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6300 Series

Single-row deep groove ball bearings are a typical structural type among rolling bearings. The raceways on both the inner and outer rings are circular arcs, with a cross-sectional radius slightly larger than the ball radius. The 6300 series are medium-to-large standard types, featuring larger outer diameters and widths compared to the 6200 series, with significantly improved load-carrying capacity, making them suitable for medium and above load conditions. In addition to open types, bearings with steel shield plates or with snap rings on the outer diameter of the outer ring are also available. They generally use pressed steel cages. For large-sized bearings or those used in high-speed rotation, machined brass cages are adopted.

Features

  • Higher load-carrying capacity than the 6200 series, suitable for medium-load applications.
  • Outstanding radial load capacity, while also capable of supporting certain bidirectional axial loads.
  • Complete size series with a wide selection range.
  • Sealed types and snap-ring types accommodate different mounting requirements.
Application Examples
With low friction torque, they are ideal for medium-load, high-speed, and low-noise applications. Industrial motors, gearboxes, pump equipment, agricultural machinery (harvesters, seeders), woodworking machinery, conveyor belt rollers, blowers, air compressors, and more.

Model Overall dimensions Basic rated load Coefficient Weight
d D B r (min.) Cr C0r F₀ Mass
mm mm mm mm N N ⁿ/ₐ kg
6310N 50 110 27 2 62000 38500 13.2 1.06
6310-2RS 50 110 27 2 65000 38500 13.2 1.06
6309-2Z 45 100 25 1.5 55500 32000 13.1 0.829
6309-2RZ 45 100 25 1.5 55500 32000 13.1 0.829
6309NR 45 100 25 1.5 53000 32000 13.1 0.829
6309N 45 100 25 1.5 53000 32000 13.1 0.829
6309-2RS 45 100 25 1.5 55500 32000 13.1 0.829
6308-2Z 40 90 23 1.5 43000 24000 13.2 0.636
6308-2RZ 40 90 23 1.5 43000 24000 13.2 0.636
6308NR 40 90 23 1.5 40500 24000 13.2 0.636
6308N 40 90 23 1.5 40500 24000 13.2 0.636
6308-2RS 40 90 23 1.5 43000 24000 13.2 0.636
6307-2Z 35 80 21 1.5 35000 19200 13.2 0.464
6307-2RZ 35 80 21 1.5 35000 19200 13.2 0.464
6307NR 35 80 21 1.5 33500 19200 13.2 0.464
6307N 35 80 21 1.5 33500 19200 13.2 0.464
6307-2RS 35 80 21 1.5 35000 19200 13.2 0.464
6306-2Z 30 72 19 1.1 28000 15000 13.3 0.345
6306-2RZ 30 72 19 1.1 28000 15000 13.3 0.345
6306NR 30 72 19 1.1 26700 15000 13.3 0.345

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