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Isostatic Oilube® Bearings / Bushings
  • Standard stock products
  • SAE 841-copper (87-90%), tin (8-9), carbon, other elements
  • Powdered metal bronze providing interconnected reservoirs for oil
  • Vacuum impregnated with SAE 30 oil during the manufacturing process (approx. 19% by vol.)
  • Self-lubricating – when in motion oil rises to the surface for lubrication and restores itself when at rest
  • Ideal for heavy loads at moderate speeds or light loads at high speeds – max Pv 50,000, P-Load 2,000, V-SFM-1,200
  • Effective in temperature range of +10°F to + 175°F with standard oil
  • Available in oils for other temperature ranges on a made-to-order basis
  • Standard tolerances vary by size. See items for specific tolerances
  • RoHS, REACH, DFARS compliant
Unit of Measure


Detailed Description

N/A 4 MM I.D. x 8 MM O.D. x 4 MM Length, SAE 841 Powdered Metal Bronze, Sleeve Bearing, Metric


Catalog Number

N/A AM-408-4

Interchange #

N/A 4-8x4

Unit of Measure

N/A Each


N/A Powdered Metal / Oil Impregnated Bronze

Material Standard

N/A SAE 841

Avg Unit Weight

N/A 0.0022 lb

UPC Code

N/A 00846802058623


Nominal Inner Diameter

N/A 4 mm

Nominal Outer Diameter

N/A 8 mm

Nominal Length

N/A 4 mm


Inner Diameter Tolerance

N/A +0 to +.02 mm

Outside Diameter Tolerance

N/A +.019 to +.04 mm

Overall Length Tolerance

N/A ±.12 mm

Performance Data

Load - P Max Value

N/A 2,000 lb/in²

Speed - V Max Value

N/A 1,200 ft²/min

Load at Speed - PV Max Value (P.S.I. / S.F.M.)

N/A 50,000
Isostatic Industries, Inc. | Leaders in Bronze Bearings...and More