BOLTTE 40Cr precision cross universal joint couplings transmit rotary motion between shafts where angular offset or changing shaft distance must be accommodated. The range includes compact single-joint, double-joint, quick-release and telescopic configurations.
Configuration guide
Single-joint and double-joint versions are available with pin-hole, keyway or set-screw interfaces.
Quick-release versions use the listed d1 and d2 connection profiles.
Telescopic versions are offered with pin-hole or keyway ends and the stated adjustment range.
Each selector entry lists the model, bore, outer diameter, overall length and interface details.
Material: 40Cr alloy steel.
Universal joints: match interface and shaft movement
The 40Cr range includes single, double, quick-release and telescopic arrangements. Choose the required motion and mounting interface before comparing bore and outside diameter.
Selection detail
What to check
Single Pin-Hole 3W-A5
The label specifies a 5 mm bore and 2 mm pin; check all mating dimensions.
Keyway or set-screw ends
Use the selected interface drawing rather than transferring pin-hole specifications.
Telescopic versions
Confirm the stated adjustment range and required operating length for the machine.
Does a double joint guarantee constant-speed transmission?
Do not assume that from the product name. Working angles, phasing, alignment and the complete mechanism require engineering verification, together with torque and speed limits.
Related selection references
Compare the drawings and intended function; these references are not a statement of direct interchangeability.