Utilizing the wedge principle to form a strong self-locking structure is the purpose of (HL units). These are also known as hard lock nuts. A wedge forced into the space between a cylinder and the tube that surrounds it creates an assembly that locks forcefully. If this effect is achieved by matching grooves in the nut and bolt, a wedge can be hammered in but leaves the assembly difficult to operate.
Rather than using the brute force of a hammer, it is preferable from an operability standpoint to use one convex and one concave nut in place of the wedge and hammer. Tightening these two produces the same effect as driving a wedge in with a hammer. Using a threaded screw makes it easier to properly and securely position the wedge.
Paired self-locking units work best. The underside nut is tautened first; subsequently tighten the top one. Installing the upper nut manually forms the requisite tightening margin. The inherent self-locking result is invoked by the rotating force created by means of a wrench turning the cap nut.
The evolution of this brand of nut had the intention of ending the nuisance of damaged bolts and slack screws. This style of formation has the benefit of averting any shortfall in axial force ensuing as a result of metal fatigue. Traditional Japanese architecture motivated the fabrication of a wedge-shaped, double nut assembly to economically eliminate the drawback of slackness in screws as well as creating enhanced workability.
Certainty and trust are established by the confidence that HL units never acquire dangerous play. No ends of studies about screw looseness have demonstrated this kind of nut's superiority in safeguarding the primary tightening strength. Appraisals carried out on the job by construction industry workers have verified that using these pioneering nuts instead of old-fashioned kinds significantly lowers overheads in terms of man-hours. One further substantial plus is the knowledge that HL units provide enhanced security, preventing erection firms from coping with lawsuits launched because of industrial accidents following-on from sheared-off bolts or screws becoming loose.
There are various situations where this mechanism alone has been confirmed to be acceptable. One such condition is the existence of relentless external powers applied in a very similar rotational path as a bolt, or straight up from the bolts, or perpendicular relative to bolts. Another case in point is when pulsations are constantly present. Severe variability of temperature is one more capacity of these devices.
HL units create a seal comparable to riveting, adhesive bonding or welding. Unlike these fixings, HL units can be easily removed for servicing or maintenance. As the self-tightening performance does not deteriorate over time, HL units can be re-used time after time.
Hardlock Industry Co., Ltd. Is the foremost manufacturer of these very useful fasteners worldwide. Their technology has been approved for aerospace applications by projects including the Kansai International Airport. Leading American aerospace companies including Boeing utilize HL nuts for their safety record. The Japanese Olympic bobsleigh employs special HL units made from lightweight titanium, which have a whole bag of benefits all their own.
Rather than using the brute force of a hammer, it is preferable from an operability standpoint to use one convex and one concave nut in place of the wedge and hammer. Tightening these two produces the same effect as driving a wedge in with a hammer. Using a threaded screw makes it easier to properly and securely position the wedge.
Paired self-locking units work best. The underside nut is tautened first; subsequently tighten the top one. Installing the upper nut manually forms the requisite tightening margin. The inherent self-locking result is invoked by the rotating force created by means of a wrench turning the cap nut.
The evolution of this brand of nut had the intention of ending the nuisance of damaged bolts and slack screws. This style of formation has the benefit of averting any shortfall in axial force ensuing as a result of metal fatigue. Traditional Japanese architecture motivated the fabrication of a wedge-shaped, double nut assembly to economically eliminate the drawback of slackness in screws as well as creating enhanced workability.
Certainty and trust are established by the confidence that HL units never acquire dangerous play. No ends of studies about screw looseness have demonstrated this kind of nut's superiority in safeguarding the primary tightening strength. Appraisals carried out on the job by construction industry workers have verified that using these pioneering nuts instead of old-fashioned kinds significantly lowers overheads in terms of man-hours. One further substantial plus is the knowledge that HL units provide enhanced security, preventing erection firms from coping with lawsuits launched because of industrial accidents following-on from sheared-off bolts or screws becoming loose.
There are various situations where this mechanism alone has been confirmed to be acceptable. One such condition is the existence of relentless external powers applied in a very similar rotational path as a bolt, or straight up from the bolts, or perpendicular relative to bolts. Another case in point is when pulsations are constantly present. Severe variability of temperature is one more capacity of these devices.
HL units create a seal comparable to riveting, adhesive bonding or welding. Unlike these fixings, HL units can be easily removed for servicing or maintenance. As the self-tightening performance does not deteriorate over time, HL units can be re-used time after time.
Hardlock Industry Co., Ltd. Is the foremost manufacturer of these very useful fasteners worldwide. Their technology has been approved for aerospace applications by projects including the Kansai International Airport. Leading American aerospace companies including Boeing utilize HL nuts for their safety record. The Japanese Olympic bobsleigh employs special HL units made from lightweight titanium, which have a whole bag of benefits all their own.
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