Trailer wheels 7.5 20

Types of Trailer Wheels 7.5 20

There are many different sizes and types of trailer wheels, and they all serve different purposes. One of the most popular sizes is the 7.5 20 trailer wheel. This size is commonly used for heavy-duty trailers that need to haul large loads. The 7.5 trailer wheel size refers to the width of the wheel in inches, while the 20 trailer wheel size refers to the diameter of the wheel in inches. There are many types of trailer wheels based on construction and bearing type.

• Steel trailer wheels: These are the most common types of wheels for trailers. They are affordable and durable, which makes them suitable for everyday use. Steel wheels, also known as iron wheels, are corrosion and impact resistant. These wheels are ideal for off-road trailers that are towed in rural areas. However, steel wheels are heavy and may not be suitable for lightweight trailers.
• Aluminum trailer wheels: Aluminum wheels are becoming more and more popular. They are stylish and lightweight, which makes them ideal for speeding. Aluminum wheels also have the advantage of corrosion resistance, which increases their durability. Because of their lightweight nature, aluminum wheels provide better fuel efficiency. Additionally, aluminum wheels have a high load capacity. These features make aluminum wheels ideal for high-performance trailers.
• Spindle trailer wheels: Spindle trailer wheels are the most common type of trailer wheel bearing. Most trailers are designed with this type of bearing. Spindle trailer wheels provide a stable and secure mounting point for the wheel. These wheels are ideal for both light-duty and heavy-duty trailers. Spindle trailer wheels are designed with different types of spindles, which include square, round, and straight designs.
• Hubs trailer wheels: Hub bearings are mainly used for lightweight and small utility trailers. This is because hub bearings are not suitable for heavy-duty use. This type of trailer wheel bearing requires more maintenance compared to spindle trailer wheels. Hub trailer wheels come in different sizes to accommodate different trailer sizes.

Specifications and maintenance of trailer wheels 7.5 20

• Load Capacity

  Each wheel has a maximum load capacity that should never be exceeded. The load rating is typically printed on the wheel itself or available in the owner's manual. For heavy-duty applications like car haulers and livestock trailers, it's important to choose wheels with higher load ratings.

• Wheel Size

  Trailer wheels are available in various sizes, typically measured in inches. Common sizes include 13", 14", 15", and 16". Larger wheels offer improved handling and stability, while smaller wheels provide a smoother ride over rough terrain.

• Tire Size

  Trailer tires are also available in different sizes, with the size printed on the sidewall. Common sizes are ST175/80R13, ST205/75R14, and ST225/75R15. The "ST" indicates a special trailer tire. Each size has its own load capacity and performance characteristics.

• Tire Load Rating

  Like wheels, tires have a maximum load rating that should not be exceeded. Trailer tire ratings are also printed on the sidewall. It's important to match the tire size and load rating to the trailer's specifications for safety and performance.

• Tire Pressure

  Proper tire inflation is critical for trailer performance and safety. Trailer tires should be checked regularly with a tire pressure gauge. The recommended tire pressure can be found in the owner's manual or on a sticker inside the trailer's tongue.

• Bolt Pattern

  Trailer wheels attach with lug bolts that have a specific bolt pattern. The bolt pattern is measured by counting the number of bolts and measuring the diameter of the circle they form. Common patterns are 5 lug bolts in a 4.5" circle and 6 lug bolts in a 5.5" circle. The bolt pattern must match the trailer hubs for proper fitment.

• Offset

  Wheel offset affects handling and stability. It's the distance the wheel mounting surface is positioned relative to the centerline of the wheel. Positive offset means the mounting surface is towards the front of the wheel, while negative offset means it's towards the rear. Most trailer wheels have a slight positive offset.

• Wheel Material

  Trailer wheels are typically made of steel or aluminum. Steel wheels are more affordable and suitable for off-road or heavy-duty use. Aluminum wheels are lighter, corrosion-resistant, and offer improved appearance and performance.

• Brake Type

  Most trailers use electric brakes, but some smaller trailers may have surge brakes. Electric brakes provide more stopping power and are adjustable. Regular maintenance, including brake shoe inspection and adjustment, is important for trailer safety.

• Axle Type

  Trailer wheels are mounted to axles of varying designs depending on the trailer size and weight capacity. Common axle types are leaf spring axles (most common), torsion axles (for lightweight trailers), and independent suspension axles (for high-performance trailers).

• Wheel Lug Nut Torque

  Trailer wheels are secured with lug nuts that must be properly torqued. The required torque is specified in the owner's manual. Over-tightening can damage the wheel or hub, while under-tightening can result in wheel detachment while towing.

How to choose trailer wheels 7.5 20

When shopping for trailer wheels, buyers should consider several factors to get the right fit for their needs. Here are some of the most important aspects to evaluate:

• Load rating:

  Every trailer wheel has a load rating that indicates how much weight it can support. Buyers need to add the weight of the trailer itself and all the cargo it will carry and pick wheels with a load rating above this total. For safety, the trailer wheel's load rating should exceed the total by 15 to 20 percent.

