ASTM B438 Bearings | McMaster-Carr

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303 Products

Plain Bearings

Ultra-Low-Friction Oil-Embedded Sleeve Bearings

For applications with frequent starts and stops, the oil in these bearings contains particles of slippery PTFE that lubricate the bearing during startup.

Mil. Spec. Oil-Embedded Sleeve Bearings

To ensure compatibility with other parts, the materials and dimensions of these bearings meet strict military standards. Also known as Oilite® bearings, they are porous bronze, so startup friction causes them to release a thin layer of oil on the bearing’s surface.

Ultra-Low-Friction Oil-Embedded
Flanged Sleeve Bearings

For applications with frequent starts and stops, the oil in these bearings contains particles of slippery PTFE that lubricate the bearing during startup.

Mil. Spec. Oil-Embedded Flanged Sleeve Bearings

The materials and dimensions of these bearings meet strict military standards to ensure compatibility with other parts. Also known as Oilite® bearings, they are porous bronze, so startup friction causes them to release a thin layer of oil on the bearing’s surface.

Ultra-Low-Friction Oil-Embedded Thrust Bearings

For applications with frequent starts and stops, the oil in these bearings contains particles of slippery PTFE that lubricate the bearing during startup.

Self-Lubricating 840 and 841 Bearing Bronze

Oil-Filled 841 Bearing Bronze Tubes

Powdered bronze is pressed and then impregnated with SAE 30 oil to make this material self-lubricating.

Oil-Filled 841 Bearing Bronze Rods

Powdered bronze is pressed and then impregnated with SAE 30 oil to make this material self-lubricating.

Oil-Filled 840 and 841 Bearing Bronze Sheets

Powdered bronze is pressed and then impregnated with SAE 30 oil to make this material self-lubricating.

High-Temperature Graphite-Filled
841 Bearing Bronze Rods

An excellent alternative to oil-filled bronze, graphite-filled bronze provides dry lubrication in temperatures as high as 700° F.

High-Temperature Graphite-Filled
841 Bearing Bronze Tubes

An excellent alternative to oil-filled bronze, graphite-filled bronze provides dry lubrication in temperatures as high as 700° F.

Plain Bearings

Ultra-Low-Friction Oil-Embedded Sleeve Bearings

Mil. Spec. Oil-Embedded Sleeve Bearings

Ultra-Low-Friction Oil-EmbeddedFlanged Sleeve Bearings

Mil. Spec. Oil-Embedded Flanged Sleeve Bearings

Ultra-Low-Friction Oil-Embedded Thrust Bearings

Self-Lubricating 840 and 841 Bearing Bronze

Oil-Filled 841 Bearing Bronze Tubes

Oil-Filled 841 Bearing Bronze Rods

Oil-Filled 840 and 841 Bearing Bronze Sheets

High-Temperature Graphite-Filled841 Bearing Bronze Rods

High-Temperature Graphite-Filled841 Bearing Bronze Tubes

Ultra-Low-Friction Oil-Embedded
Flanged Sleeve Bearings

High-Temperature Graphite-Filled
841 Bearing Bronze Rods

High-Temperature Graphite-Filled
841 Bearing Bronze Tubes