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.

4.530 in115.00 mm

Bore Range - Min.

3.150 in80.00 mm

Torque Capacity

12000 lb·ft16300 N·m

Inner Race Max. Overrunning Speed

300 rpm

Drag Torque

11.050 lb·ft15.00 N·m

A - Backstop width

5.000 in127.00 mm

B - Overall length

10.630 in270.00 mm

C - Inside width

5.000 in127.00 mm

D - Center line of backstop to flange edge

7.130 in181.00 mm

E - Counterbore inside diameter

5.590 in142.00 mm

F - Overall inner race width

5.310 in135.00 mm

G - Counterbore depth

0.160 in4.00 mm

H - Overall backstop width

5.870 in149.00 mm

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

50.000 in1270.00 mm

K - Torque arm height

4.020 in102.00 mm

L - Torque arm width

2.800 in71.00 mm

Amount of grease

0.230 lb0.105 kg

Weight - With Torque Arm - Min. Bore

180.400 lb82.000 kg

Weight - With Torque Arm - Max. Bore

167.200 lb76.000 kg

Weight - Without Torque Arm - Min. Bore

129.800 lb59.000 kg

Weight - Without Torque Arm - Max.. Bore

116.600 lb53.000 kg