Manufactured by CHG Bearing, the 61884 is a precision Deep Groove Ball Bearings（618 / 619 SERIES）. Key dimensional parameters include a 420 mm bore diameter, a 520 mm outer diameter, and a 46 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.
61884 - Deep Groove Ball Bearings（618 / 619 SERIES）
Technical Specifications
| Overview | |
|---|---|
| Part Number | 61884 |
| 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) | 420 mm |
| Width (B) | 46 mm |
| Outer Diameter (D) | 520 mm |
| Bore Diameter Tolerance | -0.045-0 mm |
| Outside Diameter Tolerance | -0.05-0 mm |
| Width Tolerance | -0.45-0 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 245 kN |
| Basic Static Radial Load Rating C0r (kN) | 410 kN |
| Limiting Speed – Grease (r/min) | 950 r/min |
| Limiting Speed – Oil (r/min) | 1200 (r/min) |
| Material | |
| Mass (kg) | 21.4 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 | 0.065-0.170 mm |
61884 520 mm 420 mm 46 mm Frequently Asked Questions about 61884 Deep Groove Ball Bearings（618 / 619 SERIES）
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing 61884 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (420 mm x 520 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
The Open / Contact Seal Options engineered for 61884 by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
Engineered according to international ISO boundary plans, CHG Bearing supplies 61884 with a precision bore diameter (d) of 420 mm, an outside diameter (D) of 520 mm, and a nominal ring width (B) of 46 mm. This configuration yields an effective cross-sectional wall thickness of 50.0 mm and an envelope ratio (D/d) of 1.24, delivering compact rigidity for OEM machinery housings.
Standard batches of CHG Bearing 61884 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.
