SAE 841 Sintered Bronze Sleeve Bushings

Oil-impregnated, self-lubricating bronze per ASTM B438. Standard and custom sizes.

Over 900 standard sizes from 1/8" to 5" ID, with OD from 3/16" to 5-3/4". Use the filterable table below to select dimensions and quantities, then submit a quote request.

Need modifications to standard bushings? We machine sintered stock to meet your specific tolerances. For high-volume production runs, custom pressing reduces per-unit cost. See Custom Options for details.

Don't see your size? We produce custom sintered components to your specifications. Request a Custom Machining Quote or call 888-722-8260.

SAE 841 sintered bronze sleeve bushing, oil-impregnated

Select Bushing Sizes and Request a Quote

Filter standard sizes below to build your quote, or contact us for custom machining and non-standard dimensions.

Part # I.D. O.D. Length Qty Request Quote

SAE 841 sintered bronze is the primary choice for self-lubricating bearings in automated machinery and home appliances due to its maintenance-free, high-speed/low-load performance. The oil-impregnated porous structure handles speeds up to 1,200 SFM without external lubrication—ideal for dispersed joints, harsh environments, and high-cycle operations where routine greasing isn't practical.

Agricultural Equipment

Tractors, combines, harvesters, planters, mower decks, balers. Agricultural equipment has dozens of pivot points spread across the machine. Manual lubrication on a 40-joint linkage system isn't practical during harvest season. SAE 841 bushings deliver continuous lubrication to loader arm pivots, three-point hitch connections, and steering linkages without daily grease gun attention. The self-lubricating action activates at speeds as low as 200 SFM, making these well-suited for the oscillating, start-stop motion common in ag applications.

Material Handling

Forklift mast guides, crane sheaves, pallet jack wheels, conveyor idlers, hoist mechanisms. Material handling equipment operates continuously in dusty, dirty environments where external lubricants attract contamination. Oil-impregnated bushings keep working shift after shift. With load capacity to 2,000 PSI and speed capacity to 1,200 SFM, SAE 841 handles the repetitive cycling in lift mechanisms and roller conveyors without lubrication downtime.

HVAC and Motor Applications

Fan motor shaft bushings, blower assemblies, damper pivots, ventilation equipment. HVAC applications need quiet operation and long service life in locations that are difficult to access. Oil-impregnated sintered bronze provides a smooth, consistent bearing surface that reduces noise while eliminating routine re-lubrication in ceiling-mounted or ducted equipment.

Construction and Mining Equipment

Excavator boom pivots, loader bucket pins, bulldozer track adjusters, mining conveyor systems. Heavy equipment operates in dust, mud, and extreme conditions where exposed lubricants wash away or attract abrasive particles. SAE 841 bushings maintain internal lubrication even when external conditions are severe. They're commonly specified for secondary pivot points that don't justify the maintenance schedule required by high-load primary joints.

Industrial Machinery / Manufacturing Equipment

Pump shafts, gearbox components, machine tool slides, CNC auxiliary mechanisms, press guides. Manufacturing equipment needs consistent performance across thousands of operating hours. Oil-impregnated bushings work well in auxiliary systems where loads stay within the 2,000 PSI limit and speeds remain moderate. OEM machine builders commonly specify them for components that won't require field lubrication.

Packaging and Printing

Filling heads, sealing arm pivots, folding mechanisms, print press guide rollers. Packaging lines run 200+ cycles per minute where external lubrication can't keep pace. Self-lubricating bushings maintain consistent performance during continuous high-speed operation. The porous bronze matrix releases oil on demand, matching the lubrication rate to actual operating speed.

Pumps and Valves

Valve stem guides, pump shaft bearings, actuator linkages. Fluid handling applications often need bushings that perform without adding lubricant contamination to the process. SAE 841 bronze provides corrosion resistance and self-lubrication in water pump applications and light-duty hydraulic equipment where loads stay within the material's capacity.

Need a Non-Standard Size?

Upload your drawing with the details. We'll review it and get back to you with pricing.

Custom Machining Request Quote

Custom Pressed to Your Specifications

For production quantities requiring non-standard dimensions, we can create sintered bronze sleeve bushings pressed to your exact specifications. The powder metallurgy process compacts oil-impregnated bronze powder into a custom die, then sinters at high temperature to bond the particles while preserving the porous, self-lubricating structure.

Process Overview

  • Custom tooling created from your specifications
  • Bronze powder compacted under high pressure
  • Sintering bonds particles without liquefying
  • Oil impregnation fills interconnected pores
  • Finished parts maintain consistent density and self-lubricating properties

Best Suited For

  • Production volumes where tooling cost can be amortized
  • Applications requiring tight dimensional tolerances
  • Designs needing consistent part-to-part repeatability

Machined from Sintered Bronze Bar Stock

For lower quantities, prototypes, or one-off requirements, we machine custom sleeve bushings from oil-impregnated sintered bronze bar stock. The bar stock is manufactured through the same powder metallurgy process and arrives pre-impregnated with lubricating oil, maintaining the self-lubricating properties in your finished part.

Advantages

  • No tooling investment required
  • Faster turnaround than custom pressing
  • Ideal for prototypes and short production runs
  • Same self-lubricating material properties as pressed parts

Frequently Asked Questions

Expert answers to common technical questions about sintered bronze sleeve bushings.