High Precision Graphite copper sleeve JDB 5*7*10 Drilling rig bushing
Product Details
Graphite copper sleeve
,JDB5*7*10 bushing
,Drilling rig bushing
High Precision Graphite copper sleeve JDB 5*7*10 Drilling rig bushing
Built around a cast brass matrix with evenly distributed solid graphite plugs, this JDB5*7*10 sleeve keeps a transfer film on the shaft surface, so the joint runs smoothly even when the grease nipple is missed for weeks. Its 7 mm outer diameter is ground to a fine finish for a light press fit into the housing bore.
Specifications of JDB5*7*10 graphite copper sleeve
| Model | JDB5*7*10 |
| Bore Diameter (d) | 5 mm |
| Outer Diameter (D) | 7 mm |
| Sleeve Length (L) | 10 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*7*10 bush fits Drilling rig joints
- Solid lubricant works from -40 C to 300 C without re-greasing
- Reduced friction heat protects seals and shaft surfaces
- High compressive strength for slow, heavily loaded rotation
- Graphite plugs countersunk to survive assembly and handling
- Consistent batch quality from CNC machining and inspection
- Cuts downtime and spare-part cost on Drilling rig fleets
Ordering information
If your Drilling rig uses a similar pivot but with different dimensions, the same brass-graphite construction can be made to your specification, including non-standard bore, wall thickness and graphite density.
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:
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