Bushing Spare (P/N: 252112051) Manufacturing Process
Material Prep: Use ASTM B505 C93200 tin bronze bars (Ø80±0.1mm). Cut to 60±0.3mm length via CNC lathe.
Rough Machining: Turn OD to Ø75±0.2mm; bore ID to Ø55±0.2mm.
Lubrication Grooves: Mill 3 spiral oil grooves (3mm wide × 1.5mm deep) at 120° spacing.
Heat Treatment: Stress-relieve at 300°C for 2 hours.
Finish Machining: Grind ID/OD to Ø54.8±0.02mm/Ø74.8±0.02mm; polish to Ra ≤0.8μm.
Surface Treatment: Apply phosphating coating (5–8μm) per 9717.
QC Checks: Verify dimensions (CMM), hardness (HB 60–80), and groove depth. Reject if porosity exceeds 21920-2 standards.
Packaging: Coat with anti-corrosive oil.
Product Deatials
| Part Name | Shaft Sleeve | Part Number | 252112051 |
| Model | Z5GN.8-2 | Application | XCMG Loader |
| Package Size | / | GW | 4.2KG |
| MOQ | 1 PC | Brand Name | CBP |
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