Play Video ! Play Video !
  • Pulleys
    Pulleys
  • Transmission Belts
    Transmission Belts
  • Taper Bushes
    Taper Bushes
  • Couplings
    Couplings
  • Industrial Gears
    Industrial Gears
  • Sprockets & Chains
    Sprockets & Chains
  •  Custom Transmission Components
    Custom Transmission Components
Product
Home / Product Range / Taper Bushes / Taper Lock Bushes (Metric Series) / 2012 European Standard TB Taper Bush, for SPA Series Pulleys and Small-to-Medium General Machinery
  • 2012 European Standard TB Taper Bush, for SPA Series Pulleys and Small-to-Medium General Machinery
  • 2012 European Standard TB Taper Bush, for SPA Series Pulleys and Small-to-Medium General Machinery
Taper Lock Bushes (Metric Series)

2012 European Standard TB Taper Bush, for SPA Series Pulleys and Small-to-Medium General Machinery

The 2012 European-standard TB taper bush (Taper Lock Bush) is the most widely used standardized quick-mount connecting component in European-standard transmission systems. Made of HT250 gray cast iron with an 8° external taper, it achieves taper-surface expansion by tightening the bolts, making it an ideal match for SPA series European-standard narrow V-belt pulleys and a wide range of transmission parts.

Item Specification
Model 2012 (European standard TB taper bush, Taper Lock Bush)
Applicable groove profile Fits SPA series European-standard narrow V-belt pulleys
Material HT250 gray cast iron
Taper angle 8° external taper
Standard bore range 18mm ~ 50mm (multiple standard bores available)
Non-standard bores Custom small bores from 10mm~42mm can be supplied
Bore keyway Machined to ISO standard
Surface treatment Black phosphating for rust protection
Matching bolts Hex socket head cap screws (supplied with the bush)
Standards European-standard TB taper bush standard, serialized dimensions
Versatility Standard series sizes with strong interchangeability
Installation method Bolt locking, taper-surface expansion connection
Packaging Bulk or carton packing; custom labels supported
Key Product Advantages Key Selling Points Applications and Scenarios Contact Us

1. 8° taper self-locking, very high centering accuracy: Pressing the 8° external taper against the hub's internal taper creates an interference fit that completely eliminates the backlash of straight-bore keyway fits. Shaft-to-pulley concentricity is greatly improved, giving smooth high-speed running with low vibration and effectively extending bearing life.
2. No shrink-fitting or boring, extremely fast installation and removal: Hex socket bolt locking and jacking holes mean no heating is needed for installation and no puller or hammering is needed for removal. A single wrench does the job, greatly shortening equipment downtime for maintenance.
3. Replace the bush, not the pulley, greatly reducing maintenance cost: When long-term operation wears the bore or keyway, simply replace the low-cost bush of the same 2012 size to restore the original fit accuracy, with no need to scrap the whole pulley.
4. High-strength cast iron, rust-proof and durable: Made of HT250 high-strength gray cast iron with good impact resistance and vibration damping. The black-phosphated surface offers excellent rust and corrosion protection, suited to harsh industrial environments such as humidity and dust.

An "inventory killer" with "one pulley, many bores": Customers only need to stock a few pulley bodies and, by pairing them with 2012 bushes of different bores (18mm~50mm), can fit many motor shaft diameters, greatly reducing spare-parts variety and tied-up capital.
Both standard and custom capability: It covers the full range of standard metric bores from 18mm~50mm, and also has the flexible production capability to supply custom non-standard small bores from 10mm~42mm, meeting the modification needs of special equipment.
Global universal, barrier-free replacement: Strictly follows the European-standard TB taper bush serialized dimensions, with keyways machined to ISO standard. A perfect substitute for the 2012 bushes of major overseas brands, with excellent interchangeability.

 Matching European-standard pulleys: Dedicated for use with SPA series European-standard taper-bush pulleys.
Fluid machinery: Drive connections for fans, centrifugal pumps, air compressors, and cooling towers.
General industry: Conveyors, woodworking machinery, textile machinery, agricultural machinery, and chemical agitating equipment.

Keep In Touch With Us
  • Required fields are marked *.
    We will send you quotes and recent promotions. We value your privacy and will not share your information.

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

Certificate Of Honor
Provide You With The Latest News