Hydraulic Nut Collar - This nut has an internally and externally threaded piston. The external thread is fitted with a load retaining, locking collar. A gap is created between the nut body and the locking collar when pressure is applied. The gap is a combination of the compression of the bolted joint and gasket, if fitted, plus the elongation of the bolt. The nut is pressurised until the hydraulic jack develops more than the desired pre-load. The locking collar is tightened. The pressure is released, and the pre-load is transferred to the locking collar threads.
| Model Code | Particulars | M | OD | H | P. Seal Inner | P. Seal Outer | P. Area Sq. Cm. | Capacity At 700 bar | Capacity At 1500 bar | Max. Stroke | Wt. in Kg |
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