Manufactured by CHG Bearing, the 61852 is a precision Deep Groove Ball Bearings（618 / 619 SERIES）. Key dimensional parameters include a 260 mm bore diameter, a 320 mm outer diameter, and a 28 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.
61852 - Deep Groove Ball Bearings（618 / 619 SERIES）
Technical Specifications
| Overview | |
|---|---|
| Part Number | 61852 |
| 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) | 260 mm |
| Width (B) | 28 mm |
| Outer Diameter (D) | 320 mm |
| Bore Diameter Tolerance | -0.035-0 mm |
| Outside Diameter Tolerance | -0.04-0 mm |
| Width Tolerance | -0.35-0 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 101 kN |
| Basic Static Radial Load Rating C0r (kN) | 148 kN |
| Limiting Speed – Grease (r/min) | 1700 r/min |
| Limiting Speed – Oil (r/min) | 2000 (r/min) |
| Material | |
| Mass (kg) | 4.84 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 | 0.035-0.105 mm |
61852 320 mm 260 mm 28 mm Frequently Asked Questions about 61852 Deep Groove Ball Bearings（618 / 619 SERIES）
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing 61852 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.
In its sealed configuration (Open / Contact Seal Options), CHG Bearing pre-charges 61852 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
To extend the trouble-free lifespan of CHG Bearing 61852, 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.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for 61852, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
