深沟球轴承的外形尺寸公差和旋转精度公差按国标GB/T307.1-94分为P0、P6、P5、P4、P2五个精度等级。它们等同于国际标准ISO492、德国标准DIN620、日本工业标准JISB1514以及美国国家标准ANSI/AFBMA STD20的相应精度等级。 这种精度等级和ISO等标准的对照如表所示。 标准 | 公差标准 | GB/T307.1-94 | 0 | 6 | 5 | 4 | 2 | JISB1514 | Class0 | Class6 | Class5 | Class4 | Class2 | ISO492 | Normal Class | Class6 | Class5 | Class4 | Class2 | DIN620 | P0 | P6 | P5 | P4 | P2 | AISI/AFBMA STD20 | ABEC-1 | ABEC-3 | ABEC-5 | ABEC-7 | ABEC-9 | 内圈公差与公差极限
公差等级 | d mm | △dmp | △ds1) | Vdp 2) | Vdmp | Kia | Sd | Sia | △Bs | VBs | 直径系列 | GB/T307.1-94 | from | to | high | low | high | low | 9 | 0,1 | 2,3,4 | max. | max. | max. | max. | high | low | max. | max. | P0 | 2.5 | 10 | 0 | -8 | | | 10 | 8 | 6 | 6 | 10 | | | 0 | -120 | 15 | 10 | 18 | 0 | -8 | | | 10 | 8 | 6 | 6 | 10 | | | 0 | -120 | 20 | 18 | 30 | 0 | -10 | | | 13 | 10 | 8 | 8 | 13 | | | 0 | -120 | 20 | 30 | 50 | 0 | -12 | | | 15 | 12 | 9 | 9 | 15 | | | 0 | -120 | 20 | P6 | 2.5 | 10 | 0 | -7 | | | 9 | 7 | 5 | 5 | 6 | | | 0 | -120 | 15 | 10 | 18 | 0 | -7 | | | 9 | 7 | 5 | 5 | 7 | | | 0 | -120 | 20 | 18 | 30 | 0 | -8 | | | 10 | 8 | 6 | 6 | 8 | | | 0 | -120 | 20 | 30 | 50 | 0 | -10 | | | 13 | 10 | 8 | 8 | 10 | | | 0 | -120 | 20 | P5 | 2.5 | 10 | 0 | -5 | | | 5 | 4 | 4 | 3 | 4 | 7 | 7 | 0 | -40 | 5 | 10 | 18 | 0 | -5 | | | 5 | 4 | 4 | 3 | 4 | 7 | 7 | 0 | -80 | 5 | 18 | 30 | 0 | -6 | | | 6 | 5 | 5 | 3 | 4 | 8 | 8 | 0 | -120 | 5 | 30 | 50 | 0 | -8 | | | 8 | 6 | 6 | 4 | 5 | 8 | 8 | 0 | -120 | 5 | P4 | 2.5 | 10 | 0 | -4 | 0 | -4 | 4 | 3 | 3 | 2 | 2.5 | 3 | 3 | 0 | -40 | 2.5 | 10 | 18 | 0 | -4 | 0 | -4 | 4 | 3 | 3 | 2 | 2.5 | 3 | 3 | 0 | -80 | 2.5 | 18 | 30 | 0 | -5 | 0 | -5 | 5 | 4 | 4 | 2.5 | 3 | 4 | 4 | 0 | -120 | 2.5 | 30 | 50 | 0 | -6 | 0 | -6 | 6 | 5 | 5 | 3 | 4 | 4 | 4 | 0 | -120 | 3 | P2 | 2.5 | 10 | 0 | -2.5 | 0 | -2.5 | | 2.5 | 2.5 | 1.5 | 1.5 | 1.5 | 1.5 | 0 | -40 | 1.5 | 10 | 18 | 0 | -2.5 | 0 | -2.5 | | 2.5 | 2.5 | 1.5 | 1.5 | 1.5 | 1.5 | 0 | -80 | 1.5 | 18 | 30 | 0 | -2.5 | 0 | -2.5 | | 2.5 | 2.5 | 1.5 | 2.5 | 1.5 | 2.5 | 0 | -120 | 1.5 | 30 | 50 | 0 | -2.5 | 0 | -2.5 | | 2.5 | 2.5 | 1.5 | 2.5 | 1.5 | 2.5 | 0 | -120 | 1.5 | 备注: 1) 仅适用于直径系列0,1,2,3,4。 2)直径系列7,8无规定值。
