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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.

9.840 in250.00 mm

Bore Range - Min.

6.880 in175.00 mm

Torque Capacity

108000 lb·ft147000 N·m

Inner Race Max. Overrunning Speed

135 rpm

Drag Torque

68.540 lb·ft93.00 N·m

A - Backstop width

9.720 in247.00 mm

B - Overall length

23.620 in600.00 mm

C - Inside width

9.020 in229.00 mm

D - Center line of backstop to flange edge

15.160 in385.00 mm

E - Counterbore inside diameter

11.810 in300.00 mm

F - Overall inner race width

10.710 in272.00 mm

G - Counterbore depth

0.850 in21.50 mm

H - Overall backstop width

11.140 in283.00 mm

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

82.010 in2083.00 mm

K - Torque arm height

12.010 in305.00 mm

L - Torque arm width

5.000 in127.00 mm

Amount of grease

3.080 lb1.400 kg

Weight - With Torque Arm - Min. Bore

1522.400 lb692.000 kg

Weight - With Torque Arm - Max. Bore

1397.000 lb635.000 kg

Weight - Without Torque Arm - Min. Bore

1223.200 lb556.000 kg

Weight - Without Torque Arm - Max.. Bore

1097.800 lb499.000 kg