Pneumatic Wheel UN, inflatable wheel with axle Ø12 mm, size 4.00-8, 8PR, rim type F.M.Ł.K (single piece)

Pneumatic Wheel UN, inflatable wheel with axle Ø12 mm, size 4.00-8, 8PR, rim type F.M.Ł.K (single piece) is a ready-to-fit replacement wheel designed for light machinery and small trailers. The unit comes assembled with a pneumatic tyre mounted on a single-piece rim of F.M.Ł.K type and features a 12 mm axle bore. The tyre size 4.00-8 and 8 ply rating indicate a construction aimed at light to moderate load carrying while providing shock absorption and traction on typical outdoor surfaces.

Advantages

This pneumatic wheel delivers vibration damping and improved ride comfort compared with solid wheels thanks to its inflatable tyre construction. The assembled single-piece rim simplifies installation and alignment on a 12 mm axle, reducing fitment time. The 8PR rating enhances durability for repeated use on garden equipment, trolleys and small trailers, while the common 4.00-8 size ensures compatibility with many light-duty applications.

Suitable for

• Trolleys and handcarts used for material handling
• Small utility trailers and garden trailers
• Garden machinery such as lawn aerators, spreaders and small cultivators
• Replacement on small agricultural implements and light industrial equipment

Key specifications

• Tyre size: 4.00-8
• Ply rating: 8PR
• Axle bore diameter: 12 mm
• Rim type: single-piece F.M.Ł.K
• Unit: supplied as an assembled wheel (tyre mounted on rim)
• Intended use: pneumatic tyre for light-duty vehicles and equipment

How to use

Fit the assembled wheel onto a 12 mm axle, ensuring the axle passes fully through the bore and the wheel is seated correctly against any retaining washers or bearings. Secure with the appropriate fasteners or cotter pin as required by the equipment design. Inflate the tyre to the manufacturer-recommended pressure for the application, checking that the valve is accessible and the bead is seated evenly on the rim. Verify lateral runout and wheel alignment before placing the equipment into service.

Usage recommendations

Regularly inspect tyre pressure, tread condition and the rim for damage. Maintain proper inflation to preserve load capacity and to prevent accelerated wear; adjust pressure according to load and operating surface. Replace the wheel if the tyre shows severe cuts, sidewall damage, or if the rim is bent or cracked. Use appropriate protective equipment and follow the equipment manufacturer's instructions during fitting and maintenance.