Aerospace Bearings

Aerospace Spherical Plain Bearings

Spherical Plain bearings are utilized in assemblies, links, rotors, wings, actuation, mounts, and many more uses.

Similar to the rod end products(,) they are available in Loader Slot, Split Ball, PTFE Lined, Long Life, Metal To Metal and Elastomeric Hybrids. Self-Lubricating or lined products work well in applications where the lubrication is not practical due to location or application limitations.

The most common industry standards for the spherical plain bearings is the Society of Automotive Engineers (SAE) AS81820 (formerly Mil-B-81820) and AS81936 (formerly Mil-B-81936).

Some examples of the spherical basic part numbers are
MS14101- ........ Narrow Lined Self-Lubricating Grooved Spherical
MS14102- ........ Wide Lined Self-Lubricating Chamfered Spherical
MS14103- ........ Wide Lined Self-Lubricating Grooved Spherical
MS14104- ........ Narrow Lined Self-Lubricating Chamfered Spherical
MS14101A- ..... Narrow Lined Self-Lubricating Grooved Spherical (LONG LIFE 100,000 CYCLES)
MS14102A- ..... Wide Lined Self-Lubricating Chamfered Spherical (LONG LIFE 100,000 CYCLES)
MS14103A- ..... Wide Lined Self-Lubricating Grooved Spherical (LONG LIFE 100,000 CYCLES)
MS14104A- ..... Narrow Lined Self-Lubricating Chamfered Spherical (LONG LIFE 100,000 CYCLES)
M81936 ............ Beryllium Copper Ball Spherical

Numerous options are available for special applications based on specific conditions, such as temperature, weight, load, misalignment and load strength factors.

Have special and custom requirements for your specific needs? Please contact us.

