Their products are based on leading wedgelocking technology and are recongnized for their ability to safely secure joints exposed to severe vibration and dynamic loads. Please refer to your local bossard eshop for the current. Split washer or spring lock washer a ring split at one point and bent into a helical shape. The locknut is mounted and torqued up the shaft forcing the lockwasher forward.
Spring lock washers myth from truth hill country engineering. Nord lock washer pdf nordlock washers secure bolted joints with tension instead of friction. Fastenal uses cookies to improve website user experience. Split lock washer carbon steel regular split lockwasher, asme b18. Assembly takes place without additional flat washers. The washer is designed to exert a load, partially deform, and lock a fastener in place. Crush washers are made of a soft metal such as aluminium or copper, and are used to seal fluid or gas connections such as those found in an internal. Split lock washers, tooth lock washers at instock fasteners the lowprice easytouse source for industrial and construction fasteners. Lock washers, when tightened to the required torque beneath an ordinary. Split lock helical spring washer size dimension table. Whittethiggins w07 bearing and shaft lockwasher, for use with whittethiggins n07, pn07 or pl07, replaces rose w07, skf w 07, standard w07, timken w07. We do not use cookies for the processing, collection, or storage of personal data under any circumstances. Hillman 2count 12in standard sae split lock washer.
At quality bearings online, many of our clients choose our standard tracked dhl service, with a delivery time of between 1 and 3 working days. Lock washers are used with the km, kml, 3074, 3015, 3072, 3016, hm, n and an series of lock nuts. Nord lock washers are easy and effective to use while ensuring structural security for applications exposed to vibration and dynamic loads. Installing the washers the preassembled washers are installed in pairs, cam face to cam face. Internal tooth lock washer prevents the nut from loosening on screw. Each batch is assigned a control number which ensures full traceability and confirms that the washer is a genuine nordlock article. An internal tab fits into the keyway of a shaft and an outer tab is bent over into one of the slots located on the outside diameter of the nut. Nordlock washers are rigorously tested in all steps of production to verify that the quality requirements are met. Trailer axle spindle hardware home for truck parts. Note that since the locking function is not based on increased friction, the untightening torque is generally lower than the tightening torque. A washer is a thin plate with a hole typically in the middle that is normally used to distribute the load of a threaded fastener, such as a bolt or nut. American national standard helical spring lock washers ansiasme b18.
Helical spring lock washers made of materials other than carbon steel are available in the regular series. Nord lock washers are rigorously tested in all steps of production to verify that the quality requirements are met. International trade commission publication 4277 november 2011 washington, dc 20436 helical spring lock washers from china and taiwan investigation nos. An ordinary nut with an ordinary washer, used to fasten a bolt on something that is subject to repetitive vibration say, a wheel axle or engine accessory would eventually vibrate loose. In some applications they are deployed along with a flat washer in order to distribute the load evenly without deforming the assembly that the. Form b square ends w040 127b bare steel w041 127b zinc plated w041zy 127b yellow zinc plated w140 127b hot dipped galvanized.
Looking for nordlock lock washer, bolt 1 34, steel 5ute9. An internal tooth lock washer has teeth that extend radially inward to bite into the bearing surface. Lock washers and lock nuts prevent this from happening. Different types of stainless steel internal teeth serrated lock washer steel serrated lock washer din 6797 and 6798. Standard locknut llc w 09 w00 series bearing lock washer 1. When using a nut, lock washer and bolt, should you also use a flat washer between the object and the lock washer. We continue to closely monitor covid19 and directives from authorities to remain in compliance. The term washer is often applied to various gasket types such as those used to seal the control valve in taps. Split lock washerss, search through thousands of split lock washerss in the fch database of surplus, odd lot, slowmoving and hard to find fasteners.
Page 1 table of contents page 2 important safety information page 3 when using the washer page 4 control panel page 5 page 6 features page 7 loading and using page 8 the washer page 9 page 10 before you call for service page 11 page 12 consumer. Split lock helical spring washer size dimension table chart. Lock washers are used with the km, kml, 3074, 3015, 3072, 3016, hm. Washers in comparison property class flat washer riplock contact washer ripped lock washer nordlock 12. Nasa reference publication 1228 1990 fastener design manual. The control number is printed on the package as well as on every washer pair, enabling full. Reusing nord lock nord lock washers can normally be reused. A split coil or teeth of the lock washer bite into the head of the fastener and against another flat surface. Other uses are as a spacer, spring belleville washer, wave washer, wear.