• Stud pattern:

  The wheel's stud pattern needs to match the trailer's hub for proper mounting. This includes measuring the number of lug holes and their spacing in inches. Most trailer wheels have a 5, 6, or 8 lug stud configuration.

• Offset:

  Trailer wheel offset is the distance between the wheel's centerline and the hub-mounting surface. It affects stability and clearance. Buyers should choose wheels with offset values specified in the trailer's manual.

• Material:

  Trailer wheels are usually made of steel or aluminum. Steel wheels are durable and inexpensive, making them a popular choice for utility trailers. Aluminum wheels are lighter and more corrosion resistant, suiting them for boat or cargo trailers.

• Tire size:

  The trailer wheel must accommodate tires sized as specified in the owner's manual. Buyers should check the manual or look at the tire sidewall for the correct dimensions. Common trailer tire sizes include ST175/13 and ST205/14.

• Tread design:

  Trailer tires feature various tread patterns optimized for different driving conditions. All-season treads suit most environments, while aggressive treads provide maximum grip in off-road situations. Choosing the right tread enhances towing stability and safety.

How to Replace Trailer Wheels 7.5 20

Replacing a 7.5 20 trailer wheel is a straightforward process that can be done with basic tools. Here is a step-by-step guide on how to replace trailer wheels:

Tools and materials needed:

• New 7.5 20 trailer wheel
• Tire iron or lug wrench
• Jack and jack stands
• Torque wrench

Step-by-step guide:

• 1. Prepare the trailer: Move the trailer to a level, solid surface. Activate the trailer's parking brake and set wheel chocks on the wheels opposite the one being replaced to prevent the trailer from rolling.
• 2. Loosen lug nuts: Use a tire iron or lug wrench to slightly loosen the lug nuts on the trailer wheel that needs replacement. Do not entirely remove the lug nuts yet.
• 3. Jack up the trailer: Position a jack underneath the trailer's designated jacking point close to the wheel being replaced. Raise the trailer until the wheel is slightly above the ground. Then, place jack stands under the trailer for added safety and stability.
• 4. Remove lug nuts and wheel: Fully remove the lug nuts and take off the old wheel from the hub.
• 5. Install the new wheel: Position the new 7.5 20 trailer wheel onto the hub. Hand-tighten the lug nuts to hold the wheel in place.
• 6. Lower the trailer: Remove the jack stands and lower the trailer using the jack. Once the trailer is back on the ground, fully tighten the lug nuts using the tire iron or lug wrench. In a crisscross pattern, ensure equal distribution of pressure.
• 7.Torque: For precise lug nut tightening, use a torque wrench. Adhere to the manufacturer's specified torque requirements for the trailer's wheels.

8. Clean up: Stow away all tools, jack stands, and wheel chocks. Remove any debris or clutter from the trailer.

By following these easy steps, trailer owners can confidently and safely replace their 7.5 trailer wheels, ensuring optimal performance and longevity.

Q and A

Q1: How much can 7.5x20 wheels tow?

A1: The towing capacity of the 7.5x20 wheels depends on various factors, including axle configuration, gross vehicle weight rating, and wheel rating. A proper calculation considering all these aspects must be done to determine the towing capacity. Consult the trailer manufacturer's specifications for assistance.

Q2: Can I upgrade to 7.5x20 wheels for my current trailer?

A2: Upgrading to 7.5x20 wheels is possible if the trailer's axle and suspension system can support the larger wheel size. Additionally, the new wheel size must be compatible with the trailer's wheel well clearance and overall gearing. Consult a professional for guidance on trailer wheel upgrades.

Q3: What is the correct tire pressure for 7.5x20 trailer tires?

A3: The proper tire pressure for 7.5x20 trailer tires is usually indicated on the trailer's placard or the tire sidewall. Maintaining the correct tire pressure is critical for towing stability, fuel efficiency, and tire durability. Check tire pressure regularly, and adjust as needed before towing.

Q4: Are 7.5x20 trailer wheels suitable for off-road use?

A4: 7.5x20 trailer wheels can be used for off-road applications, but their performance will depend on the selected tire type. Some trailer tires are designed for on-road use and may not perform well in off-road conditions. For frequent off-road use, choose all-terrain tires that offer better traction and durability in rugged environments.

Q5: What is the difference between radial and bias-ply trailer tires?

A5: Radial and bias-ply trailer tires have different constructions. Radial tires have their tread and sidewall cords at 90 degrees to each other, allowing better grip and longer wear. Bias-ply tires have their cords at 30 to 45 degrees to each other, providing more puncture resistance but less tread life. Radial tires are generally preferred for trailers due to their superior performance.