型号 | PA-2 | PA-G5/F5 | TC-3 | TC-5 | PA-C | PA-SS | |
材质 | WC | WC/TiC | WC | WC/TiC | 陶瓷球 | 不锈钢 | |
Co | Ni/Cr等 | Co/Ni/Cr | Co/Cr等 | ZrO2-YO2 | 440C等各种牌号 | ||
密 度 (g/cm³) | 15.0 | 11.5 | 14.4 | 7.8 | 6.1 | 7.8~9.5 | |
硬 度 (HV) | 1300~1500 | ≥1680 | 1500~1700 | ≥1600 | ≥1200 | ≥58 (HRC) | |
球珠特性 | 仅使用与油性墨水,带磁性 | 特别适合中性墨水,有非常好的耐腐蚀性,无磁性 | 适合中性油性墨水,具有良好的耐腐蚀性,有磁性 | 经济型球珠,具有很好的耐腐蚀性, 有磁性 | 具有非常好的耐腐蚀性,适合耐腐蚀要求特别高的环境中,无磁性 | 经济型球珠,硬度低,仅适合油性墨水 ,有磁性 | |
耐腐蚀特性说明 | 油性 | ○ | ○○ | ○ | ○ | ○○ | ○ |
水性 | X | ○○ | ○ | ○ | ○○ | X | |
中性 | X | ○○ | ○ | ○○ | ○○ | X | |
标记: ○○ 非常好 ○ 好 X 不适用 | |||||||
表面粗糙度分类 | FSS | FSS | FSS | FSS | FSS | / | |
FS | FS | FS | FS | FS | FS | ||
R | R | R | R | R | R | ||
RR | RR | RR | RR | RR | RR | ||
RRR | RRR | RRR | RRR | / | / | ||
直径规格 | 1.6 | 1.6 | 1.6 | / | / | / | |
1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | ||
1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | ||
1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | ||
0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | ||
0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | ||
0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | ||
/ | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | ||
/ | 0.4 | 0.4 | / | / | / | ||
/ | 0.3 | 0.3 | / | / | / | ||
尺寸精度公差 | 平均直径公差 | ±0.0015mm | ±0.0015mm | ±0.0015mm | ±0.0015mm | ±0.0015mm | ±0.0015mm |
批内直径偏差 | ≤0.0005mm | ≤0.0005mm | ≤0.0005mm | ≤0.0005mm | ≤0.0005mm | ≤0.0005mm | |
圆度 | ≤0.0005mm | ≤0.0005mm | ≤0.0005mm | ≤0.0005mm | ≤0.0005mm | ≤0.0005mm |
普拉米采用瑞士制造的精密仪器测量表面粗糙度,能够测量区域平面的粗糙度值Sa,比Ra 更具有代表性。
Ra | Sa | |
FSS | ≤0.005 | ≤0.005 |
FS | (0.003, 0.010) | (0.003, 0.010) |
R | (0.010, 0.020) | (0.010, 0.020) |
RR | (0.020, 0.040) | (0.020, 0.040) |
RRR | ≥0.030 | ≥0.030 |