ATRA-FLEX Catalog 2025

T-SERIES

BUSHING OPTIONS

QD BUSHING

GB

SIZE QD MB GB G D1

D3 D4 E BL

G

T0 T1 T2 T3 T4 T5 T6 T7 T8 T9

2.470 3.200 3.625 5.000 5.625 7.500 8.875 10.750 11.375 13.875

2.950

1.250 1.625 2.000 2.9375 4.000 4.500 5.500 6.000 7.000 2.625

1.000 1.312 1.812 1.937 2.062 3.750 4.625 6.750 8.125 9.375

.100 .100 .100 .100 .180 .180 .180 .200 .200 .200

2.050 2.820 3.500 4.500 5.650 7.350 8.515 10.065 10.435 13.780

1.550 2.725 2.725 4.165 3.830 5.805 7.180 11.200 13.450 15.825

2.410 4.715 3.950 7.125 6.180 8.560

JA SH SD SK SF

4.800 6.290 7.800 9.765 11.900 13.600 14.625 18.020 3.960

F J M N P

D4

D3 D1

MB

10.200 14.520 19.450 20.589

FIGURE 12 QD BUSHING

Note: Ring hubs may accommodate +1 size larger bushing than flex hub.

TAPER LOCK BUSHING EXTERNAL

G

SIZE TL-EXT MB G D1

D3 D4 E

BL

T0 T1 T2 T3 T4 T5 T6 T7 T8 T9

1008 1108 1615 2012 2525 3020 4040 5050 7060 5050

.875 .875

.100 .100 .100 .100 .180 .180 .180 .200 .200 .200

2.050 2.820 3.500 4.500 5.650 7.350 8.515 10.065 10.435 13.780

3.960 2.950 4.800 6.290 7.800 9.765 11.900 13.600 14.625 18.020

2.350 2.260 3.350 2.850 5.180 5.530 8.430 14.215 10.700 16.825

1.000 1.125 1.625 2.000 2.500 3.000 4.000 5.000 5.000 7.000

2.470 3.200 3.625 5.000 5.625 7.500 8.875 10.750 11.375 13.875

1.500 1.250 2.500 2.000 4.000 5.000 5.000 6.000

D4 MB

D3 D1

FIGURE 13 TAPER LOCK EXTERNAL BUSHING

Note: Ring hubs may accommodate +1 size larger bushing than flex hub.

G

TAPER LOCK BUSHING INTERNAL

SIZE TL-INT MB G D1

D3 D4 E

BL

T1 T2 T3 T4 T5 T6 T7 T8 T9

.875 1.000 1.000 1.250 2.500 3.500 4.000 4.500 5.000

.100 .100 .100 .180 .180 .180 .200 .200 .200

3.200 3.625 5.000 5.625 7.500 8.875 10.750 11.375 13.875

2.820 3.500 4.500 5.650 7.350 8.515 10.065 10.435 13.780

4.800 3.960 6.290 7.800 9.765 11.900 13.600 14.625 18.020

2.180 2.300 3.350 3.705 5.530 7.430 9.200 9.450 10.700

1.125 1.437 1.687 2.125 2.500 3.937 4.437 4.937 5.000

1108 1310 1610 2012 2525 3535 4040 4545 5050

MB

D4

D3 D1

FIGURE 14 TAPER LOCK INTERNAL BUSHING

Note: Ring hubs may accommodate +1 size larger bushing than flex hub.

Note: Coupling torque may be de-rated due to the bushing’s maximum torque capacity. Consult the bushing manufacturer for specifications.

14

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