Taper Bushings & Mounting Hubs
Shaft connection components — precision-ground taper lock, QD and weld-on hubs for concentric, easily removable shaft-hub connections.
Built to your drawing, to your standard
Taper bushing systems create a secure, concentric and easily removable connection between a rotating component and its shaft — using a self-releasing wedge action that grips with uniform radial pressure.
MACHINING Force taper bushings are precision-ground on both internal and external taper surfaces to ensure the interference fit that makes this connection reliable across millions of operating cycles. Manufactured from C45 with phosphate-and-oil finish; stainless 304/316 available for corrosive environments.
- Taper Lock 1008 – 5050, QD JA – S, Double Split
- 9 mm – 125 mm bore range
- 1:8 taper ratio (taper lock); proprietary QD taper
- Grade 12.9 socket head cap screws standard
- C45, 40Cr, 304/316 stainless steel
- Imperial ANSI B17.1 or metric DIN 6885 keyway
Why engineers specify Force Machining
Taper Lock 1008
5050, QD JA : S, Double Split
9 mm
125 mm bore range
1
8 taper ratio (taper lock); proprietary QD taper
Grade 12.9 socket head
Engineered and verified in-house so field performance matches drawing intent.
C45, 40Cr, 304/316 stainless
Engineered and verified in-house so field performance matches drawing intent.
Imperial ANSI B17.1 or
Engineered and verified in-house so field performance matches drawing intent.
Typical technical envelope
Full material grades, dimensional envelope, load capacity and finish options are listed on the dedicated specifications page.
Where these parts perform
- V-belt pulley & sheave mounting
- Roller chain sprocket mounting
- Timing pulley & synchronous drives
- Coupling hub shaft connections
- Conveyor drum end-disc connections
- Fan & blower impeller mounting
- Mixer & agitator shaft-hub joints
- Marine propulsion (stainless steel)
Headline performance figures
Certified metallurgy at every heat
Every bar and blank arrives with a mill certificate. We match material grade to service duty — from general-purpose carbon steel to corrosion-resistant stainless and high-fatigue alloys.
C45 carbon steel (standard)
Sourced from certified mills with EN 10204 3.1 material certificates on request.
40Cr alloy steel
Sourced from certified mills with EN 10204 3.1 material certificates on request.
304/316 stainless steel
Sourced from certified mills with EN 10204 3.1 material certificates on request.
From drawing to inspected part
Engineering & DFM Review
Our application engineers review your 2D drawing or 3D STEP model, run a design-for-manufacture study, and recommend material grade, heat treatment and surface finish to meet the specified duty cycle at the lowest landed cost.
Precision Manufacturing
CNC turning, 3–5 axis milling, cylindrical and internal grinding, gear hobbing, induction and case hardening — all performed in-house on calibrated equipment under IATF 16949-aligned process control.
Quality Verification
Statistical process control on critical dimensions, first-article (FAI/PPAP) approval, CMM traceable measurement, Rockwell/Brinell hardness mapping and Ra surface-roughness verification per ISO 9001:2015.
Preservation & Dispatch
VCI oil, desiccant sachet and heat-sealed PE for corrosion protection; ISPM-15 fumigation-free plywood cases; barcode labelling and pre-cleared export documentation for door-to-door delivery.
Trusted across demanding sectors
Our parts run inside gearboxes, drivelines and finished machinery for OEMs in a dozen industries — supported by full traceability and consistent global delivery.
Six layers of verification
Every batch passes chemistry, dimension, hardness, balance, finish and NDT gates before it leaves the plant.
Material Certification (EN 10204 3.1)
Every heat is verified by optical emission spectrometry against the ordered grade. Certified mill test reports (MTC) accompany each shipment and are archived for ten years for full lot-to-lot traceability.
Dimensional Inspection (CMM & FAI)
Zeiss and Mitutoyo coordinate measuring machines verify GD&T callouts to ISO 1101. First-article inspection (FAI) and PPAP Level 3 packages are issued for automotive and safety-critical parts on request.
Hardness & Metallurgical Analysis
Rockwell (HRC), Brinell (HB) and micro-Vickers hardness maps confirm case depth and core properties. Metallographic sections are examined at 100–500× for grain size, phase distribution and inclusion rating.
