds range) | High (two meshes) | Highest (two meshes + spacer) |
| Shaft Spacing | Close-coupled | Extended distance | Close-coupled | Extended distance |
| Structure Compactness | Most compact | Moderate | Compact | Longest overall |
| Typical Use | Standard drives, small inertia | Long-span drives | High misalignment, compact | Heavy-duty, long span, high misalignment |
| Recommended For | General machinery | Pump sets, fan drives | Rolling mills, compressors | Mining, steel, cement, power gen |
Industries & Applications in Australia
The GIICLZ drum shape gear coupling is engineered for the harshest operating environments. In Australia, these couplings are deployed across industries where high torque, shaft misalignment, and shock loading are daily realities. Below are the core sectors and the specific equipment where the GIICLZ delivers measurable performance gains.
Mining & Mineral Processing
Equipment: Ball mills, SAG mills, conveyor head drives, crusher main drives, stacker-reclaimers, bucket wheel excavators.
Australian mining sites in the Pilbara, Hunter Valley, and Bowen Basin subject drive trains to extreme shock loads, dust ingress, and foundation settlement. The GIICLZ's crowned tooth geometry absorbs angular misalignment caused by uneven ground subsidence — eliminating the premature tooth spalling that straight-tooth couplings suffer in these conditions. The intermediate shaft also simplifies gearbox removal for maintenance without disturbing the motor.
Steel & Metal Manufacturing
Equipment: Rolling mill main drives, continuous casting machines, coiling mandrels, shears, roughing mill drives.
Rolling mill drives experience severe torque reversals and cyclic shock. The GIICLZ handles these transient peak loads without the fatigue cracking that rigid flange couplings exhibit. Its barrel-shaped teeth maintain full contact even under the dynamic deflection that occurs during rolling passes, protecting expensive gearbox bearings from overload.
Cement & Building Materials
Equipment: Rotary kilns, raw mills, cement mills, vertical roller mills, clinker cooler drives.
Cement plants demand continuous, uninterrupted drive-train uptime. Kiln drives in particular operate under high thermal expansion, causing shaft misalignment to shift over the operating cycle. The GIICLZ's axial sliding capability compensates for thermal growth without imposing thrust loads on the kiln's main bearing — a critical advantage that prevents costly unplanned shutdowns.
Power Generation
Equipment: Turbine-generator couplings, boiler feed pump drives, coal pulveriser drives, cooling tower fan drives.
Power station drives must maintain precise torque transmission at high rotational speeds. The GIICLZ series supports speeds up to 4000 RPM for smaller sizes and provides the low rotational inertia needed for rapid load response in peaking power plants. The sealed lubrication system withstands the elevated ambient temperatures common in Australian power stations.
Water & Wastewater Treatment
Equipment: Large-diameter pump drives, aerator drives, sludge processing equipment.
Municipal water utilities across Sydney, Melbourne, Brisbane, and Perth rely on continuous pump operation. The GIICLZ's intermediate shaft allows pump impeller removal without disturbing the motor alignment — reducing maintenance downtime from days to hours. Explore our full range of industrial couplings for water infrastructure.
Technical Advantages — Why Drum Shape Beats Straight Tooth
The fundamental difference between a drum shape (crowned) gear coupling and a straight-tooth gear coupling lies in the tooth contact geometry. A straight-tooth coupling transmits torque through a line contact across the full tooth face width. When any shaft misalignment is present, this line contact concentrates at the tooth edges, creating high edge-loading stresses that accelerate wear and can initiate tooth root fatigue cracks. The crowned tooth profile eliminates this problem entirely by creating a localised, self-centering contact patch that stays away from the tooth edges regardless of misalignment angle.
Higher Misalignment Tolerance
Each crowned tooth mesh in the GIICLZ can accommodate angular misalignment of 1.0 to 1.5 degrees. With two meshes, the total system tolerance reaches up to 3 degrees. This is critical on Australian mining sites where heavy equipment foundations settle unevenly on expansive clay soils, and where relocatable conveyor drives are repositioned frequently without precision alignment equipment. Straight-tooth couplings in these conditions typically last 6–12 months before requiring replacement; the GIICLZ commonly achieves 3–5 years in the same application.
Longer Service Life Under Shock Loads
The contact stress in a crowned tooth mesh is distributed as a Hertzian ellipse rather than a concentrated edge line. This means the maximum surface stress is significantly lower for the same transmitted torque. In crusher and mill drives where torque spikes of 2–3x nominal occur during material ingestion, this reduced peak stress translates directly into longer tooth life and fewer unplanned coupling replacements — a major cost saving when a single coupling changeout on a remote mine site can cost $15,000–$50,000 in downtime alone.
Reduced Bearing Loads
When a straight-tooth coupling operates misaligned, it generates cyclic radial forces at twice the rotational frequency. These forces are transmitted directly to the shaft bearings on both the motor and driven equipment. The crowned tooth's self-centering action minimises these parasitic forces. Field measurements on steel mill drives have shown bearing vibration reductions of 30–40% after replacing straight-tooth couplings with GIICLZ drum-type units — extending bearing life proportionally.
