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Home / Product Range / Taper Bushes / Taper Lock Bushes (Metric Series) / 3535 Large-Bore Heavy-Duty European Standard TB Taper Bush, for Main-Shaft Connections in Mining and Cement Heavy Industry
  • 3535 Large-Bore Heavy-Duty European Standard TB Taper Bush, for Main-Shaft Connections in Mining and Cement Heavy Industry
  • 3535 Large-Bore Heavy-Duty European Standard TB Taper Bush, for Main-Shaft Connections in Mining and Cement Heavy Industry
Taper Lock Bushes (Metric Series)

3535 Large-Bore Heavy-Duty European Standard TB Taper Bush, for Main-Shaft Connections in Mining and Cement Heavy Industry

The 3535 large-bore European-standard TB taper bush is designed for heavy machinery and high-power transmission systems. Its large flange combined with the 8° external taper provides extraordinary radial clamping force, making it an indispensable rigid connection hub between large pulleys, heavy-duty sprockets, and thick drive shafts.

Item Specification
Model 3535 (European standard TB taper bush, Taper Lock Bush)
Applicable groove profile Fits SPB and SPC series high-power European-standard taper-bush pulleys and large sprockets
Material HT250 gray cast iron / 45# steel (optional for heavy loads)
Taper angle 8° external taper
Standard bore range 25mm ~ 90mm (multiple large shaft sizes available)
Bore keyway Machined to ISO standard (including heavy-duty wide keyways)
Surface treatment Black phosphating for rust protection
Matching bolts M12 hex socket head cap screws (large-size fasteners)
Standards European-standard TB taper bush standard, serialized dimensions
Installation method Bolt locking, taper-surface expansion connection, with auxiliary jacking holes
Packaging Carton or export wooden crate packing; custom labels supported

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Key Product Advantages Key Selling Points Applications and Scenarios Contact Us

1. Extra-large bore and torque capacity: Supports a very wide shaft range from 25mm to 90mm, locked with M12 high-strength bolts. When transmitting high torque, the huge interference force generated by the taper prevents shaft slippage under heavy loads, far beyond what small-size bushes can do.
2. Excellent shock resistance, unfazed by heavy-load vibration: For equipment with severe shock loads such as mining crushers and cement tube mills, the thick cast iron wall and wide keyway design of the 3535 bush effectively resist the shear stress from sudden torque changes and prevent fretting wear between shaft and hub.
3. A cost-saving "secret weapon" for large equipment: Large non-standard pulleys and sprockets are expensive to make. When wear or fit failure occurs, simply remove and replace the 3535 bush to give a multi-ton wheel body a new lease on life, saving end customers huge downtime and parts-replacement costs.
4. Heavy-duty rust protection for harsh environments: The body is made of HT250 gray cast iron (high-strength steel optional) with a deep black-phosphated surface, offering excellent rust and oil-stain resistance to cope with dusty, humid heavy-industry sites.

The "anchor" of high-power transmission: Built for large shaft diameters and high torque, solving the fatal flaw of conventional key connections that loosen easily and roll the key.
Safe and efficient installation and removal: Using the M12 jacking holes on the flange, the bush can be pushed out safely and steadily without large hydraulic pullers or high-temperature heating, greatly improving maintenance efficiency on heavy equipment.
Globally interchangeable standard: Strictly follows international European-standard dimensions and can directly replace comparable 3535 bushes on large imported equipment overseas.

Mining and metallurgy: Flywheel connections of large jaw crushers, heavy-duty vibrating screens, and metallurgical rolling mill drives.
Building materials and cement: Main-shaft connections of large kiln tail fans, tube mills, and large bucket elevators.
Heavy fans and pumps: Industrial induced-draft fans, high-power slurry pumps, and large cooling tower drives.
Ports and shipping: Large lifting machinery, belt conveyor drive stations, and ship deck machinery.

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About Rentai
Transmission Equipment

Shanghai Rentai Transmission Equipment Co., Ltd. is a manufacturer specializing in R&D, production and export of mechanical transmission components. Our main products include taper lock pulleys, taper lock bushes, timing pulleys, V-belts and timing belts. We also provide OEM & ODM custom service for non-standard transmission parts. Our factory covers over 8000 square meters, with more than 100 employees including 22 technical staff. We integrate casting, machining and finishing, equipped with CNC machines and testing instruments, with an annual casting output of 2000 tons. Supported by complete quality management system and international standards, our products are exported to Southeast Asia, Middle East, Europe and America, delivering reliable transmission solutions for global industrial clients.

  • 10+

    Industry Experience

  • 100+

    Production staff

  • 2000+Ton

    Annual Production

  • 8000+㎡

    Factory Area

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