T: +8615609213525
E: 15829336298@139.com
E: 15829336298@139.com
Room 1212-G107, Unit 2, Building 1, Block A, Shenglong Plaza, No. 80 Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province
| Quantity: | |
|---|---|
99012340123
Sinotruk HOWO
| Attribute | Specification |
|---|---|
| Official Name | Rear Wheel Hub Bolt and Nut Assembly |
| Common Names | Wheel Stud, Lug Bolt, Rim Bolt, Dual-Wheel Fastener |
| OEM Brand | SINOTRUK / Shacman (compatible) |
| Part Number | 99012340123 |
| Thread Size | M22 × 1.5 (metric fine thread) |
| Length | ~133 mm – 135 mm (standard); some variants up to 150 mm |
| Strength Grade | 10.9 or 12.9 (high-tensile alloy steel grade) |
| Material | Alloy steels: 40Cr or 35CrMo (chromium-molybdenum steel) |
| Heat Treatment | Quenched and tempered (Q&T), surface induction hardening for wear resistance |
| Weight (with nut) | Approx. 0.55 kg – 0.65 kg per bolt-nut set |
| Surface Finish | Phosphated ("black oxide") or zinc-plated for corrosion resistance |
| Design Type | One-end threaded stud with knurled shank for press-fit installation into hub |
| Function | Secures outer and inner dual wheels on commercial truck hubs |
| Origin | China (Jinan/Shaanxi production base) |
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Confirm correct model: Use SINOTRUK EPC or Shacman parts catalog to verify compatibility.
Inspect new bolts: Check for stripped threads, bent shafts, or damaged knurls.
Clean hub holes: Remove rust, dirt, old adhesive, or burrs from mounting bores.
Replace all components if needed: Never mix old and new bolts/nuts on same hub.
Install Wheel Studs (if replacing):
Press into hub using hydraulic press or installer tool.
Ensure full seating and perpendicular alignment.
Mount Inner Rim First:
Slide onto studs carefully to avoid damaging threads.
Install Outer Rim:
Align with inner rim and push onto studs.
Install Nuts:
Hand-start all nuts first to prevent cross-threading.
Tighten in Crisscross Pattern:
Stage 1: 30% → Stage 2: 60% → Final: 550–650 N·m
Use calibrated torque wrench.
Apply torque in multiple stages:
Follow diagonal sequence to ensure even pressure.