Lower Maintenance Frequency
The reduced edge loading and lower operating temperatures of crowned teeth mean the lubricant degrades more slowly. Standard re-lubrication intervals for the GIICLZ are 6–12 months in typical industrial environments, compared to 3–6 months for straight-tooth equivalents. For remote Australian sites where maintenance access windows are limited, this halving of lubrication frequency represents a significant operational benefit.
Suitable for High-Speed Applications
The GIICLZ series supports speeds up to 4000 RPM for smaller sizes (GIICLZ1–GIICLZ6). The crowned tooth profile generates less heat at speed because it avoids the scrubbing action that straight teeth exhibit under misalignment — where teeth slide laterally across each other at every revolution. This makes the GIICLZ suitable for turbine drives, high-speed compressor applications, and generator sets where operating temperatures must remain controlled.
Manufacturing & Quality Assurance
Process Highlights
Every GIICLZ coupling is produced in our ISO 9001:2015 certified facility using forged alloy steel blanks (typically 42CrMo or 45# carbon steel, depending on size and torque requirements). The crowned tooth profiles are generated on CNC gear hobbing machines with dedicated crowned-tooth tooling, achieving DIN Class 7 accuracy or better. Tooth flanks undergo carburising and quenching heat treatment to achieve a surface hardness of HRC 58–62 while maintaining a tough core at HRC 30–35, ensuring both wear resistance and impact toughness.
Quality Control Flow
Inspection Equipment
Our quality lab is equipped with: CNC gear profile testers (Gleason or equivalent) for verifying crowned tooth geometry, Rockwell hardness testers for post-heat-treatment verification, coordinate measuring machines (CMM) for dimensional accuracy of bores, OD, and face runout, magnetic particle inspection (MPI) for detecting surface and sub-surface defects, and spectrometers for verifying raw material chemical composition against mill certificates.
Certifications & Standards Compliance
ISO 9001:2015 quality management system certification. CE marking for applicable coupling sizes. Products manufactured to JB/T8854.2 and JB/T8854.3 standards, which are technically equivalent to the performance expectations of Australian industrial buyers. We maintain awareness of AS/NZS requirements and can provide material certificates, test reports, and compliance documentation as required by Australian procurement processes.
Why Source Your GIICLZ Gear Couplings from GBC?
Australian Standards Awareness
We understand Australian industrial operating conditions — from the 45-degree-plus ambient temperatures in Pilbara processing plants to the corrosive coastal environments of Queensland port facilities. Our coupling specifications, material selections, and surface treatments are tailored for these conditions, not generic catalogue picks.
15+ Years Export Experience to Australia
We have supplied drum shape gear couplings to Australian mining contractors, OEM equipment builders, steel mills, and industrial distributors since 2010. We understand ISPM-15 packing requirements, Australian customs documentation, and CIF/DDP shipping to Sydney, Melbourne, Perth, Brisbane, and Adelaide.
English-Speaking Engineering Team
Our technical support team includes mechanical engineers who communicate fluently in English. From initial coupling selection and sizing through to installation guidance and troubleshooting, you deal with engineers who understand your technical language and can review your drawings, FEA data, or operating parameters directly.
Competitive MOQ for SME Buyers
We offer flexible minimum order quantities starting from 1 piece for standard sizes. Australian distributors and maintenance workshops can order exactly what they need without committing to large inventories. Bulk pricing is available for projects requiring 10+ units of the same size.
OEM & Custom Capability
Beyond standard catalogue sizes, we manufacture to customer drawings. Custom bore sizes, special keyway profiles, non-standard intermediate shaft lengths, and modified flange drilling patterns are all within our production capability. Typical turnaround for custom orders is 15–25 working days depending on size and complexity.
Factory Direct Pricing
As a manufacturer — not a trading company — GBC offers factory-gate pricing with full traceability. Every coupling ships with material certificates, hardness reports, and dimensional inspection records. No middlemen, no markups, no ambiguity about origin.
Application Case Studies
Case 1: Iron Ore Conveyor Drive — Western Australia
Customer Profile: A mid-tier iron ore producer operating a 3.2 km overland conveyor system in the Pilbara region.
Challenge: The existing straight-tooth gear couplings on the head drive were failing every 8–10 months due to foundation settlement causing misalignment exceeding the coupling's rated tolerance. Each failure resulted in 36–48 hours of unplanned downtime and required a fly-in maintenance crew at a cost exceeding AUD $40,000 per event.
Solution: We supplied 2x GIICLZ14 couplings (112 KN·m rated torque, 220 mm bore) with custom intermediate shaft lengths of 450 mm to match the existing drive train layout. Bores were machined with H7 tolerance and fitted with custom keyways per the customer's drawing.
Result: After 30 months in service, no coupling failures have been recorded. The estimated annual saving in avoided downtime and replacement costs exceeds AUD $80,000. Bearing vibration on the gearbox input shaft decreased by 35% as measured by the site's condition monitoring system.
