Manufactured by CHG Bearing, the 61948 is a precision Deep Groove Ball Bearings（618 / 619 SERIES）. Key dimensional parameters include a 240 mm bore diameter, a 320 mm outer diameter, and a 38 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.
61948 - Deep Groove Ball Bearings（618 / 619 SERIES）
Technical Specifications
| Overview | |
|---|---|
| Part Number | 61948 |
| 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) | 240 mm |
| Width (B) | 38 mm |
| Outer Diameter (D) | 320 mm |
| Bore Diameter Tolerance | -0.03-0 mm |
| Outside Diameter Tolerance | -0.04-0 mm |
| Width Tolerance | -0.3-0 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 154 kN |
| Basic Static Radial Load Rating C0r (kN) | 190 kN |
| Limiting Speed – Grease (r/min) | 1800 r/min |
| Limiting Speed – Oil (r/min) | 2200 (r/min) |
| Material | |
| Mass (kg) | 8.49 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 | 0.03-0.095 mm |
61948 320 mm 240 mm 38 mm Frequently Asked Questions about 61948 Deep Groove Ball Bearings（618 / 619 SERIES）
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Sourcing 61948 directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Deep Groove Ball Bearings（618 / 619 SERIES）.
Built for demanding industrial environments, the 61948 Deep Groove Ball Bearings（618 / 619 SERIES） by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
Every production batch of CHG Bearing 61948 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.
To safeguard CHG Bearing 61948 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (240 mm x 320 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
