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 development of this variety of nut was intended to end the inconvenience of broken bolts and loose screws. This type of assembly has the advantage of preventing any loss of axial force resulting from metal fatigue. Antique Japanese architecture stimulated the design of these wedge-shaped, twin nut assemblies to cheaply eradicate the problem of looseness in screws and create advanced workability.
Confidence and surety are granted by the certainty that such nuts never develop dangerous play. A lot of research into screw looseness has attested to this form of nut's excellence in upholding the original tightening strength. Evaluations done in situ by those working in construction have substantiated the fact that substituting these innovative units for old-fashioned versions significantly diminishes overheads in the form of man-hours. An additional massive advantage comes from the security that locking nuts provide, preventing construction firms from facing legal actions coming to pass from industrial accidents resulting from bolts that shear off or screws that come loose.
There are several situations in which only this equipment has been demonstrated to be satisfactory. One such situation is where a recurring external power is exerted in the identical rotational route as the bolt, or upright pertinent to the bolts, or perpendicularly in relation to bolts. Another instance can be when vibrations are continuously present. Severe vacillations in temperature will also be contended with by using these mechanisms.
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 development of this variety of nut was intended to end the inconvenience of broken bolts and loose screws. This type of assembly has the advantage of preventing any loss of axial force resulting from metal fatigue. Antique Japanese architecture stimulated the design of these wedge-shaped, twin nut assemblies to cheaply eradicate the problem of looseness in screws and create advanced workability.
Confidence and surety are granted by the certainty that such nuts never develop dangerous play. A lot of research into screw looseness has attested to this form of nut's excellence in upholding the original tightening strength. Evaluations done in situ by those working in construction have substantiated the fact that substituting these innovative units for old-fashioned versions significantly diminishes overheads in the form of man-hours. An additional massive advantage comes from the security that locking nuts provide, preventing construction firms from facing legal actions coming to pass from industrial accidents resulting from bolts that shear off or screws that come loose.
There are several situations in which only this equipment has been demonstrated to be satisfactory. One such situation is where a recurring external power is exerted in the identical rotational route as the bolt, or upright pertinent to the bolts, or perpendicularly in relation to bolts. Another instance can be when vibrations are continuously present. Severe vacillations in temperature will also be contended with by using these mechanisms.
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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