Dynamic Balancing (ISO 1940)
Rotating components — pulleys, sheaves and gears above 1,800 RPM — are dynamic-balanced to G6.3 as standard, with G2.5 available for high-speed drives. Residual unbalance is reported in g·mm per plane.
Surface Finish & Coating Verification
Contact and non-contact Ra/Rz measurement, coating thickness by magnetic and eddy-current gauge, adhesion by cross-cut, and 500–1,000 h salt-spray corrosion testing per ASTM B117 on plated and painted parts.
Non-Destructive Testing (NDT)
Magnetic particle (MPI), liquid dye penetrant (LPI) and ultrasonic (UT) inspection by ASNT Level II operators. Radiographic (RT) inspection subcontracted to accredited third-party labs when required.
Export-grade packaging
- VCI film wrap and rust-inhibitor oil protect machined surfaces for up to 12 months of storage or transit
- Individual foam, corrugated dividers or moulded PE cradles isolate parts from impact and abrasion
- Fumigation-free plywood cases certified to ISPM-15 accepted at every major port worldwide
- Barcode labels, part-number marking and customer-branded packaging (private label) available on request
- Loose, bulk, palletised or kitted assemblies — packed to your inbound receiving specification
Global shipping desk
- Incoterms 2020: FOB Shanghai / Ningbo / Qingdao standard, with EXW, CIF, CFR, DDP and DAP on request
- Air freight, sea LCL and FCL, and China–Europe rail coordinated in-house — no forwarder hand-offs
- Full export document set — Certificate of Origin (CO / Form A / FTA), packing list, commercial invoice, B/L and material test certificate
- Delivered to 40+ countries; established freight lanes to Germany, USA, Italy, Poland, Türkiye, Brazil, Mexico and Australia
- Real-time shipment tracking and consolidated container loading for multi-SKU orders
Datasheets and inspection templates
Answers before you ask
The questions our sales engineers hear most often. Missing something? Message us — a real engineer replies within one business day.
Variants engineered for every drive
Taper Lock Bushing
Industry-standard split-taper bushing. A single split compresses uniformly around the shaft as the locking screws are tightened; jacking holes enable easy removal.
Learn moreQD (Quick Disconnect) Bushing
Flanged bushing with a steeper taper and separate mounting flange — component can be removed without disturbing the bushing on the shaft.
Learn moreWeld-On Hub with Taper Bore
Solid steel hub with internal taper bore and external bolt circle, designed to be welded into a fabricated pulley, drum or roller assembly.
Learn moreFinished Bore Hub
Pre-bored to exact shaft diameter with keyway and set screws — for retrofits or designs that don't accommodate a taper bushing.
Learn moreStainless Steel Taper Bushing
304 or 316 stainless for food processing, pharmaceutical, marine and chemical environments where carbon steel corrosion would compromise the connection.
Learn moreHeavy-Duty Hub with Large Bolt Pattern
Oversized hub for large-diameter conveyor pulleys, mine hoist drums and heavy equipment beyond standard taper bushing specs.
Learn moreExplore adjacent product families
From the engineering desk
Industrial Materials — The Selection Guide
Match cast iron, carbon steel, alloy steel, stainless and nickel alloys to mechanical, corrosion and thermal duty.
ReadCNC Machining — A Buyer's Guide
3-axis vs 4- vs 5-axis, realistic tolerance envelopes, and how to write a drawing that quotes low.
ReadIndustrial Inspection Methods
CMM, spectrometer, hardness, NDT and balancing — what each proves and when to specify it.
ReadRequest a Quote
Send drawings, target quantities and material grade. Firm pricing back within one business day.
Download Catalogue
Complete range, material grades, dimensional envelope and load ratings — the working PDF our engineers use.
Contact Sales
Prefer a call? Book a slot with a sales engineer for spec review and lead-time planning.
Get pricing and lead time
Share drawings, materials and target quantities — a real engineer replies.
Ready to work with Force Machining?
Send drawings, specs or a rough idea — our engineers get back within one business day.