Powered by Made-in-China.com
Heavy-Duty Tension Sleeve for Reducers - Reliable Performance
US$30.90
100-199 Pieces
US$23.50
200-499 Pieces
US$5.60
500+ Pieces
Sample price:US$20.00/piece.Request sample
Product profile
Customization
AvailableStandard
DIN, ANSI, GB, JIS, BSW, ISOMaterial
Stainless Steel,Iron, AluminiumModel NO.
Expansion and Tensioning SleevesConnection
as Per RequirementSurface Treatment
as Per RequirementHead Type
as Per RequirementPackage
Suitalbe for Ocean and Air ShipmentOEM
AccetableODM
AcceptableFactory Tour
AcceptableSizes
Full RangeUsage
Various IndustiresSamples
AvailableAfter Sales Service
AvailableBore Diameter.
90mmMaximum Torque
100 NmOuter Race Size(mm)
47-355Thickness (mm)
26-84Weight (Kg)
0.2-19.2Transport Package
Woode BoxSpecification
100*100*100cmTrademark
OEMOrigin
ChinaProduction Capacity
1000000PCS/YearKey features
Full Customization Options: Outer diameter, surface treatment, head type, and package fully customizable per requirement.
Wide Material Selection: Available in Stainless Steel, Iron, Aluminium, 45# Steel, Alloy Steel, and Carbon Steel.
High Torque Capacity: Ensures reliable torque transmission with even pressure distribution and high precision.
Quick Installation: Secures without keyways; tightening achieved via screws for fast assembly and removal.
Durable Construction: Made from high-strength steel with optional heat treatment and corrosion-resistant coating.
OEM/ODM Services: Full OEM/ODM branding and custom packaging available for world-famous brands.
Sample Orders Accepted: Supports both sample orders and mass production for various industries.
Global Shipping Ready: Package suitable for ocean and air shipment with a full range of sizes available.
Company profile

Diligence & Fine Machinery (Qingdao) Co., Ltd.Shandong, China
Business Type: Manufacturer/FactoryNearest Port: Qingdao, Tianjin, ShanghaiAverage Response Time: ≤0.35hTerms 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
You may also like
Heavy-Duty Insert Sleeve for Wind Turbine Blade Connection
US$1.00
100 Pieces(MOQ)
Versatile Expansion Sleeve for Reducers - Perfect Fit Guaranteed
US$5.60-30.90
100 Pieces(MOQ)
Great Performance 3PE Heat Shrinkable Sleeve for Pre-Insulated Pipe Anticorrosion
Negotiable
50 Pieces(MOQ)
Premium Tensioning Sleeve for Reducers - Enhanced Durability
US$5.60-30.90
100 Pieces(MOQ)
Durable Textile Machinery Sleeve for Optimal Tension Control
US$5.60-30.90
100 Pieces(MOQ)
Reliable Polyethylene Sleeve for Directly Buried Insulated Pipes for Electro-Fusion
US$1.00-5.00
100 Pieces(MOQ)
. Premium Printing Machinery Sleeves for Enhanced Tension Control
US$5.60-30.90
100 Pieces(MOQ)
High-Performance 42CrMoA Sleeve for Wind Blade Root Applications
US$1.00
100 Pieces(MOQ)
42CrMoA Sleeve for Reliable Wind Blade Root Insert Connection
US$1.00
100 Pieces(MOQ)
High-Performance Stainless Steel Ferrule Sleeve for Heat Resistance
US$0.20
100 Pieces(MOQ)
Premium OEM Hose Sleeve with Braided Ferrule for Long-Lasting Performance
US$0.75
1 Piece(MOQ)
S505 Flemish Eye Steel Swaging Sleeve for Wire Rope Connecting
US$0.01-0.02
100 Pieces(MOQ)
H309 H310 H311 H312 High Quality Bearings Tapered Adapter Sleeve for Machine Part China
US$13.69-18.96
10 Pieces(MOQ)
Industrial Aluminum Hourglass Sleeves for Steel Cable Assembly, 3/32 Inch Size
US$0.35-0.50
100 Pieces(MOQ)
Custom CNC Machining Aluminum Spacer Sleeve for Electronic Devices
US$0.001-1.00
1 Piece(MOQ)
Fuel Injector Sleeve 3680873 (for Diesel Engine ISX/X15 series)
US$5.00
500 Pieces(MOQ)
Lubrication Hose Male Connector Fittings Threaded Sleeves for Centralized Lubrication System
US$1.10-2.10
1,000 Pieces(MOQ)
Lubricating Hose Joint Threaded Sleeve for Centralized Lubrication System
US$1.10-2.10
4,999 Pieces(MOQ)
Precision CNC Turning Bronze Bearing Sleeve for Industrial Equipment
US$0.001-1.00
1 Piece(MOQ)
Bearing Adapter Sleeve H310 with Lock Nut for 45mm Shaft H310
US$13.69-18.96
10 Pieces(MOQ)



















