WSS Small Style Flex Universal Couplings with Spider
Our WSS small style flex universal couplings with spider deliver exceptional power transmission for demanding industrial applications. Capable of speeds up to 4000 r/min and a 45° maximum rotation angle, these couplings feature a telescopic design to accommodate distance variations. Available with custom spline, hexagonal, or square holes.
Core Product Characteristics
Engineered for maximum reliability and versatile performance, our WSS series is the premier choice for demanding power transmission systems. Whether you are dealing with challenging installation spaces or high-intensity industrial lines, these couplings deliver uncompromised efficiency.
- Broad Applicability: Applicable to all kinds of general mechanical situations, providing smooth power transmission where you need it most.
- High-Speed Capacity: The maximum rotate speed may reach an impressive 4000 r/min, making it suitable for rapid-cycle equipment.
- Extended Reach: Intelligently designed to connect a bigger distance between shafts, resolving complex spacing issues.
- Extreme Flexibility: Each point of the largest rotation angle can be 45°, accommodating severe misalignments.
- Configuration Options: Available in both single-jointed type and bimodal type to match your specific engineering layouts.
- Easy Installation: Fast locking is available, significantly reducing maintenance downtime and assembly labor costs.
- Precision Machining: The hole of the finished product tolerance is exactly H7. Spline, Hexagonal, and Square holes are available as long as you request.
Technical Parameters & Dimensions
Please refer to the comprehensive sizing chart below to select the appropriate model based on your nominal torque requirements. If your project demands specifications outside of standard metrics, the link size (which is different from the list) can be produced by the order of the customer. For other specialized transmission components, explore our dedicated Universal joint category.
| Size / Type | Nominal Torque Tn (N.m) |
D (mm) |
d max (mm) |
L0 max (mm) |
L (mm) |
L1 (mm) |
L2 (mm) |
S (mm) |
|---|---|---|---|---|---|---|---|---|
| WSS2 | 22.4 | 20 | 12 | 176 | 22 | 32 | 112 | 30 |
| WSS3 | 45 | 25 | 14 | 200 | 27 | 40 | 120 | 30 |
| WSS4 | 71 | 32 | 18 | 243 | 30 | 46 | 151 | 35 |
| WSS5 | 140 | 40 | 22 | 287 | 38 | 58 | 171 | 43 |
| WSS6 | 280 | 50 | 28 | 337 | 44 | 69 | 199 | 50 |
| WSS7 | 560 | 60 | 35 | 428 | 60 | 91 | 246 | 65 |
| WSS8 | 1120 | 75 | 42 | 556 | 84 | 122 | 312 | 90 |
Engineering Drawing & Dimension Blueprint
The blueprint above clearly annotates critical installation dimensions such as L, L1, and L2, assisting your engineering team in rapid model selection and integration into standard 3D CAD assemblies.
Advanced Design Principles & Material Engineering
In modern precision manufacturing and heavy-duty transmission systems, the operational stability of your equipment directly dictates the overall efficiency of your production line. We are immensely proud of the WSS Small Style Flex Universal Couplings with Spider. These units are forged from high-strength alloy steel and undergo proprietary heat treatment processes. This meticulous manufacturing guarantees exceptionally high fatigue strength even during prolonged, high-load operations. The core telescopic shaft design effectively transmits a broad spectrum of nominal torques—from 22.4 N.m up to 1120 N.m—while granting engineers immense physical spatial tolerance during machinery installation.
Elasticity and Telescopic Compensation for Harsh Environments
During actual industrial operations, machinery frequently encounters foundational settling, microscopic shaft distance changes induced by thermal expansion and contraction, or axial deviations resulting from imperfect installation precision. The WSS universal joint mitigates these issues through its internal precision spline and sliding sleeve structure, which allows for dynamic telescopic expansions ranging from 30mm to 90mm (refer to the 'S' value in our parameter table). This self-adaptive compensation mechanism acts much like the "cartilage" of a mechanical system, absorbing destructive stresses from both radial and axial directions. Consequently, it protects the motor spindles and reducer bearings, substantially prolonging the lifespan of expensive power sources.
Navigating Between Single-Jointed and Bimodal Types
Addressing diverse spatial limitations, we offer two standardized structural solutions. The single-jointed type features a highly compact configuration, making it the optimal choice for short-distance transmissions with a single angular deviation (with a maximum allowance of 45 degrees). Conversely, the bimodal type utilizes an intermediate shaft transition, enabling it to concurrently manage both parallel misalignment and angular misalignment between the driving and driven shafts. Whether applied to the power take-off (PTO) of agricultural combine harvesters on vast Australian farms or integrated into the synchronized conveyor belts of precision packaging machinery, the WSS framework provides unparalleled adaptability.
