Locating pins, rest pads

Blohm offers industry a wide range of standardised pins and pads. Pins and pads play a decisive role in many technical applications, especially in the fastening, alignment and stabilisation of components.

A locating pin is a mechanical alignment element that joins two or more components together. The cylindrical part is usually a threadless shaft. The pins can have a thread at one end to provide attachment to another component. At the other end, a locating or positioning element is incorporated that precisely fits into a reamed hole in another component. This results in many production variants that can be used in a variety of ways. Production is always focused on the highest quality.

On the other hand, rest pads are mechanical elements that are intended for supporting workpices and other components. Rest pads are mostly, but not always cylindrical. One end may be a threadless pin or an internal or external thread. The other end is usually a flat or domed support face. Rest pads are mainly used to support and stabilise heavy workpieces or other components. Sometimes they may be called jack screws or support pins.

Locating pins are used to join and align components. The pins connect individual mechanical elements and are crucial for load distribution. A locating pin is also important for aligning or fastening components.
A rest pad on the other hand, is designed to carry loads and support components. Some rest pads have no threads or other fastening elements. These are purely for support. Others have an internal or external thread one end and a flat support face the other end. These are used for support but can also be employed as equipment feet.

The main difference between a locating pin and a rest pad is the use they are put to: While locating pins are used to align and join individual components, rest pads are used to support components or raise them off a work surface.

Locating pins are mainly used in industry and, due to the large number of application possibilities are offered in a wide variety of types.
They offer a sure and stable alignment between two parts. The thread on one end enables the locating pin to be firmly screwed into one of the components. This stability enables the locating pins to precisely align the various components during assembly. In many applications, locating pins are used to transmit torques or forces between the connected components.

In general, locating pins are used to create a secure, stable and precise connection between components and therefore make a significant contribution to the functionality and integrity of machines, devices and structures.

Locating pins are used in many mechanical processes, especially where components are to be assembled and stabilised. The most common application fields are:

• In machine construction for positioning and joining machine and plant components
  
  
• In construction branches for the general fastening of structural elements 
  
  
• In automotive industries to stabilise components such as motors and gear boxes
  
  
• In electronics to connect and stabilise switch boxes or to safely install electronic components

The choice of material for each application is crucial. At Blohm, the use of high-quality materials is a priority for the performance of machining operations with its products. Durability is then ensured. The range includes pins made from stainless steel and tool steel.

Blohm offers a wide range of locating pins that provides solutions for every requirement.
An example of how comprehensive the range is are the ball-end locating pins. The use of ball-end locating pins simplifies the assembly process, as they are designed to ease insertion into the corresponding part.
If a part being connected is at an angle, or the forces acting on it are not aligned with the axis of the pin, the ball-end locating pin minimises the jamming effect, as is also experienced when closing a drawer.

Various models with different shape variations are produced to suit requirements and fit:

• Locating pins with ball-end Form A
  
  
• Locating pins with ball-end Form B
  
  
• Locating pins with flattened ball-end Form C
  
  
• Locating pins with flattened ball-end Form D
  
  

The DIN 6321 locating pins are another example showing how wide the Blohm range is. Two types are available. The Form B versions are used to e.g. position a workpiece by being inserted into a reamed hole in the workpiece. The flattened Form C locating pins enable tolerances in bore pitches to be bridged. Form C can also be used to secure the part to be positioned in one direction only. Such special application areas are decisive for the wide range of products. No matter what challenge you have - Blohm has the appropriate answer.

The range also includes locating pins with internal threads that, when used in combination with the hardened locating bushes B0182 enable precise, low-wear and rapid part changes. These locating bushes are hardened and ground and are usually used on machines with sliding or rotating shafts.

The main function of a rest pad is to support and distribute loads. They act as support elements for better and targeted distribution of the weight of components or structures. This ensures the structural integrity of components and constructions.
The rest pads provide additional stability when used in combination with other elements. They can sometimes also be used to align components and thus bring them into the correct position.

The Blohm range includes a wide selection of rest pads. Depending on the type, these can also be called jack screws or support bolts. They are mostly made from hardened steel or tool steel. The choice of material depends heavily on the intended use. Some special adaptations can be, e.g: 

• By rest pads: If more than one rest pad is used, the support height can be reground. Rest pads can also be used as feet for jigs and fixtures.
  
  
• By rest pads: can also be used as stops and thrust pads in fixtures and toolmaking.
  
  
• By rest pads with positioning pin: studs or grub screws can be screwed and glued into the tapped hole D to make a support with external thread.
  
  
• By rest pads: special pads made of brass are also available
  
  
• By pin form rest pads with external thread and pin form rest pads with internal thread: the pin form of the rest pad also enables use with components with constricted support points.

Blohm also offers positioning feet in various designs. Positioning feet are used as supports, stops and thrust pads for fixtures and general machine and appliance construction.
Blohm is your reliable partner for standardised parts and workpieces, offering quality products to the highest standards. The entire Blohm team at your disposal to attend to your specific requirements. Please contact us if you have any special wishes, or questions about our product range.