Product Description
Poly Load Wheel Assembly, 95-A
Specifications: 3.250 inch diameter x 5.937 inch width (3.250" x 5.937" | 3.25 x 5.94 wheel | 3-1/4 x 5.937 | 82.55mm x 150.80mm)
Specifications
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 5.873 |
| Bore Depth | 0.591 |
| Hub Width | 5.873 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What is included in the SU S629-A wheel assembly, and what is not?
A: The SU S629-A is a wheel assembly, not a complete axle kit. It includes the poly 95A load wheel mounted on a hub with the bore and mounting provisions pre-assembled. It does NOT include bearings, axle shafts, axle bolts, or fasteners unless explicitly stated in your purchase agreement. You will need to install this assembly onto your existing jack axle using the existing axle fastening method (typically press-fit, bolt-on, or cartridge bearing slides). If your axle, bearings, or fastening hardware are damaged, you must repair or replace those components separately.
Q: Do I need special tools to install the SU S629-A assembly on my electric lift truck?
A: Installation depends on your jack design. If the wheel is bolted to a hub flange, you will need wrenches to remove the old assembly and install the new one, typically a 10mm to 17mm range. If the wheel is press-fit onto a shaft, you will need a hydraulic press or bearing puller to remove the old wheel and press the SU S629-A onto the shaft without damaging the bore. Do not attempt to hammer or force-fit the assembly; improper installation will damage the bearing and bore. If you are unsure of your jack configuration, consult the equipment manual or contact the jack manufacturer before attempting installation. Professional technicians typically charge 1 to 2 hours labor for wheel assembly replacement.
Q: What is the difference between SU S629 (wheel only) and SU S629-A (assembly)?
A: The SU S629 is the wheel component only; you install it onto an existing hub or axle. The SU S629-A is a pre-assembled wheel and hub unit that mounts directly to your jack axle. Order the SU S629-A if your existing hub is damaged, cracked, or has a damaged bore that cannot be repaired. Order the SU S629 if your hub is intact and you only need a replacement wheel. The wheel diameter, width, and compound (3.25 x 5.937 inch, poly 95A) are identical on both parts; the difference is whether the hub is included. The SU S629-A will be more expensive but saves assembly labor.
Q: Is the SU S629-A assembly compatible with sealed bearing cartridges or loose roller bearings?
A: The SU S629-A assembly specifications do not explicitly state the bearing type. If your jack uses sealed cartridge bearings, the assembly must have matching cartridge seats in the hub bore. If your jack uses loose tapered roller or ball bearings with grease lubrication, the hub design will be different. Before ordering, verify your bearing configuration from the jack manual. Most modern lift trucks use sealed cartridge or sealed-for-life bearings. If the SU S629-A hub design does not match your bearing type, it cannot be installed. Contact the supplier with your jack make and model number to confirm bearing compatibility.
Q: How long does the SU S629-A assembly last, and when should I replace it?
A: The wheel compound (poly 95A) typically lasts 12 to 24 months in heavy-duty warehouse use, with 18 months being average for daily operation. The hub and bearings can last 3 to 5 years if properly maintained and the bearings are re-lubricated or inspected according to schedule. Replace the SU S629-A assembly when the wheel compound is worn flat or cracked, or when the hub bore is damaged and cannot be repaired. Do not wait until the wheel fails completely; excessive wear increases rolling resistance, stresses the equipment drivetrain, and can cause loss of handling control. Monitor wheel wear monthly and plan replacement before failure occurs.
Q: Can I re-use the bearings from my old wheel assembly when installing the SU S629-A?
A: Do not re-use bearings unless they are in perfect condition (no pitting, grinding, or rough rotation) and your bearing bore matches the SU S629-A bore specifications exactly. If the old bearings show any wear or noise, discard them and install new bearings specified for this wheel assembly. If you remove old bearings from the existing hub and need to press them into the SU S629-A, you must clean them thoroughly, inspect them under a light for damage, and re-lubricate them. For cost-effective replacement, most facilities purchase the SU S629-A with new bearings already installed. Attempting to save money on bearings often results in early assembly failure and equipment downtime.