Customer Reviews & Feedback
See what our industrial partners across Australia are saying about our transmission solutions.
David M., Procurement Manager
Application: Mining Conveyor Belt Drives (WA)
"In the open-pit iron mines of Western Australia, our equipment is constantly subjected to violent vibrations and dense dust. GBC supplied us with the WSS8 model, and its torque endurance is phenomenal (handling up to 1120 N.m easily). The massive 45-degree compensation capacity completely solved our alignment struggles in the field. Running 24/7 for a year now with zero signs of wear!"
Sarah L., Lead Engineer
Application: Automated Food Packaging (NSW)
"Because our production line requires rapid, high-speed cycling, we had been searching for a coupling that could remain stable at 4000 r/min. This small style flex universal coupling fit the bill perfectly. Furthermore, the fast locking design significantly reduced assembly hours for our floor technicians. The H7 tolerance and custom hexagonal holes were machined flawlessly."
James K., Maintenance Supplier
Application: Tractor PTO Refurbishment (QLD)
"As a parts supplier, we frequently get requests to upgrade older agricultural machinery. GBC's non-standard customization capability was a lifesaver. They tailored specific spline hole dimensions according to our drawings, and delivery to Brisbane was incredibly swift. The telescopic action is remarkably smooth, and our clients report a lifespan that outlasts OEM parts."
Frequently Asked Questions About the WSS Series
1. Just how fast can this coupling spin without vibrating itself to pieces?
Depending on the specific size you order and your machinery's balancing profile, our WSS series operates brilliantly under conventional mechanical setups. It boasts a maximum limit of up to 4000 r/min. This makes it entirely capable of handling direct connections to high-speed motors and managing the rigorous demands of precision servo drive systems without breaking a sweat.
2. The shaft on my machine has a really weird diameter. Can you guys customize the bore holes?
Absolutely! While our finished product holes come with a strict standard H7 tolerance, we totally understand that the real world isn't always standard. If you have special requirements, we've got you covered. Whether it's cutting a standard keyway, machining complex internal splines, or crafting hexagonal and square holes, we can deliver exactly what's on your drawing.
3. I'm torn between the single-jointed and the bimodal type. Any tips on which one to pick?
This is a super common question we get! Here is the rule of thumb: If the axes of your two shafts intersect and only have a fixed angular deviation (up to 45 degrees), the single-jointed type is your best bet and saves space. However, if your shafts not only have an angle offset but are also parallel but slightly displaced radially, you absolutely need the bimodal type or one with a telescopic shaft to prevent destructive bending moments from tearing your bearings apart.
4. Your catalog mentions a 'fast locking' option. Is that complicated to install?
Not at all; in fact, it's incredibly simple! The fast locking design was specifically created to eliminate the headaches of thermal shrink-fitting or heavy press-fitting processes. Your engineers simply use standard hand tools to tighten the high-strength external bolts. Through friction ring or shrink disc principles, it creates a rock-solid, zero-backlash connection. It's a massive time-saver for production lines that require frequent disassembly for cleaning or maintenance.
5. How long does shipping to Australia usually take, and what's the process?
For standard catalog sizes, we keep a robust inventory ready to go. Once you confirm the order, air freight to major Australian hubs (like Sydney, Melbourne, or Brisbane) typically lands in just 5-7 business days. If you're ordering highly customized splines or non-standard lengths, the production cycle takes about 1-2 weeks. After that, our logistics team will consult with you to recommend the most cost-effective sea or air freight route based on your order's total weight.
About GBC: Your Trusted Industrial Transmission Experts
With decades of deeply rooted experience in the mechanical transmission sector, GBC is dedicated to providing world-class coupling solutions to global markets—especially catering to Australia's highly developed mining, agricultural, and automation equipment sectors. Our facilities are equipped with state-of-the-art CNC machining centers and rigorous torque fatigue testing labs. This infrastructure ensures that every product leaving our floor meets the highest industry standards for material wear resistance, dynamic balancing precision, and structural integrity.
We refuse to be limited by standard catalog parts. We understand that the realities of the industrial field are ever-changing and highly specific. That is why we have built an incredibly flexible, non-standard customization production line. Whether you require special anti-corrosion coatings, reinforced structures for over-spec torque limits, or completely bespoke drive shafts reverse-engineered from your drawings, our senior engineering team responds swiftly. We don't just supply universal couplings; we partner with you to conquer transmission challenges! We warmly welcome clients to provide drawings or samples to receive tailored, non-standard manufacturing solutions.
Our WSS small style flex universal couplings with spider deliver exceptional power transmission for demanding industrial applications. Capable of speeds up to 4000 r/min and a 45° maximum rotation angle, these couplings feature a telescopic design to accommodate distance variations. Available with custom spline, hexagonal, or square holes.
