51 mm DIAMETER Acrobatic Rigging Clamp "Cheeseborough" with ball bearings for SWINGING trapeze and Acrobatics.
Intended for the practice of circus arts for professionals and circus schools.
They can also be used for flights effects and human lifting as part of shows as well as for stunts and special FX.
Thanks to its performance and quality of manufacture, this product is the reference anchor point for circus schools.
Originality ! 48.3 mm clamps are never perfectly adequate on 50 mm aluminum tubes. The rare feature of this product is to offer a real drop forged clamp in 51 mm diameter !
Acrobatic rigging clamp with 2 ball bearings mounted parallel on the shackle axis
and a ball thrust bearing effect mounted laterally, in order to correctly take up the horizontal forces due to the angles of the apparatus: swinging trapeze and cloud swing mainly.
The two shouldered bearings take up the lateral forces in the torque much better than a single bearing, which preserves the wear of the side part of the shackle.
The WICHARD Self-locking 12 mm stainless steel bow shackle is placed for a swing perpendicular to the crane bar. (classic configuration)
Intended for hanging aerial swinging apparatus (Swinging trapezes, Cloud swing ropes, flying silks, flying trapezes, Washington trapeze, aerial rings, etc.).
These clamps are compatible with standard steel tubes and scaffolding type tubes (48.3 / 50 / 51 mm). They are also compatible with the aluminum tubes of the usual entertainment trusses.
Their mounting on 50mm tubes works perfectly and respects the sensitivity of the aluminum tubes.
ATTENTION ! For mechanical reasons, the STAINLESS WICHARD Shackle is superior in resistance.
DO NOT take into account the WLL information indicated on the bow shackle.
* Nominal tube diameter: 51 mm
* Acceptable tube diameter: 48,3 to 51 mm
* Color: Black & Silver
* WLL: 900 daN (kg)
* MBS: 3600 daN (kg)
* Respects the guidances of the acrobatic apparatuses and the Machinery Directive 2006-42-CE
* Design Factor: 4
* Work axis: in the axis of the swing (see instructions)
* Possibility of pulling out of the axis: Yes up to 45° (see instructions)
* Other tube diameters: 34, 42, 48,3 or 60 mm
* Color: other colors or raw finish, on request, min 12 pcs
* Inverted swing direction: swinging in the direction of the tube
* Other clamps are also available with fixed simple O ring for static apparatus : Acrobatic Clamp with ring anchor - 48mm
| Width | 70 mm |
| Diameter | Pipe : 49 - 51 mm |
| Inside Ø | 34 mm |
| Wire Ø | 12,5 mm |
| Screw Ø | M14 Clamp |
| Material | Drop forfged steel and Stainless |
| WLL | 900 kg (daN) |
| Coefficient | 4 |
| Breaking load | 3600 kg (daN) |
| Efficiency | 2 ball bearings |
| Standard | Dir Machine 2006-42-CE |
| CE | YES |
| Color | Black & Silver |
| Manufacturer | Black Z |
| Version | MK1 2023 |
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