Machinery Shims for Accurate Alignment, Tolerance Compensation, and Load Control Across Industries

Machinery shims are widely used to solve alignment, levelling, and fitment challenges across industrial applications. They enable fast and accurate adjustment, reducing setup time and minimising the need for labour-intensive rework. By compensating for manufacturing tolerances, industrial shims ensure that components fit together precisely while maintaining the design intent.

Shims also allow controlled preload on bearings and other moving parts, supporting smooth operation and extending service life. Due to their versatility, precision, and cost-effectiveness, machinery shims play a vital role in maintaining quality, safety, and efficiency in modern manufacturing.

Industry Considerations in Shimming

Precision assemblies are often affected by tolerance stack-up. As manufacturing variations accumulate, shimming remains a proven method to achieve proper fit and alignment.

However, selecting and implementing the right shimming approach requires careful consideration. Processes such as grinding shim plates can add time and equipment requirements, while stacking thin industrial shims may increase the risk of contamination or improper combinations if not managed correctly.

The optimal shimming strategy depends on load conditions, handling methods, and available resources. Because every application is different, achieving reliable, long-term precision often requires expert evaluation.

Our machinery shim solutions provide a streamlined approach to accurate adjustment, reducing unnecessary process complexity while supporting consistent performance and equipment lifespan.

Shimming Solutions for Precision Tolerance Control

Impact of Poor Fit Across Operations

  • Assembly: increased adjustments and production delays
  • Maintenance: frequent breakdowns and extended downtime
  • Purchasing: higher costs from unplanned or emergency procurement
  • Quality Control: increased inspection failures and rework
  • Management: missed deadlines and rising operational expenses
Complex Machines that demand precision fit - satellite dish, turbofan, aircraft, Gears etc
precision shims in different industries - Steel Rolling, Aerospace Structures, Transmission system, Space Technology etc

Key Industrial Applications for Machinery Shims

Our machinery shims support a wide range of industries where accurate fit, alignment, and load control are critical.

  • Steel rolling equipment: tapered roller bearing positioning and gearbox shimming with steel shims for leveling under high loads
  • Bearing assemblies: preload control and precise bearing alignment
  • Gearboxes: gear backlash adjustment and bearing preload control
  • Drive technologies: axial play compensation and component alignment using industrial shims
  • Aerospace structures: gap filling without stressing lightweight frames, using certified aerospace shims
  • Fans and turbines: axial shaft play management and thermal expansion control
  • Heavy equipment: frame and drivetrain alignment in rugged operating conditions
  • Defence sector: drive mechanisms and fuel actuator valve adjustment
  • Space technology: precision setup of vertical and structural assemblies
  • Cabin interiors: installation of cargo systems and onboard equipment
  • Marine industry: gearbox shimming for propulsion systems and cranes

Industries We Serve

Precision machinery shim solutions aligned with industry-specific requirements.

Aerospace Shims

In aviation, gap management is achieved using aerospace shims to ensure the safe and reliable operation of aeroplanes and helicopters. These applications must meet the highest aerospace standards. Our metallic and composite aerospace shims play a critical role in aircraft construction by ensuring accurate tolerance compensation for key components. We supply Laminum® peelable shims as the primary solution for aerospace applications, enabling precise, incremental adjustment during aircraft assembly and maintenance. Lamisol® ground and solid shims are also supplied where fixed thicknesses are required.

Our solutions support manufacturers in addressing complex aviation challenges.

Our metallic and composite shims play a critical role in aircraft construction by ensuring accurate tolerance compensation for key components.

We supply Laminum® peelable shims as the dominant solution for aerospace applications, enabling precise, incremental adjustment during aircraft assembly and maintenance. Lamisol® ground and solid shims are also supplied where fixed thicknesses are required.

Machinery Shims for Mechanical Drive Systems

Our industrial shims play a crucial role in enhancing design safety, reliability, and long-term performance by offering flexible tolerance management for transmissions and related systems. With Laminum® peelable shims, you can make accurate adjustments in gearwheel drives without the need for machining. This ensures that the gap between gear teeth is accurately set and shaft play is corrected, enabling quick and cost-effective repairs while minimising downtime.

Industrial Shims for Railways

In railway drive systems and bogies, industrial shims are essential for setting the correct bearing preload. They also ensure smooth and reliable gear operation under demanding service conditions. We manufacture machinery shims and adjustment components for critical railway applications. The precision parts we produce support the safe and efficient operation of trains and contribute to the long-term reliability of rail vehicles and infrastructure. For railway applications, we predominantly provide Laminum® peelable shims for accurate alignment and adjustment during installation and maintenance. Lamisol® ground and solid shims are used where permanent, load-bearing spacing is required.We manufacture shims and adjustment components for critical railway applications.

The precision parts we produce support the safe and efficient operation of trains and contribute to the long-term reliability of rail vehicles and infrastructure.

For railway applications, we predominantly provide Laminum® peelable shims for accurate alignment and adjustment during installation and maintenance. Lamisol® ground and solid shims are used where permanent, load-bearing spacing is required.

