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速度·温度系数 规格表
Speed & Temp Factor KS Specifications — 15个尺寸
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 | 轴 | 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 | 销 | fn=(33.3/n)^(1/3) | |
| n = 10000 rpm | 0.150 | fn | 超 销 | fn=(33.3/n)^(1/3) | |
| T ≤ 150°C | - | 1.00 | ft | 标准热处理 轴承 | HT |
| T = 175°C | - | 0.95 | ft | S1 热处理 | S1 |
| T = 200°C | - | 0.90 | ft | S1 轴承 | 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.
按转速n(rpm)和使用温度的寿命修正系数表。速度系数fn = (33.3/n)^(1/3)(球轴承)——高速fn减小, 相同载荷和轴承下许用时间急剧缩短。温度系数ft在150°C以下标准热处理为1.0, 200°C时0.9, 250°C以上需S1/S2稳定化处理的特殊轴承。实际应用时fn·ft乘以Cr得有效动额定载荷(Cr_eff = ft·Cr)。