Narrow Lined Self-Lubricating Grooved Spherical Plain Bearing
Mil Spec
Governing Spec SAE-AS81820
Part Number Bore Inner Diameter Outer Diameter Ball Width Race Width Pitch Diameter Mis-Alignment
+.0000/-.0005 +.000/-.002 ±.005 +.000/-.008 Ref.
MS14101-3 0.190 0.563 0.281 0.218 0.500 10°
MS14101-4 0.250 0.656 0.343 0.250 0.594 10°
MS14101-5 0.313 0.750 0.375 0.281 0.650 10°
MS14101-5A 0.313 0.750 0.375 0.281 0.660 10°
MS14101-6 0.375 0.813 0.406 0.312 0.712
MS14101-7 0.438 0.906 0.437 0.343 0.806
MS14101-8 0.500 1.000 0.500 0.390 0.876
MS14101-9 0.563 1.094 0.562 0.437 0.970
MS14101-10 0.625 1.188 0.625 0.500 1.063
MS14101-12 0.750 1.438 0.750 0.593 1.313
MS14101-14 0.875 1.563 0.875 0.703 1.438
MS14101-16 1.000 1.750 1.000 0.797 1.626
Wide Lined Self-Lubricating Grooved Spherical Plain Bearing
Mil Spec
Governing Spec SAE-AS81820
Part Number Bore Inner Diameter Outer Diameter Ball Width Race Width Pitch Diameter Mis-Alignment
+.0000/-.0005 +.000/-.002 ±.005 +.000/-.008 Ref.
MS14103-3 0.190 0.625 0.437 0.327 0.563 15°
MS14103-4 0.250 0.625 0.437 0.327 0.563 15°
MS14103-5 0.313 0.688 0.437 0.317 0.625 14°
MS14103-6 0.375 0.813 0.500 0.406 0.712
MS14103-7 0.438 0.938 0.562 0.442 0.837 10°
MS14103-7A 0.438 0.906 0.562 0.442 0.806 10°
MS14103-8 0.500 1.000 0.625 0.505 0.900
MS14103-9 0.563 1.125 0.687 0.536 1.025 10°
MS14103-10 0.625 1.188 0.750 0.567 1.087 12°
MS14103-12 0.750 1.375 0.875 0.630 1.251 13°
MS14103-14 0.875 1.625 0.875 0.755 1.501
MS14103-16 1.000 2.125 1.375 1.005 2.001 12°
Narrow Lined Self-Lubricating Grooved Spherical Plain Bearing
Long Life 100,000 CYCLES
Governing Spec SAE-AS81820
Part Number Bore Inner Diameter Outer Diameter Ball Width Race Width Pitch Diameter Mis-Alignment
+.0000/-.0005 +.000/-.002 ±.005 +.000/-.008 Ref.
MS14101A-3 0.190 0.563 0.281 0.218 0.500 10°
MS14101A-4 0.250 0.656 0.343 0.250 0.594 10°
MS14101A-5 0.313 0.750 0.375 0.281 0.650 10°
MS14101A-5A 0.313 0.750 0.375 0.281 0.660 10°
MS14101A-6 0.375 0.813 0.406 0.312 0.712
MS14101A-7 0.438 0.906 0.437 0.343 0.806
MS14101A-8 0.500 1.000 0.500 0.390 0.876
MS14101A-9 0.563 1.094 0.562 0.437 0.970
MS14101A-10 0.625 1.188 0.625 0.500 1.063
MS14101A-12 0.750 1.438 0.750 0.593 1.313
MS14101A-14 0.875 1.563 0.875 0.703 1.438
MS14101A-16 1.000 1.750 1.000 0.797 1.626
Wide Lined Self-Lubricating Grooved Spherical Plain Bearing
Long Life 100,000 CYCLES
Governing Spec SAE-AS81820
Part Number Bore Inner Diameter Outer Diameter Ball Width Race Width Pitch Diameter Mis-Alignment
+.0000/-.0005 +.000/-.002 ±.005 +.000/-.008 Ref.
MS14103A-3 0.190 0.625 0.437 0.327 0.563 15°
MS14103A-4 0.250 0.625 0.437 0.327 0.563 15°
MS14103A-5 0.313 0.688 0.437 0.317 0.625 14°
MS14103A-6 0.375 0.813 0.500 0.406 0.712
MS14103A-7 0.438 0.938 0.562 0.442 0.837 10°
MS14103A-7A 0.438 0.906 0.562 0.442 0.806 10°
MS14103A-8 0.500 1.000 0.625 0.505 0.900
MS14103A-9 0.563 1.125 0.687 0.536 1.025 10°
MS14103A-10 0.625 1.188 0.750 0.567 1.087 12°
MS14103A-12 0.750 1.375 0.875 0.630 1.251 13°
MS14103A-14 0.875 1.625 0.875 0.755 1.501
MS14103A-16 1.000 2.125 1.375 1.005 2.001 12°
Narrow Lined Self-Lubricating Chamfered Spherical Plain Bearing
Mil Spec
Governing Spec SAE-AS81820
Part Number Bore Inner Diameter Outer Diameter Ball Width Race Width Chamfer Type Mis-Alignment
