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Semi-Trailer Parallel Spindle 85
If you’re in the market for solid replacements for your semi-trailer’s parallel spindles, look no further.
Crafted from rugged 1040 steel and toughened with our unique induction heat treatment, our semi-trailer parallel spindles are designed to endure the long hauls and the constant grind of the road.
Every parallel spindle is inspected, securely packed, and shipped straight from our North American warehouse. Your package comes with an ABS mount, a front breather cap, and a detailed installation guide.
In stock
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| Type: | Parallel trailer spinlde |
| Recommended Fit For: | Semi-trailers with parallel spindles and 5" axle tube |
| Heat Treatment: | Yes |
| Weight: | 45 lbs |
| Warranty: | 1 Year Limited Warranty |
In stock
Description
The average expected lifespan of a semi-trailer is between 10 to 15 years, depending on multiple factors like maintenance, road conditions, and load or use case. Using high-quality replacement parts, such as our parallel spindles, is the best way to push past expectations and maximize a trailer’s lifespan and service.
Required Tools
Having the right tools and equipment is key to a successful installation. This list covers essential equipment that most shops already have, but we recommend taking a moment to ensure everything is on hand before beginning.
Safety Equipment
- Flashlight
- Safety Glasses
- Face Shield
- Welding Helmet
- Ear Plugs
- Cotton Heavy Duty Thick Welding Gloves
Measuring Tools
- Digital Caliper 0-6"/150mm
- Measuring Tape and Ruler
- Trailer Measuring Tool for Parallel and Tapered (shipped with practice spindles for product demo)
Hand Tools
- Sledge Hammer
- Chipping Hammer
Specialized Tools
- Stemco Seal Driver with Tube, Part: 555-0001
- STEMCO STE 555-5039 H0
Gas and Tanks
- Acetylene and Oxygen Tanks
Power Tools & Accessories
- 5" Electric Grinder or Battery Powered
- 5" Wire Wheels
- Cutting and Grinding Discs (5" or less)
- Makita GS6000 6" Straight Grinder
- Air Die Grinder (or electric)
- Welding Machine (MIG or Stick)
- Welding Rods 7018
- Cutting Torch and Heating Torch Set (Heavy Duty)
- Shop Fan (Battery or Electric to cool down spindle after installation)
Lubricants, Fluids, & Paints
- Red-Tac EP2 Grease
- Cutting Fluid
- Brake Cleaner
- Black Rust Paint
Semi-Trailer Parallel Spindle
Parallel spindles have a uniform, cylindrical shape with the same diameter along the entire length of the spindle. This straightforward design simplifies manufacturing and provides consistent performance, making it easier to balance loads and maintain stability.
The parallel shape is compatible with ball bearings or cylindrical roller bearings, which are excellent at handling radial loads. This makes parallel spindles well-suited for trailers that carry lighter, more consistent loads, such as utility trailers, car haulers, and some dry van or box trailers.
Parallel spindles typically require less frequent maintenance due to their simpler design and fewer components. However, it’s still essential to perform regular inspections and ensure proper lubrication to maintain their longevity and reliability.
Spindle Maintenance
Do You Have a Problematic Spindle?
Wheel bearing maintenance is a crucial yet often overlooked aspect of commercial vehicle upkeep. Many truck and trailer owners are unaware of the importance of regular wheel bearing checks and lubrication changes. If neglected, this can lead to damaged spindles and dangerous situations as break pads can become compromised by leaking bearing lubricants and grease.
When inspecting your truck or trailer for signs of trouble, listen for unusual noises like whirring, clicking, or clunking, particularly while turning. Unusual vibrations can also be an indicator as well as visual signs like bearing grease leaking from the boot. A quick visual inspection of the inner side of the wheel’s rim will help identify any issues.
Is this the right spindle for the job?
Not sure if this will fit your trailer?
The Semi-Trailer Parallel Spindle 85 features a 85mm outer diameter, and is for trailers with a 5 inch axle tube. This spindle is compatible with:
- Outer bearing set 415
- Timken inner bearing set 415
- Wheel seal 370065A
- Lock nut 447-4723
If you’re still in doubt, contact us and we’ll help you find the right product.
