Manufactured by CHG Bearing, the 61936 is a precision Deep Groove Ball Bearings（618 / 619 SERIES）. Key dimensional parameters include a 180 mm bore diameter, a 250 mm outer diameter, and a 33 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.
61936 - Deep Groove Ball Bearings（618 / 619 SERIES）
Technical Specifications
| Overview | |
|---|---|
| Part Number | 61936 |
| 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) | 180 mm |
| Width (B) | 33 mm |
| Outer Diameter (D) | 250 mm |
| Bore Diameter Tolerance | -0.025-0 mm |
| Outside Diameter Tolerance | -0.03-0 mm |
| Width Tolerance | -0.25-0 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 119 kN |
| Basic Static Radial Load Rating C0r (kN) | 133 kN |
| Limiting Speed – Grease (r/min) | 2200 r/min |
| Limiting Speed – Oil (r/min) | 2800 (r/min) |
| Material | |
| Mass (kg) | 4.16 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 | 0.02-0.061 mm |
61936 250 mm 180 mm 33 mm Frequently Asked Questions about 61936 Deep Groove Ball Bearings（618 / 619 SERIES）
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Quality starts with raw material selection: CHG Bearing crafts 61936 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
As standard production, CHG Bearing subjects 61936 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
Engineered according to international ISO boundary plans, CHG Bearing supplies 61936 with a precision bore diameter (d) of 180 mm, an outside diameter (D) of 250 mm, and a nominal ring width (B) of 33 mm. This configuration yields an effective cross-sectional wall thickness of 35.0 mm and an envelope ratio (D/d) of 1.39, delivering compact rigidity for OEM machinery housings.
To match diverse operational dynamics, CHG Bearing supplies 61936 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.
