L15WA412 Bore 4.75 Inch, Imperial Open Type A, Angular Contact Ball Bearings
The L15WA412 Thin-section angular contact ball bearings are primarily used in applications with stringent requirements for weight, space, and precision, such as aerospace gyroscopes, robotic joints, medical CT scanner gantries, machine tool spindles, semiconductor manufacturing equipment, optical instruments (e.g., telescopes), and precision rotary tables.
The L15WA412 bearing is a Inch Open Type A Angular Contact Ball Bearings with an inner diameter of 4.75 inch , an outer diameter of 6.75 inch, a width of 1 inch. It typically uses ISO Class NORMAL / ABEC-1 grade precision tolerances and AISI 52100 Steel rings, AISI 52100 Steel rolling mlement. Its dynamic radial rated load is approximately 6745 N, its static radial rated load is approximately 10900 N. Its dynamic axial rated load is approximately 66587 N, its static axial rated load is approximately 139934 N. Open (No seal) type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Interchange code: KAYDON KDN.KG047AR0, SILVERTHIN SG047AR0, SKF FPAG412, FAG L15WA412, NSK NBA12025, INA CSEG047, SSB RG047AR0, NTN KYG047
L15WA412 bearings ( 4.75 inch x 6.75 inch x 1 inch) have the advantages of Extremely compact, lightweight design, composite load-bearing capacity, high rigidity, and flexible installation, and are therefore widely used in the Robot joints, aerospace, semiconductor equipment, medical instruments and optoelectronic turntables.
| Part Number | L15WA412 |
| Bearing Type | Inch Open Type A Angular Contact Ball Bearings |
| Equivalent | KAYDON KDN.KG047AR0 SILVERTHIN SG047AR0 SKF FPAG412 FAG L15WA412 NSK NBA12025 INA CSEG047 SSB RG047AR0 NTN KYG047 |
| Interchangeable | FAG L15WA412 |
| Cage | Brass; one piece pocket separator |
| Series | L15WA SERIES 1" X 1" |
| Balls | standard 1/2" balls |
| Race Width Tolerance | +0.000 -0.005" |
| Contact angle [°] | 30 |
| Seal type | Open (No seal) |
| Units | Inch |
| Precision Class | ISO Class NORMAL / ABEC-1 |
| Rows NO. | One |
| B φ Inside [inch] | 4.75 |
| D Φ Outside [inch] | 6.75 |
| Width [inch] | 1 |
| L1 [inch] | 5.492 |
| L2 [inch] | 6.008 |
| L3 [inch] | 6.239 |
| (Note 2) max | 0.080" |
| RADIAL DYNAMIC [lbf] | 6745 |
| RADIAL STATIC [lbf] | 10900 |
| THRUST DYNAMIC [lbf] | 14968 |
| THRUST STATIC [lbf] | 31457 |
| APPROX WEIGHT [lb] | 4.1 |
The L15WA412 Thin-section angular contact ball bearings mainly consist of a thin-walled inner ring, a thin-walled outer ring, steel balls, and a cage. Their cross-sectional dimensions are constant and extremely thin, with contact angles typically of 15°, 25°, or 30°, making them suitable for space-constrained installations.
Thin-section angular contact ball bearings utilize a thin-walled, constant cross-section design, resulting in lightweight construction and a small footprint, effectively reducing the overall weight of equipment. They can simultaneously withstand radial and axial loads, possessing high rigidity, high-speed capability, and good positioning accuracy, and are easy to install.
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