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When a single-row bearing simply cannot handle the combined axial and radial forces in your application, engineers and serious DIYers turn to double row angular contact ball bearings. The 5300–5307 series is designed for machinery, power tools, conveyor systems, and precision equipment where shaft stability and load capacity are non-negotiable.
Each bearing in this series is manufactured from bearing-grade steel and features a double-row ball complement housed in a pressed steel cage. Available in rubber-sealed (2RS) and metal-shielded (ZZ) configurations, bore diameters range from 10 mm (0.39 in) to 35 mm (1.38 in), with outer diameters from 35 mm (1.38 in) to 80 mm (3.15 in) and widths from 19 mm (0.75 in) to 34.9 mm (1.37 in).
Typical use cases include electric motor shaft support requiring double row angular contact bearing replacement, gearbox input shaft applications needing 5300 series bearing, and pump or compressor assemblies where dual sealed bearing steel construction resists contamination and extends service intervals.
Two rows of balls distribute axial and radial loads simultaneously, providing greater rigidity and load capacity than single-row designs — ideal for applications with combined loading.
2RS variants use contact rubber seals to block dust, moisture, and contaminants. ZZ variants use non-contact metal shields for lower friction in cleaner, higher-speed environments.
Races and balls are machined from bearing-grade steel, delivering the hardness and fatigue resistance required for continuous-duty rotating machinery.
Bore diameters from 10 mm to 35 mm cover a wide range of shaft sizes, making this series suitable for light-duty instruments up to medium industrial machinery.
Each bearing is factory-greased and sealed or shielded, so it can be installed directly into your housing without additional lubrication steps.
Bore, outer diameter, and width conform to standard 5300-series dimensional specifications, ensuring drop-in compatibility with existing housings and shafts.
| Bearing Series | 5300–5307 |
|---|---|
| Type | Double Row Angular Contact Ball Bearing |
| Seal / Shield Type | 2RS (Rubber Sealed) / ZZ (Metal Shielded) |
| Material | Bearing Steel |
| Bore Diameter (d) | 10 mm – 35 mm (0.39 in – 1.38 in) |
| Outer Diameter (D) | 35 mm – 80 mm (1.38 in – 3.15 in) |
| Width (B) | 19 mm – 34.9 mm (0.75 in – 1.37 in) |
| Lubrication | Factory pre-greased |
| Cage Type | See variant options |
| Dynamic Load Rating (C) | See variant options |
| Static Load Rating (C0) | See variant options |
| Max Speed | See variant options |
| Operating Temperature | –20°C to +120°C (–4°F to +248°F) typical for 2RS; higher for ZZ |
| Quantity per Order | 1 piece |
Match the bore diameter (d) to your shaft diameter and the outer diameter (D) to your housing bore. Check the variant list for exact dimensions in the format: bore × outer diameter × width (mm). If your shaft is 10 mm, select 5300; for a 35 mm shaft, select 5307.
2RS bearings use contact rubber seals on both sides, providing superior protection against dust and moisture — ideal for dirty or wet environments. ZZ bearings use non-contact metal shields, which generate less friction and suit higher-speed, cleaner applications. Both variants come pre-greased.
Yes. The double row design handles combined axial and radial loads that would exceed the capacity of a single-row bearing. Bearing steel construction provides the hardness and fatigue life required for continuous-duty use in motors, gearboxes, pumps, and conveyors.
Bearing steel offers good corrosion resistance in dry and lightly humid environments. For applications exposed to water, chemicals, or salt spray, consider stainless steel bearings. The 2RS rubber seal provides an additional barrier against moisture ingress compared to the ZZ shield.
Yes. The outer diameter and width conform to standard 5300-series dimensional specifications, so these bearings are direct replacements for existing housings. Always verify the exact bore, OD, and width from the variant name before ordering to confirm fitment.
No. Each bearing is factory pre-greased and sealed or shielded at the point of manufacture. Install directly into your housing. Do not wash out the factory grease — doing so will reduce bearing life.
Yes. The 5300 series is commonly used in electric motor shaft support, power tool spindles, and small gearbox input shafts. Select the 2RS variant for dusty environments and the ZZ variant where lower drag is needed at higher RPM.
