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Estimating the shaft length

Maximum Manufacturing Length of the Screw Shaft

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Table 15 shows the maximum manufacturing lengths of precision ball screws by accuracy grade, Table 16 shows the maximum manufacturing lengths of precision ball screws compliant with ISO standards by accuracy grade, and Table 17 shows the maximum manufacturing lengths of rolled ball screws by accuracy grade.
If the shaft dimensions exceed the maximum manufacturing lengths in Table 15, Table 16, or Table 17, contact THK.

Table15 Maximum Manufacturing Length of Precision Ball Screws by Accuracy Grade
Unit: mm
Note: For ball screw models HBN-V, HBN-K (KA), HBN, and SBKH, the standard maximum length of the screw shaft is 3000 mm.
For lengths greater than this, please contact THK.
Screw shaft
outer diameter		 Overall screw shaft length
C0 C1 C2 C3 C5 C7
4 90 110 120 120 120 120
6 150 170 210 210 210 210
8 230 270 340 340 340 340
10 350 400 500 500 500 500
12 440 500 630 680 680 680
13 440 500 630 680 680 680
14 530 620 770 870 890 890
15 570 670 830 950 980 1100
16 620 730 900 1050 1100 1400
18 720 840 1050 1220 1350 1600
20 820 950 1200 1400 1600 1800
25 1100 1400 1600 1800 2000 2400
28 1300 1600 1900 2100 2350 2700
30 1450 1700 2050 2300 2570 2950
32 1600 1800 2200 2500 2800 3200
36 2000 2100 2550 2950 3250 3650
40 2000 2400 2900 3400 3700 4300
45 2000 2750 3350 3950 4350 5050
50 2000 3100 3800 4500 5000 5800
55 2000 3450 4150 5300 6050 6500
63 2000 4000 5200 5800 6700 7700
70 2000 4000 6300 6450 7650 9000
80 2000 4000 6300 7900 9000 11000
100 2000 4000 6300 11000 11000 11000
Table16 Maximum Manufacturing Length of Rolled Ball Screws
by Accuracy Grade
Unit: mm
Note: For details, refer to Maximum Manufacturing Length of the Screw Shaft .
Screw shaft
outer diameter		 Overall screw shaft length
C7 C8 C10
6 to 8 320 320 -
10 to 12 500 1000 -
14 to 15 1500 1500 1500
16 to 18 1500 1800 1800
20 2000 2200 2200
25 2000 3000 3000
28 3000 3000 3000
30 3000 3000 4000
32 to 36 3000 4000 4000
40 3000 5000 5000
45 3000 5500 5500
50 3000 6000 6000

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