SACHS RCS 184 Racing Clutch, Sintered Metal 2.6 mm
The SACHS RCS 184 sintered metal clutch from ZF-Motorsport is a modular 184 mm clutch system for heavily loaded motorsport drivetrains. The series combines compact design, low rotating mass, high torque capacity and very direct torque transfer. Typical applications include race cars, rally cars, touring cars, GT sprint cars, prototypes and high-performance motorsport projects with sequential or dog-engagement gearboxes.
This category includes SACHS RCS 184 racing clutches with sintered metal 2.6 mm friction discs. The designation S2.6 describes a sintered metal clutch disc with 2.6 mm lining thickness. The friction lining is sintered directly onto the clutch carrier and therefore differs technically from Sinter Pad friction discs with individual friction segments.
Technical variants of the RCS 184 sintered metal series
The variants differ mainly in the number of friction discs, the transferable torque capacity and the thermal reserve. More friction discs increase the effective friction surface and allow higher torque transfer in a compact design. The RCS 184 sintered metal version with 2.6 mm lining thickness is designed for fast response, low mass moment of inertia and very direct torque engagement.
| Version | Torque capacity | Design | Technical classification |
|---|---|---|---|
| SACHS RCS 1/184-N-S2.6 | 385 Nm | Single-plate racing clutch with 184 mm diameter | Compact version with low release force and fast response |
| SACHS RCS 1/184-H-S2.6 | 654 Nm | Single-plate racing clutch with 184 mm diameter | Increased clamp load for more torque reserve within the same clutch size |
| SACHS RCS 2/184-H-S2.6 | 1,308 Nm | Twin-plate racing clutch with 184 mm diameter | High torque capacity in a compact design with reduced mass moment of inertia |
| SACHS RCS 3/184-H-S2.6 | 1,962 Nm | Triple-plate racing clutch with 184 mm diameter | More friction surface and thermal reserve for very high load |
| SACHS RCS 4/184-H-S2.6 | 2,616 Nm | Four-plate racing clutch with 184 mm diameter | Maximum torque capacity within the RCS 184 sintered metal series |
Directly sintered sintered metal lining
In the RCS 184 Sinter S2.6 version, the metallic friction lining is bonded directly to the clutch carrier. This design reduces the mass and installation height of the friction disc and provides high rigidity. The result is a clearly defined bite point, fast response during clutch engagement and very direct torque transfer.
The low lining thickness of 2.6 mm supports rapid engine-speed changes and spontaneous engine response. At the same time, the multi-plate design enables very high torque values within the compact 184 mm size. Compared with Sinter Pad versions, this friction disc is designed for lower mass, more compact installation height and especially fast response.
Complete clutches and spare parts for SACHS RCS 184
The category includes complete SACHS RCS 184 racing clutches with sintered metal 2.6 mm friction discs as well as matching spare and wear parts for maintenance, inspection and rebuilds. These include clutch discs, pressure plates, intermediate plates, clutch housings, adapter plates, motorsport concentric slave cylinders, release rings and further components of the modular RCS system.
In motorsport use, friction discs, pressure plates, intermediate plates and housing components are regularly checked according to running time, thermal load and wear condition. The modular design allows targeted replacement of individual components and supports service-friendly maintenance of the clutch unit.
Benefits of the RCS 184 sintered metal 2.6 mm version
The SACHS RCS 184 racing clutch with sintered metal 2.6 mm friction discs combines high torque capacity with compact design and very direct friction characteristics. The directly sintered friction lining supports fast response, precise release behaviour and a low mass moment of inertia of the clutch unit.
Directly sintered friction lining for low installation height, low mass and fast response.
Compact size with a strong balance of torque capacity and mass moment of inertia.
Torque capacity from 385 Nm to 2,616 Nm matched to drivetrain load.
Precise torque engagement for short shift windows and clear feedback in motorsport.
Designed for stepped flywheels and, depending on version, available with 44 or 49 mm release diameter.
Modular RCS system for high loads, consistent performance and targeted maintenance.
Applications
The RCS 184 racing clutch with sintered metal 2.6 mm friction discs is suitable for motorsport applications where compact design, high torque capacity, fast response and precise torque engagement must be combined. The 184 mm size offers more thermal reserve than very small 140 mm systems while remaining more compact than RCS 200 clutches.
