9 x 3.50-4 semi-pneumatic mower deck wheel assembly suited to compatible large deck mowers and turf-cutting machinery, with a smooth tread, central hub and tapered roller bearings.
Suited to mower deck applications: Intended for compatible wheel positions directly on or alongside larger cutting decks, helping support the deck as the mower travels across lawn and turf.
Smooth tread for lower turf impact: The slick tyre profile has no aggressive tread blocks to bite heavily into the grass, helping the wheel roll and change direction with less surface disturbance on turf.
Semi-pneumatic cushioning: The semi-pneumatic tyre provides some compliance over grass and minor surface irregularities without relying on conventional tyre pressure, reducing the need for inflation and regular pressure checks.
9 x 3.50-4 deck wheel size: The compact wheel format is suited to deck-mounted applications where a smaller support wheel is required rather than a large front castor wheel.
Central hub position: The hub is positioned centrally through the wheel, making it suitable for compatible mower deck brackets using the same centred mounting arrangement.
102mm hub length: The hub measures 102mm including the sleeve. Compare this dimension with the available space in your existing mower deck mounting bracket before ordering.
5/8″ axle fitment: Suits a 16mm axle, approximately equivalent to 5/8″. Check the axle or mounting bolt diameter on your existing wheel to confirm compatibility.
Tapered roller bearings: Fitted tapered roller bearings help support dependable wheel rotation under load while reducing rolling resistance during regular mower deck movement.
9 x 3.50-4 semi-pneumatic mower deck wheel assembly suited to compatible large deck mowers and turf-cutting machinery, with a smooth tread, central hub and tapered roller bearings.
Suited to mower deck applications: Intended for compatible wheel positions directly on or alongside larger cutting decks, helping support the deck as the mower travels across lawn and turf.
Smooth tread for lower turf impact: The slick tyre profile has no aggressive tread blocks to bite heavily into the grass, helping the wheel roll and change direction with less surface disturbance on turf.
Semi-pneumatic cushioning: The semi-pneumatic tyre provides some compliance over grass and minor surface irregularities without relying on conventional tyre pressure, reducing the need for inflation and regular pressure checks.
9 x 3.50-4 deck wheel size: The compact wheel format is suited to deck-mounted applications where a smaller support wheel is required rather than a large front castor wheel.
Central hub position: The hub is positioned centrally through the wheel, making it suitable for compatible mower deck brackets using the same centred mounting arrangement.
102mm hub length: The hub measures 102mm including the sleeve. Compare this dimension with the available space in your existing mower deck mounting bracket before ordering.
5/8″ axle fitment: Suits a 16mm axle, approximately equivalent to 5/8″. Check the axle or mounting bolt diameter on your existing wheel to confirm compatibility.
Tapered roller bearings: Fitted tapered roller bearings help support dependable wheel rotation under load while reducing rolling resistance during regular mower deck movement.
Description
The SP09-350-625 is a 9 x 3.50-4 wheel assembly suited to compatible large deck mowers and turf-cutting machinery. It is intended for a deck-mounted position, where the wheel helps support the cutting deck as the mower moves across grass and uneven lawn surfaces.
Its slick tread is well suited to turf applications because it avoids the aggressive tread blocks commonly used on driven wheels. This allows the mower deck wheel to roll and change direction with less tendency to bite into or mark the grass.
The semi-pneumatic tyre construction provides some cushioning over minor surface irregularities without relying on conventional tyre pressure. This reduces the need for inflation and regular pressure checks while still giving the wheel some compliance during mower deck movement.
The wheel uses a central hub arrangement with a hub length of 102mm including the sleeve. It suits a 16mm axle and is fitted with tapered roller bearings to support smooth rotation under load.
Fitment should be confirmed against the wheel currently installed on the mower. Compare the 9 x 3.50-4 size, hub length, axle diameter and central hub position, and make sure there is sufficient clearance within the mower deck mounting bracket for the wheel to rotate freely.
Product FAQs
Fitment should be checked against the wheel currently installed on your mower deck rather than relying on the mower make or model alone. For the SP09-350-625, compare the 9 x 3.50-4 size, 102mm hub length, 16mm axle and central hub position with your existing wheel.
Also check the available space inside the mower deck mounting bracket so the wheel can rotate freely without binding.
Check the tyre size, overall wheel dimensions, hub length, axle diameter and hub position on the wheel already fitted to the mower. You should also measure the available width within the mounting bracket.
Matching only the 9 x 3.50-4 tyre size is not enough, as similar wheels can use different hub lengths or axle diameters.
This wheel is suited to compatible large deck mowers and turf-cutting machinery. It is mounted directly to or alongside the cutting deck, where it helps support the deck as the mower moves across the ground.
It is a different application from the larger front castor wheels used for steering on zero-turn mowers.
The smooth tread helps the wheel roll across turf without aggressive tread blocks gripping heavily into the grass, which can help reduce surface wear during deck movement. The semi-pneumatic construction also provides some cushioning without requiring conventional tyre inflation or pressure checks.
The tapered roller bearings support the wheel as it rotates under load and help reduce rolling resistance during regular mower deck operation. This makes them well suited to applications where the deck wheel is repeatedly rolling across turf while supporting the cutting deck.
Product Code
SP09-350-625
Size
9 X 3.50-4
Axle size
16 mm
Hub position
Central
Hub Length (with sleeve)
102 mm
Tyre Type
Semi Pnuematic Tyre
Tread Pattern
Slick
Need Stainless Steel?
Our Stainless Excel Series castors offer the same European design pressed metal
frame with a 304 stainless finish and bearings suited to wet and hygiene environments
International Shipping Available
