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Timken A4059-A4138 Tapered Roller Set
Part Number:
A4059-A4138
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Timken A4059-A4138 Tapered Roller Set — Precision Small-Bore Bearing for Saudi Industrial Instruments The Timken A4059-A4138 is a precision small-bore tapered roller bearing set with a 14.989mm (15mm) bore — one of the smallest Timken metric tapered bearings in industrial use. Despite its compact di…
About Timken A4059-A4138 Tapered Roller Set
Timken A4059-A4138 Tapered Roller Set — Precision Small-Bore Bearing for Saudi Industrial Instruments
The Timken A4059-A4138 is a precision small-bore tapered roller bearing set with a 14.989mm (15mm) bore — one of the smallest Timken metric tapered bearings in industrial use. Despite its compact dimensions, the A4059-A4138 handles significant combined radial and axial loads relative to its size, making it ideal for precision industrial applications across Saudi Arabia's advanced manufacturing, instrumentation, and medical equipment sectors.
Saudi Arabia's growing industrial automation and instrumentation sector — including factory automation integrators in Riyadh's industrial cities and precision equipment maintenance in Jeddah manufacturing zones — uses A4059-A4138 in small precision gearboxes, instrument shafts, and high-speed spindle applications where space constraints require compact yet capable bearing solutions.
Applications
Precision Gearboxes: Small NEMA 23/34 stepper motor gearboxes and precision reducers used in Saudi CNC machine tools and automation equipment use A4059-A4138 for input and output shaft support.
Medical Equipment: Diagnostic and imaging equipment maintenance in Saudi hospitals and medical manufacturing facilities uses A4059-A4138 for precision rotating components.
Instrumentation: Precision flow meter shafts and analytical instrument rotating parts in Saudi Arabian process industry laboratories.
Technical Specifications
| Type | Tapered Roller Set (Cone + Cup) |
| Brand | Timken |
| Weight | 0.065 kg |
| Material | Case-hardened steel |
| OD (Cup) | 34.988 mm |
| Width (T) | 10.998 mm |
| Bore (Cone) | 14.989 mm |
| Temperature | -40°C to +120°C |
| Limiting Speed | 9,500 rpm |
| Static Load Rating | 11.8 kN |
| Dynamic Load Rating | 15.3 kN |
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