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Home / Pig Herding Tool / 4044 4550 5055 SF1 Composite Bearing/Oil-Free Bushing Wear-Resistant Self-Lubricating Oil-Impregnated Shaft Bushing Copper Sleeve

Attributes

Brand -
Category Livestock & Farming Supplies / Pig Herding Tool
Origin -
Material Composition SF1 Composite (PTFE + Bronze + Steel Backing)
Lubrication Type Self-lubricating / Oil-impregnated
Available Sizes 40x44mm, 45x50mm, 50x55mm
Operating Temperature -40°C to +110°C
Max Load Capacity 250 N/mm² static
Friction Coefficient 0.03 - 0.10 (dynamic)
Surface Finish Precision machined bronze layer
Corrosion Resistance High resistance to farm chemicals and moisture
Installation Method Press-fit into housing bore
Application Context Pig herding gate hinges and rotating shafts

6 reviews

A

Anonymous

Mar 25, 2026

Rating: 4/5

Durable but tight fit

Great quality bushings that seem very wear-resistant. Just make sure your housing bore is perfectly sized; it was a very tight press-fit which required a hydraulic press to install correctly.

A

Anonymous

Mar 18, 2026

Rating: 5/5

Perfect for heavy gate hinges

Installed these on our main pig pen gates. The self-lubricating feature is a game changer since we can't stop to grease hinges daily. They handle the weight of the steel gates effortlessly.

A

Anonymous

Mar 12, 2026

Rating: 5/5

No more squeaky gates

We replaced all the old brass sleeves with these SF1 composites. Zero noise even after months of constant use in muddy conditions. Highly recommended for livestock equipment.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Professional grade quality

As someone who repairs farm machinery, I appreciate the precision of these bushings. The tolerances are spot on, and the oil-impregnated matrix really extends the service life.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Excellent value for money

Bought the 50x55 size for a custom sorting chute. The copper sleeve provides great thermal conductivity and the PTFE layer ensures smooth operation. Will buy again.

A

Anonymous

Mar 02, 2026

Rating: 4/5

Solid performance in wet environments

These hold up well against the high-pressure washdowns we do weekly. No signs of rust or degradation yet. Took off one star because shipping took longer than expected.

5 FAQ

Q: Do I need to apply additional grease during installation?

A: No additional grease is required. The SF1 material is self-lubricating. Applying external grease might actually attract dirt and dust in a pig herding environment.

Q: What is the lead time for bulk orders of the 45x50mm size?

A: For bulk orders exceeding 500 units, please contact our sales team directly. Standard stock usually ships within 2-3 business days for smaller quantities.

Q: Can these bushings be used in submerged water conditions?

A: While they are water-resistant and suitable for wet farm environments, continuous submersion is not recommended as it may eventually wash out the lubricating PTFE transfer film over extended periods.

Q: Are these compatible with stainless steel shafts?

A: Yes, these composite bushings work excellently with stainless steel shafts, providing low friction and preventing galling even under high loads.

Q: What tool is required for installation?

A: Due to the interference fit design, we recommend using an arbor press or a hydraulic press to install the bushing evenly without damaging the soft inner lining.

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