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SPA Spb Spc Spz Series Cast Iron V Belt Pulley for Taper Bushes
US$36.60
100-199 Pieces
US$35.30
200-499 Pieces
US$22.90
500+ Pieces
Sample price:US$30.00/piece.Request sample
Product profile
Customization
AvailableCertification
CE, ISO, Industrial StandardPulley Sizes
Type a,Type B, Type C.....Model NO.
V Belt PulleyManufacturing Process
Casting or ForgingMaterial
Carbon Steel, Alloy, Iron,Stainless SteelSurface Treatment
Baking Paint, Oxygenation,Electroplating...Application
Chemical Industry, Grain Transport, Mining Transport, Power PlantTrade Teram
Fob,C&F, CIFPayment Term
T/T or Other Acceptable TermsPacking
Suitable for Ocean and Air ShipmentODM
AcceptableOEM
AcceptableSample
AvailableMOQ
as Per The Order SizeDelivery Time
as Per The Order QtyFactory Tour
AcceptableAfter Sales Service
AvailableBore Diameter
20mmNumber of Grooves
2Outside Diameter
100mmPitch Diameter
150mmWidth
20mmTransport Package
Wooden BoxSpecification
100*100*100cmTrademark
D&F or OEMOrigin
ChinaProduction Capacity
1000000PCS/YearKey features
Wide Material Selection: Available in Cast Iron, Carbon Steel, Stainless Steel, Aluminum, and Bronze.
Custom Design Service: OEM and ODM services accepted based on customer drawings and requirements.
High Transmission Efficiency: Provides stable power output with low noise and reduced vibration.
Durable Surface Treatment: Options include painting, phosphating, black oxide, and electrophoresis.
Versatile Application: Suitable for mining, textile, agriculture, and various industrial machinery.
Multiple Manufacturing Processes: Offers sand casting, investment casting, forging, and die casting options.
Standard & Custom Sizes: Supports European and American standards with customizable bore and groove options.
Global Quality Assurance: CE and ISO certified with strict dimensional accuracy and durability control.
Company profile

Diligence & Fine Machinery (Qingdao) Co., Ltd.Shandong, China
Business Type: Manufacturer/FactoryNearest Port: Qingdao, Tianjin, ShanghaiAverage Response Time: ≤0.34hTerms 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.
Product Q&A
Q:Are you a factory?
A:
Yes, we are factory. We have world leading manufacturing facilities which can meet different levels of product.
Q:What's your MOQ?
A:
MOQ. 1. Customized products: Depend on different products.
Q:How long is your warranty?
A:
Guarantee for 12 months from the date of shipment.
Q:Could you be the OEM for the customer?
A:
No problem, we have quite rich experience for world famous brands for dozens of years.
Q:What's your delivery time?
A:
Small standard products are always in stock. Big-sized products deliver in 15-20 days. Customized product delivery depends on different products.
Send Inquiry
*To:
Diligence & Fine Machinery (Qingdao) Co., Ltd.
Diligence & Fine Machinery (Qingdao) Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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