外圈公差与公差极限
公差等级 | d mm | △Dmp | △Ds | Vdp 3) | VDmp | Kea | Sd | Sea | △cs | Vcs | 开式 | 闭式 | 直径系列 | B/T307.1-94 | from | to. | high | low | high | low | 9 | 0,1 | 2,3,4 | 2,3,4 | max | max | max | max | 和轴承内圈的 △Bs 一样 | max | max | P0 | 2.51) | 6 | 0 | -8 | | | 10 | 8 | 6 | 10 | 6 | 15 | | | 和轴承内圈的VBs一样 | 6 | 18 | 0 | -8 | | | 10 | 8 | 6 | 10 | 6 | 15 | | | 18 | 30 | 0 | -9 | | | 12 | 9 | 7 | 12 | 7 | 15 | | | 30 | 50 | 0 | -11 | | | 14 | 11 | 8 | 16 | 8 | 20 | | | 50 | 80 | 0 | -13 | | | 16 | 13 | 10 | 20 | 10 | 25 | | | P6 | 2.51) | 6 | 0 | -7 | | | 9 | 7 | 5 | 9 | 5 | 8 | | | 16 | 18 | 0 | -7 | | | 9 | 7 | 5 | 9 | 5 | 8 | | | 18 | 30 | 0 | -8 | | | 10 | 8 | 6 | 10 | 6 | 9 | | | 30 | 50 | 0 | -9 | | | 11 | 9 | 7 | 13 | 7 | 10 | | | 50 | 80 | 0 | -11 | | | 14 | 11 | 8 | 16 | 8 | 13 | | | P5 | 2.51) | 6 | 0 | -5 | | | 5 | 4 | 4 | | 3 | 5 | 8 | 8 | 5 | 6 | 18 | 0 | -5 | | | 5 | 4 | 4 | | 3 | 5 | 8 | 8 | 5 | 18 | 30 | 0 | -6 | | | 6 | 5 | 5 | | 3 | 6 | 8 | 8 | 5 | 30 | 50 | 0 | -7 | | | 7 | 5 | 5 | | 4 | 7 | 8 | 8 | 5 | 50 | 80 | 0 | -9 | | | 9 | 7 | 7 | | 5 | 8 | 8 | 10 | 6 | P4 | 2.51) | 6 | 0 | -4 | 0 | -4 | 4 | 3 | 3 | | 2 | 3 | 4 | 5 | 2.5 | 6 | 18 | 0 | -4 | 0 | -4 | 4 | 3 | 3 | | 2 | 3 | 4 | 5 | 2.5 | 18 | 30 | 0 | -5 | 0 | -5 | 5 | 4 | 4 | | 2.5 | 4 | 4 | 5 | 2.5 | 30 | 50 | 0 | -6 | 0 | -6 | 6 | 5 | 5 | | 3 | 5 | 4 | 5 | 2.5 | 50 | 80 | 0 | -7 | 0 | -7 | 7 | 5 | 5 | | 3.5 | 5 | 4 | 5 | 3 | P2 | 2.51) | 6 | 0 | -2.5 | 0 | -2.5 | | 2.5 | 2.5 | 2.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 6 | 18 | 0 | -2.5 | 0 | -2.5 | | 2.5 | 2.5 | 2.5 | 1.5 | 1.5 | 1.5 | 1.5 | | 1.5 | 18 | 30 | 0 | -4 | 0 | -4 | | 4 | 4 | 4 | 2 | 2.5 | 1.5 | 2.5 | | 1.5 | 30 | 50 | 0 | -4 | 0 | -4 | | 4 | 4 | 4 | 2 | 2.5 | 2.5 | 2.5 | | 1.5 | 50 | 80 | 0 | -4 | 0 | -4 | | 4 | 4 | 4 | 2 | 4 | 2.5 | 4 | | 1.5 | 备注: 1)包括2.5mm在内。 2) 0级直径系列9,0,1无规定值;P2、P6级仅直径系列9无规定值,表中数值适用于0,1,2,3,4直径系列。 3)直径系列7,8无规定值
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