Demountable bronze plated guide bushes DB21 - DIN 9831
The DB21 demountable bronze plated guide bushe guides cutting tools in a precise and stable position.
![](/_next/image?url=https%3A%2F%2Fapi.amdl-eu.com%2Fuploads%2Fmedia%2Fdemountable-bronze-plated-guide-bushes-db21-din-9831.png&w=1920&q=75)
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Specifications
Material: 16MnCr5 - Case-hardened
Standard : ISO 9448
Dimensions :
- Diameter : from 19 to 80mm
- Length : from 28 to 148mm
Available with short, normal and long shoulders.
Working speed : 0 to 45m/min
Type of mounting : Clamps and screws fixing supplied with the bushe.
The Easyfit system facilitate the bushe mounting in the bore making it quicker to adjust and install
Hardness : 60 à 64 HRC for maximum wear resistance and durability. Designed for prolonged use thanks to its robust construction and high hardness.
Treatment : Case hardening and tempering for optimum surface hardness. Bronze inserted
Type of lubrification : Lubrication scratches with grease nipple.
Benefits :
- Good resistance to lateral forces
- High working speed thanks to the bronze plating due to its low coefficient of friction.
- Benefit from the rigidity of steel
Available in 3 tolerance classes for precise matching with the guide bushes according to the need.
Conception : Modular design for an easy integration and simplified maintenance.
- Machining
- Grinding / honing
- Grooving
- Treatment
Target application :
Ideal for press tools, injection moulds or any other assembly requiring precise, reliable guidance.
Recommendation for use :
- Lubrification : Make sure that the bushe is always well lubricated to ensure its efficiency and lifespan. Lubrication is provided by the grease nipple and the grooves inside the bushe.
- Mounting : The bushe is fitted using the clamps and screws directly in the tool plate. It is important to ensure that the pillar is correctly fitted to guarantee the parrallelism with the guide bushes and preventing premature wear.
- Do not exceed working speed. Compliance with working speeds ensures the integrity of the tool and bushe.
- Environment : Do not store or use the bushe in a corrosive environment.
Maintenance recommendations :
- Regular cleaning
- Regular inspection
- Load control
To order you need to indicate :
- The diameter
- The lenght
Example : DB21.032.045
Technical data
3D Model
Plan
D1 : Pillar diameter
D2 : Bushe press-fit diameter
D3 : Bushe external diameter
D4 : Bushe collar diameter
E : Press-fit length
F : Guiding length
h : Collar thickness
![Demountable bronze plated guide bushes DB21 - DIN 9831 drawing. These guide bushess, are used with guide pillars, to design guide systems, to be integrated into the construction of press tools](/_next/image?url=https%3A%2F%2Fapi.amdl-eu.com%2Fuploads%2Fmedia%2Fdemountable-bronze-plated-guide-bushes-db21-din-9831-plan.png&w=1080&q=75)