Do you support wholesale or bulk purchases?

Yes, we support bulk orders and offer discounts and custom production solutions for large customers.

What materials are available for the fan hub?

We offer Carbon Steel, Alloy Steel, Stainless Steel (304/316), Aluminum Alloy, and Ductile Iron.

What is the lead time for production?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

Heat Treatment High-Precision Machining Precise Positioning Easy Installation Bolt-on Fan Hub

Name: Heat Treatment High-Precision Machining Precise Positioning Easy Installation Bolt-on Fan Hub
Brand: Diligence & Fine Machinery (Qingdao) Co., Ltd.
SKU: 2256881355

Shandong, ChinaDiligence & Fine Machinery (Qingdao) Co., Ltd.

US$7.00

500 Pieces

Sample price:US$7.00/piece.Request sample

Product profile

Customization

Available

Standard

DIN, GB, ISO

Material

Carbon Steel,Alloy Steel,Aluminum Alloy

Connection

Shaft Discs & Flanges

Surface Treatment

Polished or Sandblasted

Color

Black or White

Shaft Diameter

10mm to 500mm, Customizable

Outer Diameter

Customized According to Hub or Gear

Bore & Keyway

Standard or Custom

Flange Thickness

Customized Based on Load and Application

Mounting Holes

According to DIN / ISO / GB Standards

Transport Package

Bagging/Boxing

Specification

SM30-1, BF- 20

Trademark

D&F

Origin

China

Key features

High-Precision Machining: Ensures shaft-to-hub concentricity and minimizes radial runout for stable torque transmission.

Customizable Dimensions: Shaft diameter 10-500mm, outer diameter, bore, keyway, and flange thickness are fully customizable.

Durable Material Options: Available in Carbon Steel, Alloy Steel, Stainless Steel, Aluminum Alloy, and Ductile Iron.

Wear & Corrosion Resistant: Optional heat treatment and surface coatings like polishing, sandblasting, or anodizing.

Easy Installation: Features keyways, tapped holes, and bolts for secure attachment and precise positioning.

OEM/ODM Support: Supports sample orders, mass production, and custom branding/packaging solutions.

Wide Application Range: Suitable for gears, pulleys, pumps, compressors, fans, and various industrial drive systems.

Strict Quality Control: High-precision machining and strict QC ensure superior product quality and reliability.

Company profile

Diligence & Fine Machinery (Qingdao) Co., Ltd.Shandong, China

Business Type: Manufacturer/FactoryNearest Port: Qingdao, Tianjin, ShanghaiAverage Response Time: ≤0.36hTerms of Payment: Small-amount payment, Western Union, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, CIP

AI-Powered supplier vetting

SummaryDiligence & Fine Machinery (Qingdao) Co., Ltd. is identified as a China-based limited trading company established in 2025, focused on transmission components and broader industrial machinery. The supplier reports more than 10 production lines, 6–10 quality-control staff, annual capacity of up to 5 million pieces, and export sales representing 71%–90% of total sales. Its stated product range includes gears, pulleys, belts, couplings, shafts, flanges, locking devices, and non-standard parts. The supplier claims design capability through experienced engineers, advanced equipment, and the ability to provide non-standard products, but the evidence does not establish certifications, documented customer cases, or proven after-sales performance. The records also contain capacity inconsistencies and state zero total staff experience, limiting confidence in the scale and maturity assessment.

Supplier typeThe supplier is explicitly classified as a Trading Company and a limited company based in Qingdao, China. Its business description further states that it integrates manufacturing and sales of transmission components, with products mainly for export.

R&D capabilityThe supplier claims that transmission parts are developed and designed by capable and experienced engineers and that advanced equipment has been invested in. It also lists high-precision products and various non-standard parts, providing some evidence of design and engineering capability, but no patents, R&D data, or verified innovation results are stated.

Production capacityThe supplier reports more than 10 production lines, 6–10 quality-control staff, annual capacity of up to 5 million pieces, and stated outputs for shafts, couplings, belts, pulleys, and gears; export sales are reported at 71%–90%. However, the 112.2 m² plant area, zero reported total staff experience, and inconsistencies in the capacity entries reduce confidence in the completeness and reliability of the production profile.

Customization capabilityThe product description explicitly includes various non-standard parts and castings, while the supplier states that its engineers develop and design a full range of transmission parts. This directly supports the ability to handle at least some customized or non-standard component requirements.