Uriah Products UW000545
Uriah Products UW000545 Trailer Hub Kit Instruction Manual
Replacement Trailer Hub Kit for #84 Spindles
Introduction
This manual provides detailed instructions for the proper installation, operation, and maintenance of the Uriah Products UW000545 Replacement Trailer Hub Kit. This kit is designed for #84 spindles and features a 5-bolt pattern on a 4-1/2" bolt circle, accommodating 1-1/16" and 1-3/8" inner diameter bearings. Adhering to these instructions will ensure safe and reliable performance of your trailer hub.
Коопсуздук маалыматы
- Always wear appropriate personal protective equipment (PPE), including safety glasses and gloves, during installation and maintenance.
- Ensure the trailer is securely supported on jack stands before beginning any work. Never rely solely on a jack.
- Disconnect the trailer from the tow vehicle and engage the parking brake (if applicable) to prevent accidental movement.
- Use proper tools for all procedures. Incorrect tools can cause damage or injury.
- If you are unsure about any step, consult a qualified trailer mechanic.
- Do not exceed the 1,750 lb. capacity of this hub kit.
Пакеттин мазмуну
Орнотууну баштоодон мурун бардык компоненттер бар экенин жана бузулбаганын текшериңиз:
- One (1) Trailer Hub with bearing races installed
- Five (5) 1/2" Diameter Wheel Studs
- Five (5) 1/2" Diameter, 60-Degree Cone Wheel Nuts
- One (1) L44649 Tapered Roller Bearing (Outer)
- One (1) L68149 Tapered Roller Bearing (Inner)
- One (1) 12192TB Double-Lipped, Spring-Loaded Grease Seal
- One (1) Drive-In Grease Cap
Орнотуу нускамалары
Follow these steps for proper installation of the trailer hub kit:
- Prepare the Spindle: Ensure the #84 spindle is clean and free of debris or old grease. Inspect the spindle for any damage or wear.
- Install Inner Bearing: Pack the larger L68149 bearing with high-temperature wheel bearing grease. Insert the packed bearing into the inner race of the hub.
- Install Grease Seal: Carefully tap the 12192TB double-lipped grease seal into the back of the hub until it is seated flush. Ensure the seal is not bent or damaged during installation.
- Mount Hub onto Spindle: Slide the hub assembly onto the #84 spindle. Be careful not to damage the grease seal on the spindle threads.
- Install Outer Bearing: Pack the smaller L44649 bearing with high-temperature wheel bearing grease. Insert the packed bearing into the outer race of the hub.
- Install Washer and Spindle Nut: Place the flat washer over the spindle, then thread on the spindle nut.
- Adjust Bearing Preload: Tighten the spindle nut to approximately 50 ft-lbs while rotating the hub to seat the bearings. Then, loosen the nut until it is finger-tight. Re-tighten the nut to 10-15 ft-lbs. Back off the nut one castellation (or 1/6 to 1/4 turn) until the cotter pin can be inserted. The hub should spin freely with minimal end play.
- Secure Spindle Nut: Insert a new cotter pin through the spindle nut and spindle hole, bending the ends to secure it.
- Install Grease Cap: Tap the drive-in grease cap into the center of the hub.
- Install Wheel Studs and Nuts: If not pre-installed, press the 1/2" wheel studs into the hub. Mount the wheel onto the hub and secure it with the five 1/2" wheel nuts, tightening them to the trailer manufacturer's recommended torque specifications in a star pattern.

Image: Uriah Products UW000545 Trailer Hub Kit showing the hub, bearings, seal, and wheel nuts. This kit is designed for #84 spindles with a 5-bolt pattern on a 4-1/2" circle.
Операция
Once installed, the trailer hub operates as part of your trailer's wheel assembly. Ensure proper tire inflation and load distribution for safe towing. Regularly check wheel nuts for proper torque, especially after the first 50 miles of towing with new hubs.
Техникалык тейлөө
- Greasing: Inspect and repack wheel bearings with high-temperature wheel bearing grease annually or every 12,000 miles, whichever comes first. If the trailer is submerged in water (e.g., boat trailers), inspect and repack bearings more frequently.
- Текшерүү: Periodically check the hub for signs of wear, damage, or excessive heat. Listen for unusual noises during operation.
- Мөөрдү алмаштыруу: Replace grease seals whenever bearings are repacked or if any leakage is observed.
- Подшипник алмаштыруу: Replace bearings if they show signs of pitting, discoloration, or excessive wear.
Проблемаларды чечүү
| Көйгөй | Мүмкүн себеп | Чечим |
|---|---|---|
| Excessive Wheel Wobble | Loose spindle nut, worn bearings, bent spindle. | Re-adjust spindle nut, inspect and replace bearings, inspect spindle for damage. |
| Hub Overheating | Insufficient grease, overtightened bearings, worn bearings, brake drag. | Inspect and repack bearings, adjust bearing preload, check brake system. |
| Unusual Noise (Grinding, Squealing) | Worn or damaged bearings, lack of lubrication. | Inspect and replace bearings, ensure proper greasing. |
| Grease Leakage | Damaged or improperly seated grease seal. | Replace grease seal, ensure proper installation. |
Техникалык шарттар
- Модел: UW000545
- Сыйымдуулугу: 1,750 фунт.
- Spindle Compatibility: #84 Spindles
- Болттун үлгүсү: 5 bolts on a 4-1/2" Circle
- Wheel Studs: 1/2" Diameter
- Inner Bearing: L68149 (1-3/8" Inner Diameter)
- Outer Bearing: L44649 (1-1/16" Inner Diameter)
- Grease Seal: 12192TB Double-Lipped, Spring-Loaded
- Камтылган компоненттер: Hub with races, 2 bearings, grease seal, grease cap, 5 wheel studs, 5 wheel nuts.
Кепилдик маалымат
Uriah Products offers a manufacturer's warranty of 30 days on parts. For specific terms and conditions, please refer to the warranty documentation included with your purchase or contact Uriah Products customer support.
Кардарларды колдоо
For technical assistance, replacement parts, or warranty claims, please contact Uriah Products customer service. Refer to the official Uriah Products webучурдагы байланыш маалыматы үчүн сайт же сатып алуу документтери.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.