Seasonal preparation for the water for owners of inflatable boats often turns into a real test of physical endurance, especially for owners of boats NDND (inflatable floor), which, having excellent driving qualities, weigh significantly more than the classic models with floorboards. transom wheels It's not just a convenient accessory, it's a lifeline that allows one person to unaidedly bring a boat to and from the water, and mistakes in choosing this item can cause balloon damage or difficulty descending steep slopes.
The market offers many design options, but not all of them are suitable for the specific geometry of an inflatable transom. Unlike rigid aluminum or plywood transmuters, soft side requires a special approach to attachment and load distribution. wheel-wheel They are considered the best ways to install them and what to look for, so as not to spoil the expensive boat in the first season.
Specifics of operation of wheels on boats with inflatable transcen
The main feature of the NDND boats is that the transom is an inflatable structure with a rigid insert inside or outside, but the attachment of any accessories occurs through a soft PVC material. This imposes strict restrictions on the strength of the clamping and the contact area of the fasteners. transom wheels For such boats should have wide clamping paws or special gaskets, so as not to push the cylinder when transporting a heavy boat with an engine.
The second important thing is the height of the mount, because the bottom of the NDND is inflatable, it has a certain thickness, and when the wheels are attached in the upper position, they should not touch water when moving, and in the lower position, they should ensure that the transom is safely removed from the ground. The wrong length of the bracket can lead to the boat dragging the engine on the ground, which can damage the lower unit.
⚠️ Attention: Never use hard-trans wheels on inflatable models without additional reinforcement plates. Narrow metal paws can cut through PVC when tightened or vibrating when moving through irregularities.
For owners who often change the location of fishing, the speed of installation and removal of the accessory is critical. Quick-release arrangements They allow you to lock the wheels into a transport position in seconds, but they add weight and sail designs. The choice between a fixed mount and a removable option depends on how often you have to drag the boat over land in one foray.
Types of transom wheel designs for NDND
All the models on the market can be divided into several main types by way of attachment and configuration. folding-wheelThey are mounted on a transom, and when they are not working, they fold up, parallel to the sides. For NDND boats, this is often the best option, because they do not interfere with movement and do not require dismantling.
The second type is removable pin structures that are inserted into glasses that are fixed to the transom. modular The boat itself is convenient because it is easier to store as heavy metal elements stay at home, but finding space for soft-transcent glasses can be difficult, and they are often cut into a hard insert, which requires a professional approach.
The third option is a universal rotary system that allows you to change the angle of inclination of the wheels relative to the transom, which allows you to adapt the position of the wheels to the relief of the shore: for gentle sandy descent or steep rocky climb.
| Type of design | Kit weight (kg) | Difficulty of installation | Universality |
|---|---|---|---|
| Folding (standard) | 3.5 - 4.5 | Low. | Medium |
| Removable (on pins) | 2.0 - 3.0 | Medium | High. |
| Turning (lift) | 5.0 - 6.5 | High. | Maximum |
| Embedded (hidden) | 4.0 - 5.0 | Professional | Low. |
And we also have embedded wheels that are mounted inside or under the transom, which are rare for NDND boats, because they require inflatable tubes to be broken or rigid inserts to be hard-to-work. system They look aesthetically pleasing, but their installation is justified only in specialized workshops.
When choosing a folding wheel, pay attention to the quality of the spring mechanism. Cheap springs quickly lose their elasticity, and the wheels begin to spontaneously sink into the water during the boat, creating a huge resistance.
Selection criteria: diameter, material and load capacity
When choosing wheels for a heavy boat with an outboard motor, the wheel diameter becomes a key parameter. Small wheels (less than 200 mm) are designed exclusively for flat concrete slabs or smooth garage floors. large-wheel It's 250 mm to 300 mm or more in diameter, and the larger the diameter, the easier it is to overcome obstacles.
The material of the wheel is also crucial. Inflatable wheels (like baby carriages) provide excellent cushioning, but are prone to puncture. Cast polyurethane wheels are not afraid of sharp stones and driftwood, but transmit vibration more rigidly. For PVC boats, wheels with a heavy weight are considered the best choice. pneumatic and tread "tractor", or whole cast of soft rubber with imitation of tread.
- 🛞 Diameter: For NDNDD with a 15+ hp engine, choose wheels of at least 260 mm.
- 🏗️ Load capacity: The total load on the axle must exceed the weight of the boat + engine + equipment by at least 30%.
- 🛡️ Coverage: Chrome steel rusts faster than stainless or powder-painted steel.
