Single Beam Couplings • Double Beam Couplings • Cross-Slotted Couplings Edition 2025/2026 RINGSPANN® Mot depose de RINGSPANN GmbH, Bad Homburg

Issue 04/2025 - Technical details subject to change without notice

RINGSPANN Beam Couplings are machined from a single piece and made from homogeneous materials. Their basic form consists of a cylindrical body, into which a helix slot (beam) is cut. This beam shape gives rise to a precise flex zone, resulting in an elasticity that can be precisely calculated. The «advantage of a single-piece product» is that it integrates several functions and individual parts into one single, space-saving unit. Beam Couplings have no additional moving parts and are therefore wear-free. This also results in high dynamic stability and vibration-free, smooth running bearing loads,...

• Small coupling for universal use • Backlash-free angle-synchronous transmission of rotary movements • Made of aluminium 7075-T6, material no. 3.4365 • Optimum compensation of shaft misalignments • Typical applications: Encoders, tachogenerators, spindle drives The Beam Coupling RBC ... EWS made of aluminium provides a lightweight and corrosion-resistant connection between rotary encoders, tachogenerators or spindle drives and machine shafts. The low weight and high corrosion resistance of the coupling ensure precise and reliable operation, even under demanding conditions.

11 Values based on the smallest bore diameter • Bore tolerance: 0/+ 0.05 mm; Shaft tolerance (recommended): - 0.005/- 0.013 mm 11 Values based on the smallest bore diameter • Other sizes and designs with special bores (including inch dimensions) on request

Small coupling for universal use Backlash-free angle-synchronous transmission of rotary movements Made of stainless steel 17-4PH, Material no. 1.4542 Optimum compensation of shaft misalignments Typical applications: Encoders, tachogenerators, spindle drives The steel Beam Coupling RBC ... EWS is also ideal for spindle drives. Due to its higher strength and load capacity, it is particularly suitable for more power-intensive applications where the Beam Couplings RBC ... EWS made of aluminium reach their limits.

11 Values based on the smallest bore diameter • Bore tolerance: 0/+ 0.05 mm; Shaft tolerance (recommended): - 0.005/- 0.013 mm 11 Values based on the smallest bore diameter • Other sizes and designs with special bores (including inch dimensions) on request

Single Beam Couplings RBC … EWC-ALU with clamp made of aluminium Features • Small coupling for universal use • Backlash-free angle-synchronous transmission of rotary movements • For light applications • Made of aluminium 7075-T6, material no. 3.4365 • Optimum compensation of shaft misalignments • Typical applications: Encoders, tachogenerators, spindle drives Application example The Beam Coupling RBC … EWC made of aluminium is ideal for applications with rotary encoders, as it enables precise torque transmission and reliably compensates for misalignment. Thanks to its low weight and corrosion...

Single Beam Couplings RBC ... EWC-ALUwith clamp made of aluminium 9-1 11 Values based on the smallest bore diameter • Other sizes and designs with special bores (including inch dimensions) on request

Single Beam Couplings RBC ... EWC-STEwith clampmade of steel, stainless 10-2 Features Small coupling for universal use Backlash-free angle-synchronous transmission of rotary movements Made of stainless steel 17-4PH, Material no. 1.4542 Optimum compensation of shaft misalignments Typical applications: Encoders, tachogenerators, spindle drives The steel Beam Coupling RBC ... EWC is also ideal for applications with encoders. Due to its higher strength and load capacity, it is particularly suitable for more power-intensive applications where the Beam Couplings RBC ... EWC made of aluminium reach...

Single Beam Couplings RBC ... EWC-STEwith clampmade of steel, stainless 11-1 11 Values based on the smallest bore diameter • Other sizes and designs with special bores (including inch dimensions) on request

Double Beam Couplings RBC ... DWC-ALUwith clamp made of aluminium 12-2 Features Small coupling for universal use Backlash-free angle-synchronous transmission of rotary movements High radial misalignment Made of aluminium 7075-T6, material no. 3.4365 Optimum compensation of shaft misalignments Typical applications: General mechanical engineering, apparatus engineering, spindle drives The Beam Coupling RBC ... DWC is characterised by its double slotting, which makes it more flexible and allows it to compensate for greater radial misalignment. With its low weight and excellent damping properties,...

Double Beam Couplings RBC ... DWC-ALUwith clamp made of aluminium 13-1 11 Values based on the smallest bore diameter • Other sizes and designs with special bores (including inch dimensions) on request

Double Beam Couplings RBC ... DWC-STEwith clampmade of steel, stainless 14-2 Features Small coupling for universal use Backlash-free angle-synchronous transmission of rotary movements High radial misalignment Made of stainless steel 17-4PH, Optimum compensation of shaft misalignments Typical applications: General mechanical engineering, apparatus engineering, spindle drives The Beam Coupling RBC ... DWC made of steel offers the possibility of transmitting higher torques thanks to its high strength. It is ideal for more power-intensive applications such as spindle drives, where stability and load...

Double Beam Couplings RBC ... DWC-STEwith clampmade of steel, stainless 15-1 11 Values based on the smallest bore diameter • Other sizes and designs with special bores (including inch dimensions) on request

Cross-Slotted Couplings RBC ... FKC-ALUwith clamp made of aluminium 16-2 Features Backlash-free, torsionally rigid Cross-Slotted Coupling For backlash-free drives with fast start/stop cycles Made of aluminium 7075-T6, material no. 3.4365 Typical applications: Servomotors, positioning systems, step motors The RBC ... FKC is the ideal solution for compensating all types of misalignment. The unique slotted structure is the optimum solution for non-aligned shafts or highly resonant installation situations. The one-piece production enables high speeds and adaptation to customised lengths.