Case 2: Cement Mill Main Drive — Queensland
Customer Profile: A major cement manufacturer operating a 4.2 m diameter ball mill at a plant near Gladstone, Queensland.
Challenge: The mill's 1800 kW drive experiences significant thermal expansion during operation, causing the motor shaft to extend axially by up to 2 mm. The previous disc coupling was not designed for this axial displacement and was imposing excessive thrust loads on the motor bearings, leading to bearing replacements every 14 months.
Solution: We supplied a GIICLZ18 coupling (500 KN·m rated torque, 340 mm bore) with a 600 mm intermediate shaft. The crowned tooth design inherently accommodates axial displacement through sliding within the tooth mesh.
Result: Motor bearing life extended to 36+ months (a 157% improvement). The coupling has operated for 24 months with no maintenance intervention other than scheduled re-lubrication at 12 months. Plant manager reported "zero unplanned stops attributable to the drive coupling."
Case 3: Steel Rolling Mill — New South Wales
Customer Profile: An integrated steel works operating a hot strip rolling mill with multiple drive stands in the Illawarra region, NSW.
Challenge: The roughing mill stand drive couplings were experiencing tooth breakage under the severe torque reversals that occur during each rolling pass. The plant was replacing couplings every 4–6 months at a cost of over AUD $25,000 per coupling (including downtime costs).
Solution: We supplied 4x GIICLZ16 couplings (250 KN·m rated torque) with upgraded 42CrMo forgings and enhanced heat treatment for maximum shock resistance. Custom bore and keyway per the existing spindle dimensions.
Result: Service life increased from 4–6 months to 18+ months (a 3x improvement). Annual coupling-related maintenance budget for the roughing stand reduced by approximately AUD $75,000. No tooth breakage recorded after 18 months of continuous production.
Frequently Asked Questions
What is a GIICLZ drum shape gear coupling?
The GIICLZ is a moveable rigid coupling that uses crowned (barrel-shaped) tooth geometry on two external gear hubs connected via an intermediate shaft sleeve with internal straight teeth. The "Z" suffix denotes the intermediate shaft design, which allows connection of widely spaced shafts while compensating for angular, radial, and axial misalignment simultaneously. It conforms to JB/T8854.2 and JB/T8854.3 standards.
What is the difference between GIICLZ and GIICL couplings?
The GIICLZ includes an intermediate shaft (spacer) between the two coupling halves, enabling connection of shafts that are spaced further apart. The GIICL is a close-coupled version without an intermediate shaft, suited for directly adjacent shaft ends. Both feature two pairs of crowned teeth for maximum misalignment compensation. Choose the GIICLZ when you need to bridge a gap between the motor and driven equipment, or when you want to be able to remove the driven equipment without disturbing the motor.
What torque range does the GIICLZ series cover?
The GIICLZ series spans 25 sizes covering a torque range from 0.4 KN·m (GIICLZ1) up to 4500 KN·m (GIICLZ25). This broad range accommodates everything from small conveyor drives and pump sets through to heavy-duty mining crushers and steel mill main drives.
Can you supply custom bore sizes for GIICLZ couplings?
Yes. We offer custom bore machining including keyway, spline, and taper bore options. Each GIICLZ size supports a defined range of shaft hole diameters (refer to the specification tables above). If your required bore falls outside the standard catalogue range, our engineering team can evaluate feasibility and provide a custom solution within 3–5 working days. Contact our team with your requirements.
What maintenance does a GIICLZ coupling require?
GIICLZ couplings require periodic lubrication (typically every 6–12 months depending on operating conditions), seal inspection, and visual checks for tooth wear. The drum-shaped tooth profile reduces edge loading compared to straight-tooth designs, which extends service intervals. We recommend using EP-grade gear oil or lithium complex grease rated for the operating temperature. Seals should be inspected at each lubrication interval and replaced if showing signs of deterioration.
How does GBC ship GIICLZ couplings to Australia?
We ship to all major Australian ports including Sydney, Melbourne, Brisbane, Perth, and Adelaide. Standard orders are dispatched within 7–15 working days. We offer FOB, CIF, and DDP terms. All couplings are packed in fumigation-free plywood cases compliant with ISPM-15 for smooth Australian customs clearance. Tracking information is provided upon shipment, and our logistics team coordinates with Australian freight forwarders for door-to-site delivery if required.
Ready to Specify Your GIICLZ Coupling?
Send us your shaft dimensions, torque requirements, or equipment drawing. Our engineering team will confirm the right GIICLZ size and provide a competitive quotation — typically within 24 hours.
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Engineer-to-engineer support
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sales@australia-drive.com
GBC — Factory-direct drum shape gear couplings for Australian industry since 2010.
Moveable rigid coupling 0.4–4500 KN·m, 25 sizes, crowned tooth, for mining/steel/cement/power drives in Australia. Intermediate shaft type per JB/T8854.2. Custom bore available.
