51300 Series (Single Direction Heavy)
Material: Chrome Steel (Gcr15)
Direction: Single Direction
Precision: P0, P6, P5
Structure: Flat Washer / Heavy Series
Cage: Pressed Steel / Brass
Bore Range: 10mm – 100mm
Application: Heavy thrust applications, crane hook swivels, heavy vertical machine tool spindles
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The 51300 Series single-direction heavy thrust ball bearings are engineered for demanding pure axial load conditions with maximum ball complement in the heavy series cross-section. These bearings withstand substantial static and dynamic thrust forces. Essential for heavy thrust applications including crane hook swivels, vertical machine tool spindles, and heavy positioning mechanisms.
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) |
|---|---|---|---|---|---|---|---|
| 51304 | 20 | 47 | 18 | 28.2 | 49.0 | 4500 | 0.16 |
| 51305 | 25 | 52 | 18 | 30.0 | 56.0 | 3800 | 0.18 |
| 51306 | 30 | 60 | 21 | 38.5 | 73.5 | 3200 | 0.29 |
| 51307 | 35 | 68 | 24 | 48.5 | 94.0 | 2800 | 0.43 |
| 51308 | 40 | 78 | 26 | 59.5 | 114 | 2400 | 0.63 |
| 51309 | 45 | 85 | 28 | 69.5 | 135 | 2200 | 0.82 |
| 51310 | 50 | 95 | 31 | 86.0 | 170 | 1900 | 1.15 |
| 51311 | 55 | 105 | 35 | 102 | 202 | 1700 | 1.55 |
| 51312 | 60 | 110 | 35 | 105 | 215 | 1600 | 1.65 |
| 51313 | 65 | 115 | 36 | 108 | 230 | 1500 | 1.8 |
| 51314 | 70 | 125 | 40 | 132 | 280 | 1400 | 2.4 |
| 51315 | 75 | 135 | 44 | 155 | 330 | 1300 | 3.1 |
| 51316 | 80 | 140 | 44 | 160 | 345 | 1200 | 3.3 |
| 51317 | 85 | 150 | 49 | 180 | 390 | 1100 | 4.1 |
| 51318 | 90 | 155 | 50 | 185 | 410 | 1000 | 4.4 |
| 51320 | 100 | 170 | 55 | 215 | 490 | 950 | 5.9 |
