Sliding Gate Wheel 140mm, 20mm Round Track, Bracket Mount

A large 140mm wheel in a long bracket, for sliding gates on 20mm round ground track. This is the largest standard bracket wheel in the range, listed at 140mm and given as 138mm on the data sheet. A wheel this size rolls more easily over grit and small lips in the track than a small one. It arrives in a pressed steel bracket 185mm long and 42mm wide, with two 12mm wide slots at 155mm centres for bolting up to the bottom rail, so check that your rail is wide enough before ordering. The price shown is for one wheel with its bracket, with a minimum order of 4.

Important: This wheel runs on 20mm diameter round bar track only. It will not run on V section track or in a cantilever track. Data sheet sizes are a guide; components can vary slightly.

Why this wheel works

A half round groove on a round bar. The groove cups the top of a 20mm round bar and spreads the load along the contact, which keeps the gate centred as it travels and gives a quieter roll than a flat wheel.

A simple running gear. This line is not listed as double bearing, which keeps the price down for a gate opened by hand a few times a day. Choose a double bearing wheel if the gate is motor driven or in constant use.

Size that helps over grit and gaps. A bigger wheel crosses small obstructions with less effort, so a 138mm wheel suits gates where the track collects stone and dirt. The penalty is height: the bracket stands 150mm from its top to the base of the wheel, so the rail sits higher than on the 100mm size.

Where it is used

Larger steel sliding gates on 20mm round bar at factories, depots and yards, where the wheel needs to shrug off grit and the rail can take a bracket 42mm wide. It is for wheel on track only, not for cantilever gates or overhead hanging.

Specifications

Choosing the right wheel

The double bearing version of this wheel has the same 138mm wheel and bracket footprint, with a 30mm wide wheel against 25mm here and two bearings in the hub. Pick that one for a gate that moves all day or runs on a motor, and pick this one for a gate opened by hand a few times a day. If you do not need this height, the 120mm double bearing wheel is shorter at 127mm overall. If the wheel has to sit inside the rail, the 138mm internal wheel suits the same track.

See all gate wheels and sliding gate track.

Fitting and care

Mark the wheel positions on the bottom rail so the two wheels sit close to the ends of the gate and in line with the track. The bracket needs a flat underside 42mm wide. Bolt through the two holes at 155mm centres, or weld the bracket after grinding the plating off the weld area and working with fume extraction. Fixings are not listed as included, so allow your own. Set the gate so that the wheels sit fully on the track along its whole travel.

Keep the track clear of stones and packed dirt, and check the wheels and fixings at each service. Plating gives light protection only, so touch up scratches and welds with zinc-rich paint. Replace a wheel that has worn or stiffened, and check its partner at the same time.

Frequently asked questions

Ordering and delivery

Order 4 or more online, with Express UK Delivery to your site and same-day dispatch on orders before 2pm, Monday to Friday. For a larger job, call 01744 520 110 or email sales@industrialsuppliesco.co.uk and we will confirm availability and delivery before you order.