Machinery Shims for General Machinery

Laminum® shims provide unmatched precision for alignment tasks in general machinery applications. Height and gap compensation can be achieved without machining with an accuracy down to 0.01 mm. Using Laminum® shims and an M-Tech® Peeling File, firmly mounted drilling units can be aligned with drill bushings in one minute, an operation that would normally require milling. Whether made from aluminium, brass, composite materials, unalloyed steel, or stainless steel, Laminum® machinery shims are a flexible solution that reduces processing steps and ensures long-term machine accuracy.

Alignment Shims for Mechanical and Plant Engineering

Motors and pumps must be aligned correctly, and M-Tech® alignment shims make that straightforward. During final assembly, height differences between electric motors and pumps are compensated on site by stacking alignment shims to the necessary thickness. This eliminates the need for machining equipment while allowing exact adjustments even in remote installation sites. M-Tech® solid shims enhance system availability, reduce wear, and extend maintenance intervals by enabling accurate height and shaft-centre alignment. For steel shims for leveling applications in plant engineering, our solid shim range provides a reliable, permanent solution.

During final assembly, height differences between electric motors and pumps are compensated on-site by simply stacking the shims to the necessary thickness.

As a result, this process eliminates the need for machining equipment while allowing exact adjustments even in remote installation sites.

M-Tech® Solid shims enhance system availability, reduce wear, and extend maintenance intervals by enabling accurate height and shaft-centre alignment.

Industrial Shims for Printing Machinery

Printing machinery relies on precise tolerance control for stable, high-precision operation. For compensation of axial shaft play and setting of proper clearances in transmission components, Laminum® peelable adjusting discs and rings can be used. Lamivario® edge-connected shims are designed for faster, easier use in printing machinery. Their edge-connected, stacked design allows individual layers to be removed by hand while the remaining stack stays stable. This enables step-by-step clearance adjustment, reduces setup time, and is especially suitable for series production, ensuring precise and consistent machine operation.

Frequently Asked Questions About Machinery Shims and Applications

What are machinery shims used for?

Machinery shims are thin precision spacers used to fill gaps, correct alignment, control bearing preload, and compensate for manufacturing tolerances in mechanical assemblies. They are applied across a wide range of industries including aerospace, railways, drive systems, general machinery, and plant engineering, anywhere that components must fit together accurately without additional machining. View our full product range.

Shim Solution supplies peelable Laminum® laminated shims, high-precision Laminum® HP ultra thin shims, Lamivario® reusable edge-connected shims, Lamisol® solid shims, and a full range of M-Tech® standard solutions including alignment shims, shim rings, ball bearing shims, and slotted motor shims.Peelable shim stock refers to the raw laminated material from which peelable shims are cut or formed. Shim Solution supplies peelable shim stock in multiple base materials including stainless steel, mild steel, wrought aluminium, brass, and composites, each available in three foil thickness options.

Alignment shims are flat spacer components placed beneath motor feet, pump bases, or mounting surfaces to correct height differences and bring shafts into precise alignment. M-Tech® alignment shims from Shim Solution are specifically designed for on-site motor and pump alignment during final assembly, eliminating the need for machining equipment. Learn more about M-Tech® alignment shims.

Aerospace shims are precision spacer components used in aircraft construction to fill structural gaps, compensate for manufacturing tolerances, and ensure that components meet strict dimensional requirements without placing stress on lightweight frames. Shim Solution supplies aerospace shims that comply with aviation quality standards, including both metallic and composite options, predominantly from the Laminum® peelable shim range and Lamisol® solid shims.

Steel shims for leveling are solid metal spacers used to raise, support, or level machinery, equipment bases, structural frames, and mounting surfaces. They are particularly common in plant engineering, heavy equipment installation, and steel rolling applications. Shim Solution’s Lamisol® solid shims and M-Tech® alignment shims are widely used as steel shims for leveling in these environments.

Industrial shims reduce costs in several ways. They eliminate the need for re-machining components when tolerances are out of range, reduce assembly time by enabling on-site adjustment, lower the risk of inspection failures by ensuring accurate fits, and extend the service life of bearings and other moving parts by controlling preload correctly. The right industrial shims reduce both direct production costs and indirect costs from downtime and rework.

For railway drive systems and bogies, Shim Solution predominantly supplies Laminum® peelable shims for on-site alignment and adjustment during installation and maintenance. Where permanent, load-bearing spacing is required, Lamisol® ground and solid shims are used. The correct choice depends on whether fixed or adjustable thickness is needed for the specific bearing or gear application.

Yes. Shim Solution manufactures custom machinery shims to customer-supplied drawings in DXF, PDF, CAD, or STP format. Materials include aluminium, brass, composite materials, unalloyed steel, and stainless steel. Submit your drawings for an expert review and personalised quotation.

Contact Information

For product selection, pricing, or sales assistance in your region, contact Shim Solution.

Michael Köstner - Technical Sales - Management - Shim Solution

Technical Sales - Management

Michael Köstner
Tel. +49 6074 4099 34
E-mail

Nadine Berz - Technical Sales - Shim Solution

Technical Sales

Nadine Berz
Tel. +49 6074 4099 17
E-mail

Technical Sales - Thorsten Schäfer

Technical Sales

Thorsten Schäfer
Tel. +49 6074 4099 66
E-mail