Load capacity is often ignored, but a critical parameter: a 3.60-meter long NDND boat with a 20 hp engine and a full tank can weigh more than 90-100 kg. Cheap Chinese wheels often have a declared load of 50 kg per pair, which in reality means a deformation of the axle on the first attempt to go on a slide. metal axis The bearings must have a diameter of at least 10-12 mm, and the bearings must be closed to protect against water and sand.
⚠️ Attention: Don't use plastic sleeves instead of heavy boat bearings. When hit by sand, they will quickly jam and you'll be left with a fixed axis in the middle of the descent, risking dropping the boat.
Methods of fastening the wheels on a soft transom
Mounting wheels on a NDND boat requires precision and understanding of the transom design. The most common method is to bolt through a rigid transom insert, and this requires precise location of the drilling so that the internal partitions of the inflatable cylinder are not damaged. Fastening elements must be made of stainless steel grade AISI 304 or AISI 316, as contact with salt water is inevitable.
The second method, gaining popularity, is to use removable platforms that are attached to slings or special pockets on the transom, if provided by the manufacturer of the boat. However, for heavy motors, this method is not reliable enough. The most reliable is the combined method, where the bracket covers a rigid insert on both sides, tightening powerful bolts with wide washers.
☑️ Check before installation of wheels
Installation is important to use sealer This prevents the cloth from being rubbed with the vibration and movement of the boat. Bolts should not be tightened "to the point" with a key, enough hand effort with a small addition, so as not to deform the soft sides of the transom.
Top manufacturers and a review of popular models
The market is dominated by several proven brands that have proven themselves in real-world conditions, among them Russian manufacturers, such as: Flagship and hunter, which adapt their products to the popular models of boats NDND. Their products are affordable price and good repairability in the garage.
Foreign analogues, for example, from companies Atwood or Marine RaiderThey offer better fixation mechanisms and often use aluminium alloys of aviation quality instead of steel. This significantly reduces weight, which is a significant plus for an inflatable boat, but the cost of such kits can be 2-3 times higher than domestic counterparts.
When choosing a specific model, pay attention to the availability of double-stop A single pin can pop out when you shake a lot, whereas a double lock ensures that the wheel doesn't fold at the wrong time, and it's also worth considering telescopic height adjustment models that allow you to adjust the clearance to a specific boat.
The Secret of Durability
After each salt water trip, be sure to wash the wheel mechanism with fresh water. The salt, drying in bearings and hinges, works like an abrasive, quickly disabling expensive fittings.
Care and maintenance of trans-trans fittings
Even the best wheels require regular maintenance, and after each release, especially if it was salt water or muddy river slurry, the mechanism must be rinsed. Corrosion The main enemy of any metal fittings, periodically lubricate the moving parts of the hinges and axes with silicone or Teflon lubricant, which is not washed away with water.
It is recommended to store a boat with installed wheels in a disassembled form or in a reclined position, so as not to create constant stress on the springs and seals of the transom. If the wheels are removable, their attachment places (glasses or holes) should be closed with plugs so that moisture and dirt do not get inside the transom.
- 🧼 Wash the wheels with fresh water after each use.
- 🔧 Once a season, check the tightening of the bolts of the mount to the transom.
- 💧 Lubricate the axles and hinges before the start of the season and after winter storage.
⚠️ Attention: Do not keep a boat with pumped pneumatic wheels under direct sunlight in the summer. Ultraviolet and overheating can lead to rubber cracking or the camera spontaneously rupture.
FAQ: Frequently asked questions
Can you install transom wheels on a NDND boat without drilling a transom?
A full installation without drilling is only possible if the manufacturer of the boat has provided special pockets or reinforced areas for installation, otherwise the use of clamps or Velcro straps will not provide the necessary strength for the transport of a motorized boat and may lead to the loss of wheels or damage to the cylinder.
What is the best wheel diameter for sand and shell?
For soft soils such as sand and uneven surfaces with a shell, the minimum recommended diameter is 260 mm, and better 300 mm. Small wheels (200 mm) will be buried in the sand, and you will have to carry the bulk of the boat on yourself, reducing the meaning of installing wheels to zero.
Will the wheels withstand the weight of a boat with a full tank and two passengers?
High-quality trans-wheels are designed to carry a boat in running order (with engine, tank and equipment), but they are not designed to rely on them with all their weight when boarding a boat or while stationary. Their function is to move over land, not to support buoyancy or static.
Do I need to remove the wheels for winter storage?
So you want to take the wheels off, or at least loosen the tension of the springs and throw them away, and that will take the load off the fasteners on the transom, and prolong the life of the rubber seals, and the metal parts are better preserved with lubrication.
Properly selected and installed transom wheels turn a heavy boat NDNDM into a mobile complex, available for transportation by one person, while preserving the resource of the transom itself.