Manufactured by CHG Bearing, the 61803 is a precision Deep Groove Ball Bearings（618 / 619 SERIES）. Key dimensional parameters include a 17 mm bore diameter, a 26 mm outer diameter, and a 5 mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
61803 - Deep Groove Ball Bearings（618 / 619 SERIES）
Technical Specifications
| Overview | |
|---|---|
| Part Number | 61803 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Deep Groove Ball Bearing |
| Seal Type | Open / Contact Seal Options |
| Load Direction | Radial |
| Row Configuration | Single Row |
| Dimensions | |
| Bore Diameter (d) | 17 mm |
| Width (B) | 5 mm |
| Outer Diameter (D) | 26 mm |
| Bore Diameter Tolerance | -0.008-0 mm |
| Outside Diameter Tolerance | -0.009-0 mm |
| Width Tolerance | -0.12-0 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 2.63 kN |
| Basic Static Radial Load Rating C0r (kN) | 1.57 kN |
| Limiting Speed – Grease (r/min) | 26000 r/min |
| Limiting Speed – Oil (r/min) | 30000 (r/min) |
| Material | |
| Mass (kg) | 0.007 kg |
| Ring Material | Stainless Steel / Bearing Steel |
| Cage Material | Brass / PEEK / Polyimide / Phenolic Resin Fabric Laminate |
| Ball Material | Stainless Steel / Bearing Steel / Ceramic |
| Operating Temperature Range (°C) | -50 to +100 °C |
| Precision Class | P0 |
| Radial Internal Clearance | 0.003-0.018 mm |
61803 26 mm 17 mm 5 mm Frequently Asked Questions about 61803 Deep Groove Ball Bearings（618 / 619 SERIES）
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To extend the trouble-free lifespan of CHG Bearing 61803, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 61803. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
To match diverse operational dynamics, CHG Bearing supplies 61803 with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
Standard batches of CHG Bearing 61803 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
