Incorrect bearing mounting is one of the leading causes of premature bearing failure. Applying force through rolling elements or raceways using hammers, punches, or improvised tools can create invisible damage that significantly reduces bearing service life.

SKF Bearing Fitting Tool Kits (TMFT Series) are specifically designed to eliminate these risks by ensuring that mounting force is applied only to the interference-fit bearing ring, providing a safe, controlled, and professional installation process.

One Tool Kit for Hundreds of Bearing Sizes

The SKF TMFT 36 Bearing Fitting Tool Kit includes:

The kit is suitable for mounting bearings with:

• Bore diameters from 10 mm to 55 mm
• Outside diameters from 26 mm to 120 mm

With 36 interchangeable impact rings, the TMFT 36 can accommodate more than 400 standard bearing sizes, making it an ideal solution for maintenance workshops and industrial service departments.

Engineered Impact Ring System Protects Bearing Integrity

The core of the TMFT series is SKF's precision-engineered Impact Ring System.

Unlike conventional installation methods, the impact ring matches the bearing dimensions precisely, allowing installation force to be transferred directly to the ring with the interference fit.

• When mounting onto a shaft, force is applied only to the inner ring.
• When mounting into a housing, force is applied only to the outer ring.

This prevents force transmission through rolling elements, minimizing the risk of raceway indentation, internal damage, and premature bearing failure.

Durable Components Designed for Repeated Industrial Use

The impact rings and sleeves are manufactured from high-impact resistant materials, providing excellent durability under repeated workshop use.

They can also be used under a mechanical press when required.

Each ring is permanently marked for quick identification, allowing technicians to select the correct size without additional measurement.

The included dead-blow hammer features dual nylon striking faces and an internal shot-filled design that reduces rebound, delivering more effective impact while protecting both the tool and installed components.

More Than a Bearing Installation Tool

Although designed primarily for rolling bearings, the TMFT series can also be used for installing many other interference-fit components, including:

• Bushings
• Oil seals
• Pulleys
• Sleeves
• Gears
• Couplings

This versatility makes the kit a practical mechanical assembly solution rather than a dedicated bearing tool, reducing the number of specialized tools required in maintenance departments.

TMFT 24 vs. TMFT 36

For facilities maintaining multiple machine types and bearing sizes, the TMFT 36 offers significantly broader coverage and greater long-term value.

Typical Applications

SKF Bearing Fitting Tool Kits are widely used across industrial maintenance and equipment assembly operations, including:

• Electric motor repair
• Gearbox maintenance
• Pump and fan installation
• Conveyor systems
• Industrial automation equipment
• Packaging machinery
• Food processing equipment
• Mining and steel plants
• OEM manufacturing and assembly workshops

The kit is particularly suitable for facilities that routinely install standard bearing series such as 6000, 6200, 6300, 7200, NU, NJ, and many other metric rolling bearings.

Key Advantages

Compared with conventional installation methods using hammers or fabricated sleeves, SKF Bearing Fitting Tool Kits provide several important advantages:

• 36 precision-machined impact rings covering hundreds of standard bearing sizes
• Controlled force transmission directly to the interference-fit ring, preventing damage to rolling elements and raceways
• Suitable for shaft, housing, and blind-hole mounting applications
• High-impact resistant components designed for long service life
• Can also be used for mounting bushings, seals, pulleys, and other mechanical components
• Compact carrying case for easy storage and field service

For maintenance teams, OEM manufacturers, and industrial MRO operations, the SKF TMFT Series represents a professional and standardized bearing installation solution that improves assembly quality while reducing the risk of installation-related bearing failures.

If you are located in Mainland China, you may also purchase SKF Bearing Fitting Tool Kits and related maintenance products through our trusted partner, MRO818.com, which provides professional industrial MRO sourcing and technical support services for local customers.