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Nortlock Washer with Railway Vehicle Adoption Examples [NETIS Registered]

Nortlock Washer with Railway Vehicle Adoption Examples [NETIS Registered]

Numerous achievements in all industries! Wedge lock products that physically prevent bolt loosening.

The "Nortlock Washer" employs a "wedge lock mechanism" and is a loosening prevention product that does not rely on friction. It protects bolt connections from loosening even in the most severe vibration environments, ensuring solid safety. It is used in various bolt connections in the railway industry worldwide, including bogies, couplers, brake systems, equipment, track maintenance, and sleepers. Its high quality and safety have been recognized, and it has been registered in the database "NETIS" (New Technology Information Sharing System) operated by the Ministry of Land, Infrastructure, Transport and Tourism. (Registration number: KKK-190002-A) 【Features】 ■ Loosening prevention that does not rely on friction ■ Wedge lock mechanism ■ Many approvals and certifications, primarily in Europe ■ Sizes (Steel): M3 to M130 ■ Sizes (SUS): M3 to 80 *For more details, please refer to the PDF document or feel free to contact us.

  • Work tools
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[Maintenance Improvement] Significantly improved work time and reliability regarding bolt fastening!

[Maintenance Improvement] Significantly improved work time and reliability regarding bolt fastening!

In most cases, it is possible to significantly improve when bolts "loosen," "break," or when "working time" and "workload" are involved.

In various plant maintenance situations, the removal and re-tightening of bolts is rarely the "goal." Nevertheless, the reality is that addressing issues such as breakage and loosening, as well as the removal and re-tightening process itself, requires a significant amount of time and cost. ■ Events where improvements can be expected (examples) - Loosening of bolts and nuts - Fatigue failure of bolts or breakage for reasons that are not well understood - Reduction of time for bolt removal/re-tightening - A reliable method is needed for fastening parts that require high precision in axial force - Measures to eliminate the need for cranes in the removal/re-tightening of large-diameter bolts - Significant reduction in work time for the removal/re-tightening of large-diameter bolts - Significant reduction in physical strain from the removal/re-tightening of large-diameter bolts - Eradication of galling and seizing - Play in movable parts (due to wear in pin holes) - Elimination of the need for complete part replacement due to wear in movable parts - Elimination of costly service requests due to wear in movable parts - Elimination of the need for bushing replacement due to wear in movable parts Most of the above events can be improved in nearly all cases. For more details, please download the catalog or contact us.

  • Safety and consumables
  • Work tools
  • Bridge Materials

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Nord-Lock SC Washer

Nord-Lock SC Washer

Washers compatible with high-strength bolts for construction used in steel structures and bridges in Europe!

This product is a Nord-Lock washer specifically designed for high-strength bolts used in construction, easily replaceable with flat washers as specified in EN 14399-6. It is widely used in structural steelwork and bridge construction in many countries where European standards apply, physically preventing bolt loosening due to vibrations from vehicle traffic and other sources. The chamfering treatment on the inner diameter is applied to both sides of the two-piece set, eliminating the risk of incorrect assembly orientation. 【Features】 ■ Physically prevents rotational loosening in steel structures ■ Product design and CE marking specialized for HV or HR sets ■ Allows for a highly reliable fastening design even with short fastening lengths ■ Provides the same effect regardless of the skill or experience of the operator ■ Usable in a wide temperature range from -50°C to 150°C *For more details, please refer to the PDF document or feel free to contact us.

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[Nortlock Product Adoption Case] Tokai Railway Company (JR Tokai)

[Nortlock Product Adoption Case] Tokai Railway Company (JR Tokai)

No more lock nuts that have been used hundreds and thousands of times! An example that also contributed to vehicle weight reduction.

We would like to introduce a case study of Tokai Railway Company (JR Tokai), which has adopted Nord-Lock products. The company has relied on skilled workers who meticulously maintain and inspect their systems day and night to ensure safety, which required a tremendous amount of effort and time. To address this, they adopted our "Nord-Lock Washer." This product has a mechanism that prevents loosening and rotation, even in extremely harsh vibration environments, significantly advancing this long-standing challenge. 【Case Overview】 ■ Customer: Tokai Railway Company (JR Tokai) ■ Product: Shinkansen N700 Series Vehicles ■ Adopted Product: Nord-Lock Washer *For more details, please refer to the PDF document or feel free to contact us.

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[Nortlock Product Adoption Case] Coatec Inc.

[Nortlock Product Adoption Case] Coatec Inc.

To respond to the customer's wishes! A case where the same fastening precision can be easily achieved regardless of who performs the work.

We would like to introduce a case study of Coretech Co., Ltd., which adopted Nord-Lock products. The company was using double nuts to secure tie rods that are constantly exposed to the impact and load of presses, but this method led to variations in effectiveness depending on the operator. Moreover, when it comes to larger sizes like the tie rods of a press machine, the task of tightening the nuts itself was very challenging and time-consuming. Therefore, they adopted our "Superbolt." As a result, concerns about maintenance after product delivery were eliminated, providing significant peace of mind psychologically. [Case Overview] ■ Customer: Coretech Co., Ltd. ■ Adopted Product: Superbolt *For more details, please refer to the PDF document or feel free to contact us.

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[Complimentary Guidebook Available] Thorough explanation of various bolt loosening prevention methods!

