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Tsubaki’s new BS-F Series backstops are designed for simple, drop-in installation to all major competitive external, low-speed backstop products. These backstops use a unique labyrinth seal design for maximum life with minimal maintenance. With Tsubaki’s innovative design features, our backstops ensure efficient and dependable operation in the harshest environments.

TYPICAL APPLICATIONS
  • Mining (Coal, Copper, Potash) - used in inclined
  • more
Unit of Measure

Specifications

Bore Range - Max.

18.310 in465.00 mm

Bore Range - Min.

13.780 in350.00 mm

Torque Capacity

722000 lb·ft980000 N·m

Inner Race Max. Overrunning Speed

80 rpm

Drag Torque

180.560 lb·ft245.00 N·m

A - Backstop width

16.140 in410.00 mm

B - Overall length

42.910 in1090.00 mm

C - Inside width

16.420 in417.00 mm

D - Center line of backstop to flange edge

27.170 in690.00 mm

E - Counterbore inside diameter

23.620 in600.00 mm

F - Overall inner race width

17.010 in432.00 mm

G - Counterbore depth

0.300 in7.50 mm

H - Overall backstop width

18.660 in474.00 mm

J - Distance from backstop center line to I-beam edge

120.000 in3048.00 mm

K - Torque arm height

24.020 in610.00 mm

L - Torque arm width

7.240 in184.00 mm

Amount of grease

9.680 lb4.400 kg

Weight - With Torque Arm - Min. Bore

8294.000 lb3770.000 kg

Weight - With Torque Arm - Max. Bore

7722.000 lb3510.000 kg

Weight - Without Torque Arm - Min. Bore

6952.000 lb3160.000 kg

Weight - Without Torque Arm - Max.. Bore

6380.000 lb2900.000 kg