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TSUBAKI
CAM CLUTCH
BS-F SERIES
BACKSTOP Cam Clutch
BACKSTOP Cam Clutch
NEW
One-way clutch

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Summary of Contents for Tsubaki Backstop BS-F Series

  • Page 1 TSUBAKI CAM CLUTCH BS-F SERIES One-way clutch BACKSTOP Cam Clutch BACKSTOP Cam Clutch...
  • Page 2 Developing new tec TSUBAKI abundant B Ideal for tough environment Special labyrinth seal mechanism for dusty environment Flexible labyrinth blocked dust and water against cement and mining tough condition. Flexible labyrinth Grease only ( Patent pending : JP ) ( Grease fitting )
  • Page 3 ACKSTOP experiences. Ingenious BACKSTOP mechanism Non-rollover cam TSUBAKI original cam design can hold higher backstop torque as well as excessive torque by flat area. N·m 1,200,000 TSUBAKI Others Flat area Flat area 800,000 400,000 Bore size Torque capacity comparison Cam &...
  • Page 4 High speed and Down sizing TSUBAKI BACKSTOP BS-F series can meet the high speed trend of inclined conveyors as well as reducing width with our new improved design. It is easy replacement from customer’s current BACKSTOP. r/min TSUBAKI TSUBAKI Others...
  • Page 5 The BACKSTOP on the secondary drive unit holds the back tension from the belt. It keeps belt traction on both conveyor systems. TSUBAKI recommends that the BACKSTOP, having the torque capacity equal to the sum of the primary and secondary motors, be installed on the primary drive unit.
  • Page 6: Load Sharing

    Selection procedures by motor stall torque BACKSTOP Size Selection Service Factor A backstop by definition are required to hold back a load from moving in a reverse direction. Care must be taken in calculating the torque requirements and should be based on maximum or worst case conditions and not average/normal loads.
  • Page 7: Selection Procedure

    Selection procedures by backstop torque INFORMATION FOR SELECTION Determine the mode of operation Selection Procedure Refer to the selection procedure corresponding to the mode of operation For Belt Conveyors Note: (Short inclined yard conveyors) = Friction coefficient of rollers Selection Procedure: = 0.03 (normally used) Calculate the power to move an empty belt and idlers: (P = Weight of moving parts of the conveyor in the unloaded...
  • Page 8: Capacities And Dimensions

    Capacities and Dimensions Section X-O-Y-Z-V Parts name Inner race Thrust bearing Torque arm Labyrinth ring Cotter pin Outer race Side plate Socket plug Cam cage Labyrinth plate Oil seal Air breather...
  • Page 9 2,540 BS425F 1,030 2,743 BS465F 1,090 3,048 Notes: Torque arm dimensions are imperial base. Please contact TSUBAKI for metric torque arm dimensions. Model name BS 300 F – 280 J Model name Bore size in mm Keyway BS : BACKSTOP...
  • Page 10: Installation And Usage

    Installation and Usage For details, see the manual supplied with the product. Recommended shaft tolerance is h7 or h8. Before installation, verify that the direction of the rotation of the inner race of the BS-F Cam Clutch (shown by the arrow on the end face of the inner race) is the same as the direction of the rotation of the conveyor.
  • Page 11: Lubrication And Maintenance

    2. The ambient operating temperature range of the grease listed above is -40°C (-40°F) and +65°C (+149°F). Please consult Tsubaki if operating outside of this range. 3. Beacon 325 is available from Tsubaki and is NOT able to be mixed with other greases. Safety Guide...
  • Page 12 The Tsubaki Eco Link logo is used only on products that satisfy the standards for environmental friendliness set by the Tsubaki Group. Note: In accordance with the policy of TSUBAKIMOTO CHAIN CO. to constantly improve its products, the specifications in this catalog are subject to change without notice.

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