PTFE Bushes & Tubes
Self-Lubricating Sleeves
Precision Molded & Machined PTFE Bushes
Sag Engineers manufactures precision molded and machined PTFE Bushes and thick-walled tubes. Designed specifically for low-friction, maintenance-free, dry-running bearing applications where traditional grease or oil lubricants fail due to high temperatures or corrosive chemical attack.
Product Specifications:
- Standard Outer Diameter (O.D.): 32mm to 150mm
- Standard Inner Diameter (I.D.): 12.5mm to 125mm
- Standard Length: 100mm standard stock
- Custom Large Diameters: O.D. up to 1100mm (Maximum), I.D. down to 6mm (Minimum)
- Extended Lengths: Longer lengths up to 750mm for Bush O.D. up to 300mm with min wall thickness of 10mm
- Available Fillers: Glass Fibre, Carbon, Graphite, Bronze, and Bronze + MoS2 compounds
Key Applications:
Chemical pump shaft sleeves, mechanical seal faces, and agitator guides.
Hydraulic cylinder piston guide rings and heavy-duty pneumatic actuator bushes.
Electrical switchgear insulating sleeves and food/pharmaceutical conveyor bearings.
PTFE Bush Dimension Range Overview
| Outer Diameter (O.D.) | Inner Diameter (I.D.) | Standard Length | Max Custom Length | Recommended Compound |
|---|---|---|---|---|
| 32mm to 60mm | 12.5mm to 45mm | 100mm | Up to 750mm | Virgin / 25% Carbon / 40% Bronze |
| 65mm to 100mm | 25mm to 80mm | 100mm | Up to 750mm | Virgin / 15-25% Glass / Bronze |
| 110mm to 150mm | 50mm to 125mm | 100mm | Up to 500mm | Virgin / Bronze + MoS2 |
| 160mm to 300mm | 80mm to 260mm | 100mm | Up to 500mm | Virgin / Glass / Carbon |
| 310mm to 600mm | 150mm to 550mm | 100mm | Up to 300mm | Custom Compression Molded |
| Up to 1100mm Max | Custom as per drawing | 100mm | Made to Order | Heavy Hydraulic Compression |