Manufactured by CHG Bearing, the 61911 is a precision Deep Groove Ball Bearings（618 / 619 SERIES）. Key dimensional parameters include a 55 mm bore diameter, a 80 mm outer diameter, and a 13 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.
61911 - Deep Groove Ball Bearings（618 / 619 SERIES）
Technical Specifications
| Overview | |
|---|---|
| Part Number | 61911 |
| 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) | 55 mm |
| Width (B) | 13 mm |
| Outer Diameter (D) | 80 mm |
| Bore Diameter Tolerance | -0.015-0 mm |
| Outside Diameter Tolerance | -0.013-0 mm |
| Width Tolerance | -0.15-0 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 16 kN |
| Basic Static Radial Load Rating C0r (kN) | 13.3 kN |
| Limiting Speed – Grease (r/min) | 8000 r/min |
| Limiting Speed – Oil (r/min) | 9500 (r/min) |
| Material | |
| Mass (kg) | 0.189 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 | 0.008-0.028 mm |
61911 80 mm 55 mm 13 mm Frequently Asked Questions about 61911 Deep Groove Ball Bearings（618 / 619 SERIES）
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing 61911 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for 61911, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
Every production batch of CHG Bearing 61911 Deep Groove Ball Bearings（618 / 619 SERIES） comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
The Open / Contact Seal Options engineered for 61911 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.
