52300 Series (Double Direction Medium)
Material: Chrome Steel (Gcr15)
Direction: Double Direction
Precision: P0, P6, P5
Structure: Flat Washer / Medium Series / Two Row
Cage: Pressed Steel / Brass
Bore Range: 10mm – 100mm
Application: Medium bidirectional thrust, vertical shaft positioning, crane slewing mechanisms
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The 52300 Series double-direction medium thrust ball bearings deliver enhanced bidirectional axial load support with a wider cross-section. The dual-row configuration eliminates the need for paired single-direction bearings while providing robust reversing thrust capability. Preferred for vertical shaft positioning systems and crane slewing mechanism thrust assemblies.
Technical Specifications
| Bearing No. | Bore (d) mm | Outer Dia. (D) mm | Width (B) mm | Dyn. Load Cr (kN) | Stat. Load Cor (kN) | Ref. Speed (rpm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 52305 | 25 | 52 | 34/11 | 37.4 | 73.5 | 3400 | 0.32 |
| 52306 | 30 | 60 | 38/12 | 42.5 | 88.5 | 3000 | 0.46 |
| 52308 | 35 | 68 | 44/14 | 55.0 | 120.0 | 2600 | 0.73 |
| 52310 | 50 | 95 | 58/18 | 86.0 | 200.0 | 1900 | 1.75 |
| 52311 | 55 | 105 | 64/20 | 99.0 | 225.0 | 1700 | 2.35 |
| 52312 | 60 | 110 | 64/20 | 108.0 | 255.0 | 1600 | 2.55 |
| 52314 | 70 | 125 | 72/22 | 128.0 | 315.0 | 1400 | 3.85 |
| 52315 | 75 | 135 | 79/24 | 148.0 | 365.0 | 1300 | 4.95 |
| 52316 | 80 | 140 | 79/24 | 158.0 | 400.0 | 1200 | 5.2 |
| 52317 | 85 | 150 | 87/26 | 178.0 | 450.0 | 1100 | 6.8 |
| 52318 | 90 | 155 | 88/26 | 188.0 | 490.0 | 1000 | 7.1 |
| 52320 | 100 | 170 | 97/30 | 208.0 | 560.0 | 950 | 9.3 |