- Circuit racing: fast response and precise torque transfer under high temperature load
- Rally & rallycross: durable torque engagement during starts, load changes and changing grip conditions
- Hill climb & slalom: direct power delivery, short shift windows and rapid engine-speed changes
- Touring cars & GT sprint: high torque capacity in a compact 184 mm design
- Racing projects: RCS 184 clutch with sintered metal 2.6 mm friction technology and modular parts supply
Sintered metal 2.6, Sinter Pad, Organic or carbon: technical classification
The choice of friction material and lining thickness affects response, temperature resistance, wear behaviour and drivetrain load. Sintered metal 2.6 mm provides very direct friction characteristics with low installation height and reduced mass. Sinter Pad versions offer more wear volume, Organic is softer and easier to modulate, while carbon is used for very high thermal loads and particularly compact high-performance applications.
The SACHS RCS 184 racing clutch with sintered metal 2.6 mm friction discs is therefore a suitable technical choice when fast response, low rotating mass and high torque capacity are the main priorities. For applications requiring particularly high wear volume, a Sinter Pad version may be suitable; for softer engagement, an organic version, and for maximum temperature load, a carbon clutch.
Technical selection: torque, friction discs and hub profile
When selecting the correct SACHS RCS 184 sintered metal clutch, engine power, maximum engine torque and the thermal load limit are decisive. The specified transferable torque describes the maximum transferable engine torque of the respective version without any additional safety margin. Depending on application, vehicle weight, tyre grip, gear ratio, starting load, temperature development and load duration, the clutch should be adequately sized or deliberately oversized.
A clutch operated continuously close to its maximum torque capacity may be exposed to higher thermal and mechanical load. For applications with high starting torque, frequent starts, strong grip or long load duration, a larger torque reserve is advisable. Sizing should therefore be based on the real vehicle load and not only on theoretical engine torque.
In addition to torque capacity, flywheel, release system, release travel, installation height and the correct hub profile for the gearbox input shaft are decisive. The RCS 184 sintered metal 2.6 mm versions are designed for stepped flywheels and, depending on the variant, are available with 44 or 49 mm release diameter.
Frequently asked questions about the SACHS RCS 184 sintered metal 2.6 mm clutch
Which RCS 184 sintered metal 2.6 mm clutches are available in this category?
This category includes SACHS RCS 184 racing clutches with sintered metal 2.6 mm friction discs in single-, twin-, triple- and four-plate versions. Depending on the variant, torque capacity ranges from 385 Nm to 2,616 Nm maximum transferable engine torque.
What does S2.6 mean on the SACHS RCS 184?
S2.6 designates a sintered metal clutch disc with 2.6 mm lining thickness. The friction lining is sintered directly onto the clutch carrier, creating a light, rigid and very direct-response friction disc for motorsport.
What is the difference between sintered metal 2.6 and Sinter Pad?
Sintered metal 2.6 mm has a directly sintered friction lining with low installation height and low mass. Sinter Pad discs work with individual sintered metal pads and offer more wear volume. S2.6 is therefore especially designed for fast response and low mass moment of inertia.
What is the difference between RCS 1/184, RCS 2/184, RCS 3/184 and RCS 4/184?
The variants differ in the number of friction discs and clamp load. The more friction discs are used, the greater the friction surface, torque capacity and thermal reserve. The sintered metal 2.6 mm series ranges from 385 Nm to 2,616 Nm maximum transferable engine torque.
When is RCS 184 more suitable than RCS 140 or RCS 200?
The RCS 184 is technically positioned between the very compact RCS 140 and the larger RCS 200. It offers more thermal reserve and torque capacity than RCS 140, while remaining more compact and responsive than RCS 200. This makes it suitable for powerful race cars with limited installation space.
Are individual spare parts available for the SACHS RCS 184 sintered metal?
Yes, individual spare and wear parts are available for the RCS 184. These include clutch discs, pressure plates, intermediate plates, clutch housings, adapter plates, motorsport concentric slave cylinders, release rings and further components of the modular RCS system.
What matters in technical selection?
Engine torque, thermal load, application, flywheel type, release system, release travel, installation height and hub profile are decisive. The specified transferable torque must be understood as a maximum value without any additional safety margin.