Strict Quality Inspection Graphite copper sleeve JDB 5*8*20 Drilling rig bushing
Product Details
Graphite copper sleeve
,JDB5*8*20 bushing
,Drilling rig bushing
Strict Quality Inspection Graphite copper sleeve JDB 5*8*20 Drilling rig bushing
Pressed into a worn housing, the JDB5*8*20 bush restores the original bore size and adds dry-running capability the original part never had. Its 5 mm bore is honed for shaft contact, while chamfered ends ease installation and protect the graphite inserts from shearing during the press fit.
Specifications of JDB5*8*20 graphite copper sleeve
| Model | JDB5*8*20 |
| Bore Diameter (d) | 5 mm |
| Outer Diameter (D) | 8 mm |
| Sleeve Length (L) | 20 mm |
| Material | Brass alloy + solid graphite |
| Lubrication | Self-lubricating / grease optional |
| Tolerance | H7 bore, ground OD |
| Working Temperature | -40 C to +300 C |
| Application | Drilling rig |
Why the JDB5*8*20 bush fits Drilling rig joints
- Dry-running capability, no oil film collapse in oscillating joints
- Good embedding behaviour traps abrasive dust away from the shaft
- Lower friction torque than plain bronze bushes at start-up
- Dimensionally stable after long service at elevated temperature
- OEM-compatible dimensions for direct replacement
- Available in matched sets for complete pin and bush overhauls
Ordering information
We supply the JDB5*8*20 bush individually or as a matched pin-and-bush kit. Tell us the application and duty cycle and our engineers will recommend the lubrication pattern and interference fit that suit it best.
FAQ
Q1: What is the MOQ? A1: 10 pcs per model for stock sizes.
Q2: Can the size be customized? A2: Yes, bore, length, flange and oil groove can be produced to your drawing.
Q3: Which payment terms are accepted? A3: T/T, Western Union, Paypal and L/C.
Q4: How fast is delivery? A4: Stock sizes ship within 3-7 days after payment.
Q5: Are samples available? A5: Yes, sample orders are welcome for fitting tests.
Ms. Nancy
- Email: nancy@nenglibearing.com
- Tel: +86 13771140667
- WhatsApp: +8613812077876
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WeChat:
+86 13771140667
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