| Standard No.
规格 | φd | E7 | φd | R6 | φA | L1 | L | | JDBB650-12X15 | 12 | +0.050
+0.032 | 18 | +0.034
+0.023 | 25 | 11 | 15 | | JDBB65016X20 | 16 | 22 | +0.041
+0.028 | 30 | 15 | 20 | | JDBB650-20X25 | 20 | +0.061
+0.040 | 28 | 36 | 20 | 25 | | JDBB650-25X30 | 25 | 33 | +0.050
+0.034 | 43 | 25 | 30 | | JDBB650-30X35 | 30 | +0.075
+0.050 | 38 | 48 | 30 | 35 | | | 40 | 50 | 60 | 40 | 45 | | JDBB650-50X55 | 50 | 62 | +0.060
+0.041 | 75 | 49 | 55 | | JDBB650-60X65 | 60 | +0.090
+0.060 | 75 | +0.062
+0.043 | 90 | 58 | 65 | |
