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 conveyors and bucket elevators for transporting raw
  • more
Unit of Measure

Specifications

Bore Range - Max.

7.870 in200.00 mm

Bore Range - Min.

3.940 in100.00 mm

Torque Capacity

45500 lb·ft61700 N·m

Inner Race Max. Overrunning Speed

180 rpm

Drag Torque

32.430 lb·ft44.00 N·m

A - Backstop width

5.910 in150.00 mm

B - Overall length

16.930 in430.00 mm

C - Inside width

5.590 in142.00 mm

D - Center line of backstop to flange edge

11.180 in284.00 mm

E - Counterbore inside diameter

9.880 in251.00 mm

F - Overall inner race width

5.910 in150.00 mm

G - Counterbore depth

0.160 in4.00 mm

H - Overall backstop width

7.010 in178.00 mm

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

72.010 in1829.00 mm

K - Torque arm height

7.990 in203.00 mm

L - Torque arm width

4.170 in106.00 mm

Amount of grease

0.420 lb0.190 kg

Weight - With Torque Arm - Min. Bore

578.600 lb263.000 kg

Weight - With Torque Arm - Max. Bore

517.000 lb235.000 kg

Weight - Without Torque Arm - Min. Bore

407.000 lb185.000 kg

Weight - Without Torque Arm - Max.. Bore

345.400 lb157.000 kg