
RULAND MANUFACTURING
Ruland Manufacturing, founded in 1937 in Marlborough, Massachusetts, USA, is a manufacturer of precision shaft couplings and shaft collars. The company focuses on motion control components for applications requiring accurate torque transmission, misalignment accommodation, and secure shaft attachment. Ruland’s product families include beam couplings (both set screw and clamp-on types), rigid couplings, Oldham couplings, and shaft collars. These components are available in inch and metric dimensions, with bore diameters ranging from 1/8 inch to 3 inches and 3 mm to 80 mm, depending on the series. Materials include stainless steel (e.g., 303 and 304 grades) and aluminum (e.g., 2024-T4), selected for corrosion resistance, strength, or weight reduction. Ruland couplings are rated for angular misalignment up to 3 degrees (beam types) and axial motion up to 0.004 inches (Oldham hubs). Shaft collars are offered in one-piece clamp-on designs with round bores, in both inch and metric-with-inch-bore configurations. All components are machined to tolerances typical of motion control equipment, with surface finishes that minimize wear. 3G Electric stocks over 5,400 SKUs from Ruland, covering the full range of coupling types and collar sizes. Inventory includes both standard and less common bore combinations, such as different bore dimensions on each end of a coupling. 3G Electric provides global logistics support, enabling procurement teams to source these precision components for integration into automated machinery, packaging equipment, and other industrial systems where shaft alignment and torque transfer are critical. The catalog includes detailed specifications for each SKU, including bore diameter, material, misalignment ratings, and dimensional data, allowing engineers to select components based on application requirements without additional cross-referencing.

RULAND MANUFACTURING Motion Control Coupling Hub: 0.5° Angular Misalignment

RULAND MANUFACTURING Shaft Collar: 1-Piece, Inch, Round, Clamp-On, 3/16 in Bore Dia

RULAND MANUFACTURING Rigid Shaft Coupling: 1 1/8 in Bore Dia 1, 1 1/8 in Bore Dia 2

RULAND MANUFACTURING Controlflex Coupling Hub: 1° Angular Misalignment, 1.5 mm Axial Motion

RULAND MANUFACTURING Disc Coupling: 1 1/4 in x 30 mm Bore Dia, 3 1/8 in OD, Round

RULAND MANUFACTURING Motion Control Coupling: 3° Angular Misalignment, 12 mm Bore Dia 1, Aluminum

RULAND MANUFACTURING Quick Clamping Shaft Collar: 1 15/16 in Bore Dia, Round, 303

RULAND MANUFACTURING Motion Control Coupling: 3° Angular Misalignment, 8 mm Bore Dia 1, Aluminum

RULAND MANUFACTURING Motion Control Coupling Hub: 0.5° Angular Misalignment

RULAND MANUFACTURING Quick Clamping Shaft Collar: 70 mm Bore Dia, Round, 303, Stainless Steel

RULAND MANUFACTURING Bellows Coupling: 30 mm Bore Dia 1, 5/8 in Bore Dia 2

RULAND MANUFACTURING Disc Coupling: 35 mm x 25 mm Bore Dia, 69.9 mm OD, Round with Keyway

RULAND MANUFACTURING Slit Coupling: 3/8 in Bore Dia 1, 3/8 in Bore Dia 2

RULAND MANUFACTURING Motion Control Coupling: 3° Angular Misalignment, 11 mm Bore Dia 1, Clamp On


