One-way clutch

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 (Grease fitting) Sealing performance test by cement powder (Flexible labyrinth) (Grease fitting) Special double lip oil seal and multi temperature grease for wide temperature range Ambient temperature range -40°C to +65°C(-40°F to +149°F) Drop in design The narrowest width with I-beam structure makes easy installation for customer’s current layout 1 2 No need to...

hnologies based on 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 Flat area Torque capacity TSUBAKI Others Torque capacity comparison Cam & roller cage for longer life at overrunning Cam and roller cage orbit at low speed to convey grease from bottom to top continuously. 1 Ideal lubricant condition Wear on the cams is diminished 47.8ºC Roller Ramp Clutch Temperature comparison at the same overrunning speed easy connection

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 Others Width of inner race Over runing speed Over runing speed comparison TSUBAKI Others Width of inner race comparison Variety of options to satisfy customer demands For details, please contact TSUBAKI. Safety cover Prevent physical injury at operation as well as dust and water from outside Easy maintenance Oil level and condition monitoring Clutch Mounting Accessories...

Mounting arrangement BACKSTOP Mounting Arrangements Preventing reverse rotation of inclined or vertical conveyor systems is one of the most common applications for BACKSTOPS. There are many configurations of conveyors systems that employ BACKSTOPS. This paper presents the most common types and provides examples and calculations needed to properly size BACKSTOP in order to maximize performance and improve safety of the conveying system. *Suggested arrangement may not meet local design standards, please check local design standards. Single and Dual Drives BACKSTOPS for low speed overrunning type...

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. Because any failure of BACKSTOP might result in costly damage or injury, care must be exercised to consider all the possible loads and select appropriate service factors. The BACKSTOP needs to be sized for the breakdown or stalled torque of the drive motors. The following table shows typical service factors to be applied when size selecting BACKSTOPS....

Selection procedures by backstop torque INFORMATION FOR SELECTION 1 Selection Procedure Determine the mode of operation Refer to the selection procedure corresponding to the mode of operation For Belt Conveyors (Short inclined yard conveyors) Selection Procedure: 1. Calculate the power to move an empty belt and idlers: (P1) P1 = 0.06 × f × W × V × ℓ + ℓ0 (kW) 367 2. Calculate the power to move a loaded belt horizontally: (P2) P2 = f × Qt × ℓ + ℓ0 (kW) 367 3. Calculate the power to move the load vertically: (P3) P3 = h × Qt (kW) 367 4. Calculate the back stop power: (Pr) Pr = P3 – 0.7(P1 + P2)...

Section X-O-Y-Z-V Thrust bearing Labyrinth ring Outer race Side plate Socket plug Inner race Labyrinth plate

Notes:Torque arm dimensions are imperial base. Please contact TSUBAKI for metric torque arm dimensions. Model name Bore size in mm Keyway

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. Securely install the torque arm to the BS-F Cam Clutch using furnished torque arm pins and cotter pins. Apply pressure only on the end face of the inner race when inserting the BS-F Cam Clutch on to the shaft. Do not hit the inner race directly with a hammer or apply pressure on the...

Lubrication and Maintenance| Maintenance Instructions Series Notes: 1. Do not use grease that contains EP additives. 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 This mark indicates a situation where incorrect handling may cause hazardous conditions, resulting in medium or slight personal injury or property damage. • Ensure that the end user of the device receives the appropriate instruction...

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