[Complimentary Guidebook Available] Thorough explanation of various bolt loosening prevention methods!

This booklet explains the causes of bolt loosening and serves as a guide to understanding proper fastening methods.

The publication includes challenges of bolt fastening, factors causing axial force loss, methods to prevent loosening of bolt fastenings, and guidance for selecting loosening prevention methods. It compares and evaluates general methods for preventing loosening of bolt fastenings over the service life of assemblies, allowing you to choose appropriate fastening methods to solve issues related to bolt fastening. 【Contents (excerpt)】 ■ Why do bolts loosen? ■ Challenges of bolt fastening ■ Factors causing axial force loss ■ Guidance for selecting loosening prevention methods ■ Loosening prevention methods for bolts by product ■ Corrosion countermeasures for metals >>>NEWS<<< Nord-Lock Japan will exhibit at the "Plant Maintenance Show" held from July 24 to 26. If you plan to attend or are interested, please stop by our booth (M4-176).

  • Road signs and road accessories

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[Nortlock Product Adoption Case] Sodick Co., Ltd.

[Nortlock Product Adoption Case] Sodick Co., Ltd.

Solving injection molding machine problems with super bolts! A case of achieving optimal bolt fastening.

We would like to introduce a case study of Sodick Co., Ltd., which adopted Nord-Lock products. Our engineers examined the design of Sodick's bolt fastening components and noticed that the tie rod bolts of their injection molding machines were being fastened using traditional methods. As a result, we adopted our "Superbolt." Consequently, this product resolved the issues with the injection molding machines. We received reports that "the customer's site is operating quickly and smoothly, and they are satisfied." [Case Overview] ■ Customer: Sodick Co., Ltd. ■ Adopted Product: Superbolt *For more details, please refer to the PDF document or feel free to contact us.

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Super Bolt GT Series

Super Bolt GT Series

Delivering the appropriate axial force more easily and quickly. Super Bolt GT Series.

The GT tensioner is ideal for medium to high-strength studs and bolts. It is also suitable for use in harsh environments, allowing for the safe and easy installation of high axial forces and can be used with various large-diameter bolts. The small jack bolt at the top of the product can be installed and removed with hand tools, enabling consistent axial force regardless of the operator's skill level, thus providing high reproducibility. Additionally, we maintain stock domestically, allowing for quick delivery.

  • Bridge Construction
  • Steel bar construction

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<NETIS Registered Product> Powerful Locking Washer 'Nord-Lock Washer'

<NETIS Registered Product> Powerful Locking Washer 'Nord-Lock Washer'

NETIS registered product. Simply insert it into existing bolts and nuts and tighten to achieve a powerful anti-loosening effect. It is resistant to vibration and impact, reducing maintenance frequency.

The "Nortlock Washer" is a product that exhibits a powerful anti-loosening effect simply by being placed under a bolt and nut and tightened once. By inserting a pair of washers with a cam surface and radial rib surface, the axial force increases when loosening forces are applied, achieving anti-loosening without relying on friction. It is resistant to vibration and impact, providing anti-loosening effects over a long period. 【Features】 ■ No issues when used in conjunction with hot-dip galvanized coatings ■ No need for double nuts; simply insert into a single nut ■ Allows for easy and reliable fastening regardless of the operator's skill level ■ Suitable for maintenance in difficult locations such as high or narrow spaces ■ NETIS registered product (KKK-190002-A) *Documentation introducing product features can be viewed from "Download." (The documentation also includes links to case study pages.) *Feel free to contact us for inquiries about product samples and more.

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Realization of aging countermeasures: Locking washer 'Nord-Lock Washer'

Realization of aging countermeasures: Locking washer 'Nord-Lock Washer'

Are you troubled by loose bolts? You can feel the effect in just one second of use.

The "Nortlock Washer" is a vibration and shock-resistant locking washer. It is a simple task of placing it under bolts or nuts and tightening, which shortens construction and maintenance time. It provides the same effect regardless of who tightens it. Using this product helps to address aging issues. 【Features】 ■ NETIS registered product "KKK-190002-A" ■ A locking mechanism that physically suppresses loosening (patented structure) ■ Vibration and shock-resistant locking washer ■ Simple operation (just place it under bolts or nuts and tighten) ■ Reduces construction and maintenance time ■ Same effect regardless of who tightens it *For more details, please refer to the PDF document or feel free to contact us. *Inquiries about product samples are also welcome.

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Measures against bolt loosening at construction sites! Nord-Lock washers.

Measures against bolt loosening at construction sites! Nord-Lock washers.

Ensuring the safety of users of temporary products at construction sites. Addressing bolt loosening to prevent accidents. *Case studies available.

Many structures, as well as the construction of those structures, use countless bolts. Naturally, measures to prevent bolt loosening are essential in all situations. "Nortlock Washers" require no complicated work; simply tightening the bolts effectively prevents loosening. Nortlock Japan will provide full support to ensure you can use our products with confidence. Let us work together to protect the safety of society. 【Features】 ■ High anti-loosening effect that physically draws out the axial force of the bolt ■ Just tighten the bolts and nuts ■ The same high anti-loosening effect regardless of who tightens them ■ Cost reduction through shortened construction time due to simple fastening work ■ Loosening can be checked with alignment mark checks, allowing for maintenance cost reduction *For more details, please refer to the PDF materials or feel free to contact us.

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