Tooth lock washer assortment 2 internal tooth lock washer 52 lock set washer 7 selflocking lock washer 84 serratted belleville washer 8 split lock washer 265 spring wave washer 3 material 561 alloy steel 41. Split lock helical spring washer size dimension table chart ansiasme b18. This causes the washer to exert a spring force between the fasteners head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to. Each batch is assigned a control number which ensures full traceability and confirms that the washer is a genuine nord lock article. Covid19 we are open and continuing operations as a designated essential supplier. Internal tooth lock washer, internal locked tooth washer, star washer. Nordlock lock washer, bolt 58, steel, pk4 12w4621537. Regular, heavy, extra duty and hicollar as given below. Split lock washers, tooth lock washers, helical spring.
Nordlock has been focusing on providing the worlds most effective bolt securing system for over 30 years. Untightening nord lock washers is as simple as tightening. Lock washers can be used with a standard flat washer to provide uniform bearing surface. Also known as spring lock washers, these split lock washers provide a positive locking action. Nordlock washers are easy and effective to use while ensuring structural security for applications exposed to vibration and dynamic loads. If you would like to prevent our website from using cookies or remove existing ones, you will need to adjust the cookies settings in your browser. Helical spring lock washers separating myth from truth. Therefore it is not possible to measure offtorque as verification of locking function. Mulitple styles, materials and sizes of steel mechanical lock washers for industrial, commercial and residential applications. Nord lock has been focusing on providing the worlds most effective bolt securing system for over 30 years. Spring like takeup compensates for loosening caused by slight material wear. Din 25201 nordlock washer dimension fasteners china.
If the nut loosens a fraction the edge should come up a touch and bite into the nut on one side and the base material on the otherbut i dont believe that either. It is the result of charters respected team of employees, each persons dedication to continuous improvement and an entrepreneurial spirit that thrives within the charter family. The upper washer is locked to the nut or bolt head by the serrations. I have seen it done a million times that way but it seems the flat washer defeats the. The system is comprised of a pair of washers with cams on one side and radial teeth on. When the fastener is untightened, sliding will occur between the two washers. Wedge locking washer carbon stl zinc flake coated through hardened m10 20 glued pairspack clipsandfasteners inc 50 25 pair 516 8mm nord lock vibration proof lock washers hilitchi 300pcs 304 stainless steel external tooth star lock washers assortment kit included. Lock washers, locknuts, jam nuts, and threadlocking fluid are ways to prevent vibration from loosening a bolted joint. Ansi and metric hardware resources tables and references. With the use of ripp lock lock washers which only allow a relative movement between screw head and washer, defined friction values and thus defined. Din 127 b spring lock washers, form b equivalent norms. Nordlock washers and nordlocks production facilities.
Tightening tighten nord lock washers with standard tools according. Adapter sleeve shaft lock washers, mounted bearing type pdf adaptersleeveshaftlockwashersmountedbearingtype. Nordlock washers secure bolted joints with tension instead of friction. Looking for nordlock lock washer, bolt 58, steel, pk4 12w462. Uboltit is a leading distributor of highquality wedge lock washers from the top manufacturers in the industry, with over 25 years of experience supplying washer solutions for industrial applications. Specifications for external tooth lock washers asme b18. Nordlock washers nordlock international ab pdf catalogs. When to use flat washers and lock washers engineers edge. Since the nordlock group began operations in 1982 we have focused on providing the worlds most effective bolt securing system. Lock washer definition of lock washer by the free dictionary. Wedge locking washer carbon stl zinc flake coated through hardened m10 20 glued pairspack clipsandfasteners inc 50 25 pair 516 8mm nord lock vibration proof lock washers hilitchi 300pcs 304 stainless steel external tooth star lock washers assortment kit. Split lock washers by material from steel split lock washerss to rubber, buna n etc.
Available in steel, stainless steel, copper and brass. Lock washers are a very simple but effective and reliable method of fastening. In my opinion, its ok to use the flat washer beneath the bolt head for whatever reason you might want to do that, but i feel the lock washer should only contact between the nut and the parent item that is being bolted. It is the result of charters respected team of employees, each persons dedication to continuous improvement and an entrepreneurial spirit that thrives within the charter. Rick, im with you, i believe using the 2 together negates the locking effect.
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