免費工程工具 #051
軸承潤滑脂用量計算器
計算滾動軸承建議的潤滑脂填充量。公式:G = 0.005 × D × B。輸入軸承外徑與寬度。
結果
潤滑脂用量公式
- D — 軸承外徑 (mm)
- B — 軸承寬度 (mm)
- G — 潤滑脂用量(公克)
填充百分比指南
| n × dm | 速度等級 | 建議填充量 |
|---|---|---|
| < 100,000 | 低速 | 50–80% |
| 100,000 – 300,000 | 中速 | 30–50% |
| 300,000 – 500,000 | 高速 | 25–35% |
| > 500,000 | 極高速 | 20–30% |
實務範例
已知: D = 80 mm, B = 18 mm
G = 0.005 × 80 × 18 = 7.2 克 (100% 填充)
40% 填充時:7.2 × 0.40 = 2.9 克
補充潤滑脂:7.2 × 0.50 = 3.6 克
⚠️ 注意: 潤滑脂過量是導致潤滑脂相關軸承故障的首要原因。如有疑慮,請減少潤滑脂用量,並依賴適當的再潤滑間隔。
Initial grease fill is calculated as G = 0.005 × D × B grams. For regreasing, use about 50% of this. Actual fill percentage depends on speed — 30-50% of free space is common for normal applications.
潤滑脂填充過多會導致過度攪動、溫度升高、功耗增加,並可能導致密封失效和潤滑脂泄漏。在高轉速下,潤滑脂填充過多比填充不足的危害更大。
Low speed (n×dm < 100,000): 50-80%. Medium speed: 30-50%. High speed (>300,000): 25-35%. Factory-sealed bearings are typically 25-35% filled.
For periodic relubrication, use approximately 50% of the full fill quantity. This delivers fresh grease to the contact areas without overfilling.
Yes. Ball bearings have more internal free space than roller bearings. The formula G = 0.005 × D × B is a good approximation for all types, but adjust fill percentage for specific bearing type and speed.
本頁所述的操作流程由 Vibromera 團隊使用 Balanset-1A(一款用於現場轉子平衡的便攜式雙通道動平衡儀及振動分析儀)開發並經過實地測試。
用於軸承狀態監測的專業振動分析儀。已應用於 50 多個國家。