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速度·溫度係數 規格表
Speed & Temp Factor KS Specifications — 15個尺寸
ISO 281
ISOSpeed & Temp Factor
15 sizes| Condition | Bearing Type | Coefficient | Coef. Name | Example Use | Formula |
|---|---|---|---|---|---|
| n = 10 rpm | 1.494 | fn | 超 | fn=(33.3/n)^(1/3) | |
| n = 50 rpm | 0.874 | fn | () | fn=(33.3/n)^(1/3) | |
| n = 100 rpm | 0.694 | fn | 軸 | fn=(33.3/n)^(1/3) | |
| n = 500 rpm | 0.406 | fn | 通用 | fn=(33.3/n)^(1/3) | |
| n = 1000 rpm | 0.322 | fn | 通用 | fn=(33.3/n)^(1/3) | |
| n = 1500 rpm | 0.282 | fn | 通用 4 | fn=(33.3/n)^(1/3) | |
| n = 3000 rpm | 0.224 | fn | 2 | fn=(33.3/n)^(1/3) | |
| n = 5000 rpm | 0.189 | fn | 銷 | fn=(33.3/n)^(1/3) | |
| n = 10000 rpm | 0.150 | fn | 超 銷 | fn=(33.3/n)^(1/3) | |
| T ≤ 150°C | - | 1.00 | ft | 標準熱處理 軸承 | HT |
| T = 175°C | - | 0.95 | ft | S1 熱處理 | S1 |
| T = 200°C | - | 0.90 | ft | S1 軸承 | S1 |
| T = 250°C | - | 0.75 | ft | S2 | S2 |
| T = 300°C | - | 0.60 | ft | S3 | S3 |
| T = 350°C | - | 0.50 | ft | () |
This specification follows ISO (International Organization for Standardization) standards. ISO ensures cross-border compatibility, making it ideal for multinational projects, export equipment design, and global parts procurement.
按轉速n(rpm)和使用溫度的壽命修正係數表。速度係數fn = (33.3/n)^(1/3)(球軸承)——高速fn減小, 相同載荷和軸承下許用時間急劇縮短。溫度係數ft在150°C以下標準熱處理為1.0, 200°C時0.9, 250°C以上需S1/S2穩定化處理的特殊軸承。實際應用時fn·ft乘以Cr得有效動額定載荷(Cr_eff = ft·Cr)。