BOLTTE Aluminum Diaphragm Couplings – Single, Double & Triple Disc
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BOLTTE Aluminum Diaphragm Couplings
Clamp-style aluminum diaphragm couplings for servo motors, stepper motors, ball screws, encoders and precision motion systems. Choose the disc configuration, outside diameter, overall length and bore range shown in the model selector.
Available Configurations
Single-disc, double-disc and triple-disc versions.
Outside diameters from 19 to 94 mm.
Specified bore ranges from 3 to 52 mm, depending on the selected size.
Aluminum alloy hubs with diaphragm elements for precise torque transmission.
Aluminum diaphragm couplings: disc count and envelope
Choose single-, double- or triple-disc construction together with the exact outside diameter, length and bore range. Equal outside diameters can have different lengths and supported bores.
Selection detail
What to check
Single Disc / OD 19 x L 19 mm
One listed configuration with a 3–8 mm bore range.
Double Disc / OD 19 x L 26 mm
A different length and disc arrangement despite the same outside diameter.
Finished bores
Provide both shaft-end dimensions, tolerances and any keyway requirements.
Does adding discs establish a higher torque rating?
No rating should be inferred from disc count alone. Confirm the selected model's torque, speed and misalignment limits for the application.
Related selection references
Compare the drawings and intended function; these references are not a statement of direct interchangeability.
Verify shaft diameter, operating speed, torque, misalignment, mounting space and the selected model dimensions before ordering. Dimensions are in millimetres unless marked otherwise.
Required Order Notes
Please enter the following in the order notes: bore diameter for shaft end A; bore diameter for shaft end B; whether both bores are the same; through-bore or blind-bore requirement; keyway requirement and keyway size; fit or tolerance; operating speed and torque; alignment conditions; and any special machining instructions.
Product Details and Technical Reference
Modell / Konfiguration / SKU
BOLTTE Aluminum Diaphragm Couplings – Single, Double & Triple Disc