8,000 lb Straight Spindle Bearing Kit
Kaufman Mini 5 Trailer Axles
Part Number: 8000-STRAIGHT-KIT-CAP
This bearing kit fits Kaufman Mini 5 trailer axles equipped with the straight 1.75" spindle (non-tapered). Includes bearings, races, seal, oil cap, O-ring, and center plug for oil bath hubs.
Kit Includes
- 2× 25580 Bearings — 1.750" ID (fits 25520 race, for 12" drums / large hubs)
- 1× Oil Cap — 4" style (4"-12)
- 1× 046-032-00 Oil Plug — center plug for 021-036-00 style cap
- 1× 010-050-00 O-Ring — 3.734" ID × .139"
-
1× 10-225-15 Oil Seal — 2.25" × 3.38"Fits 5200#, 7000#, and 8000# straight spindles
Specifications
| Component | Specification |
|---|---|
| Spindle Type | Straight 1.75" (Kaufman Mini 5) |
| Bearing (Both) | 25580 – 1.750" ID |
| Oil Seal | 10-225-15 — 2.25" × 3.38" |
| Oil Cap | 4"-12 style cap w/ plug + O-ring |
This kit replaces wear components only. Always confirm your spindle diameter and hub casting numbers before installation.