AL202420 Flanged Metric Oilite Bearing

Model:  AL202420
Brand:  Oilite
Metric / Imperial:  Metric (mm)
Internal Diameter:  20mm
Outside Diameter:  24mm
Length:  20mm
Flange Outside Diameter:  30mm
Flange Thickness:  3mm
ID tolerance:  Min: 20.007mm Max: 20.028mm (G7)
OD tolerance:  Min: 24.035mm Max: 24.056mm (s7)
Length tolerance:  Min: 19.835mm Max: 20.165mm (js13)
Flange OD tolerance:  Min: 29.835mm Max: 30.165mm (js13)
Flange thickness tolerance:  Min: 2.93mm Max: 3.07mm (js13)
Recommended shaft tolerance:  Min: 19.959mm Max: 19.98mm (f7)
Recommended housing tolerance:  Min: 24mm Max: 24.021mm (H7)
ID when fitted:  Min: 20mm Max: 20.021mm (H7)
Recommended fitting pin tolerance:  Min: 20.008mm Max: 20.017mm (m5)

Alternative or equivalent part numbers: AL2024-20, AMF202420, FBM37x20, 20/24x20-30x3

Standard Oilite(tm) Material is made from Oil impregnated sintered bronze.

The chemical composition for standard Oilite material is within the following:

Copper: Balance

Iron: 1% Max

Carbon: 3% Max

Tin: 9-11%

Max. Other Elements. 2%

Open Porosity Minimum: 20-27%

Minimum Oil Content: 18-24%

Minimum Radial Crushing Strength K: 120-180 N/mm²

Nominal Density: 6-7g/cc

Maximum static load: 35-65 N/mm²

Maximum dynamic load: 10-18 N/mm²

Maximum velocity: 5-6 m/s

Maximum PV factor*: 1.8

*PV factor = Pressure (N/mm²) x bearing surface velocity (m/s).

Pressure is calculated as load (N) / Projected area (internal diameter x Length) (mm)

There are several more specific specs for specific parts which fall within the above specification. please

contact us for more details if required.

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