+.0000/-.0005 +.000/-.002 ±.005 x 45° Ref.
MS14104-3 0.190 0.563 0.281 0.218 .010
.020
10°
MS14104-4 0.250 0.656 0.343 0.250 .010
.020
10°
MS14104-5 0.313 0.750 0.375 0.281 .010
.020
10°
MS14104-5A 0.313 0.750 0.375 0.281 .020
.030
10°
MS14104-6 0.375 0.813 0.406 0.312 .020
.030
MS14104-7 0.438 0.906 0.437 0.343 .020
.030
MS14104-8 0.500 1.000 0.500 0.390 .020
.030
MS14104-9 0.563 1.094 0.562 0.437 .020
.030
MS14104-10 0.625 1.188 0.625 0.500 .020
.030
MS14104-12 0.750 1.438 0.750 0.593 .030
.040
MS14104-14 0.875 1.563 0.875 0.703 .030
.040
MS14104-16 1.000 1.750 1.000 0.797 .030
.040
Wide Lined Self-Lubricating Chamfered Spherical Plain Bearing
Mil Spec
Governing Spec SAE-AS81820
Part Number Bore Inner Diameter Outer Diameter Ball Width Race Width Chamfer Type Mis-Alignment
+.0000/-.0005 +.000/-.002 ±.005 x 45° Ref.
MS14102-3 0.190 0.625 0.437 0.327 .010
.020
15°
MS14102-4 0.250 0.625 0.437 0.327 .010
.020
15°
MS14102-5 0.313 0.688 0.437 0.317 .010
.020
14°
MS14102-6 0.375 0.813 0.500 0.406 .020
.030
MS14102-7 0.438 0.938 0.562 0.442 .020
.030
10°
MS14102-7A 0.438 0.906 0.562 0.442 .020
.030
10°
MS14102-8 0.500 1.000 0.625 0.505 .020
.030
MS14102-9 0.563 1.125 0.687 0.536 .020
.030
10°
MS14102-10 0.625 1.188 0.750 0.567 .020
.030
12°
MS14102-12 0.750 1.375 0.875 0.630 .030
.040
13°
MS14102-14 0.875 1.625 0.875 0.755 .030
.040
MS14102-16 1.000 2.125 1.375 1.005 .030
.040
12°
Narrow Lined Self-Lubricating Chamfered Spherical Plain Bearing
Long Life 100,000 CYCLES
Governing Spec SAE-AS81820
Part Number Bore Inner Diameter Outer Diameter Ball Width Race Width Chamfer Type Mis-Alignment
+.0000/-.0005 +.000/-.002 ±.005 x 45° Ref.
MS14104A-3 0.190 0.563 0.281 0.218 .010
.020
10°
MS14104A-4 0.250 0.656 0.343 0.250 .010
.020
10°
MS14104A-5 0.313 0.750 0.375 0.281 .010
.020
10°
MS14104A-5A 0.313 0.750 0.375 0.281 .020
.030
10°
MS14104A-6 0.375 0.813 0.406 0.312 .020
.030
MS14104A-7 0.438 0.906 0.437 0.343 .020
.030
MS14104A-8 0.500 1.000 0.500 0.390 .020
.030
MS14104A-9 0.563 1.094 0.562 0.437 .020
.030
MS14104A-10 0.625 1.188 0.625 0.500 .020
.030
MS14104A-12 0.750 1.438 0.750 0.593 .030
.040
MS14104A-14 0.875 1.563 0.875 0.703 .030
.040
MS14104A-16 1.000 1.750 1.000 0.797 .030
.040
Wide Lined Self-Lubricating Chamfered Spherical Plain Bearing
Long Life 100,000 CYCLES
Governing Spec SAE-AS81820
Part Number Bore Inner Diameter Outer Diameter Ball Width Race Width Chamfer Type Mis-Alignment
+.0000/-.0005 +.000/-.002 ±.005 x 45° Ref.
MS14102A-3 0.190 0.625 0.437 0.327 .010
.020
15°
MS14102A-4 0.250 0.625 0.437 0.327 .010
.020
15°
MS14102A-5 0.313 0.688 0.437 0.317 .010
.020
14°
MS14102A-6 0.375 0.813 0.500 0.406 .020
.030
MS14102A-7 0.438 0.938 0.562 0.442 .020
.030
10°
MS14102A-7A 0.438 0.906 0.562 0.442 .020
.030
10°
MS14102A-8 0.500 1.000 0.625 0.505 .020
.030
MS14102A-9 0.563 1.125 0.687 0.536 .020
.030
10°
MS14102A-10 0.625 1.188 0.750 0.567 .020
.030
12°
MS14102A-12 0.750 1.375 0.875 0.630 .030
.040
13°
MS14102A-14 0.875 1.625 0.875 0.755 .030
.040
MS14102A-16 1.000 2.125 1.375 1.005 .030
.040
12°
* Dimensions and Values provided are for reference only. A full specification can be obtained at the Society of Automotive Engineering website