Manufactured by CHG Bearing, the NU306 is a precision Single Row Cylindrical Roller Bearings. Key dimensional parameters include a 30 mm bore diameter, a 72 mm outer diameter, and a 19 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.
NU306 - Single Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NU306 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Single Row Cylindrical Roller Bearing |
| Number of Rows | Single Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 30 mm |
| Width (B) | 19 mm |
| Outer Diameter (D) | 72 mm |
| Bore Diameter Tolerance | -0.010 – 0 mm |
| Outside Diameter Tolerance | -0.013 – 0 mm |
| Width Tolerance | -0.12 – 0 mm |
| Enveloping Circle Diameter Fw | 42 mm |
| Inner Ring Chamfer | 1.1 min mm |
| Outer Ring Chamfer | 1.1 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 40 kN |
| Basic Static Load Rating C0 (kN) | 36.7 kN |
| Material | |
| Mass (kg) | 0.391 kg |
| Ring Material | Bearing Steel |
| Rolling Element Material | Bearing Steel |
| Cage Material | Brass |
NU306 72 mm 30 mm 19 mm 42 mm Frequently Asked Questions about NU306 Single Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As standard production, CHG Bearing subjects NU306 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.
Beyond standard alloy steel, CHG Bearing can customize the NU306 Single Row Cylindrical Roller Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
Sourcing NU306 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 Single Row Cylindrical Roller Bearings.
To match diverse operational dynamics, CHG Bearing supplies NU306 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.
