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High-Deflection Spring-Loaded Coupling for Small Vacuum Pumps

Name: High-Deflection Spring-Loaded Coupling for Small Vacuum Pumps
Brand: Diligence & Fine Machinery (Qingdao) Co., Ltd.
SKU: 2159263422

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

US$25.00

200 Pieces

Sample price:US$35.00/piece.Request sample

Product profile

Customization

Available

Standard Or Nonstandard

Standard or OEM

Shaft Hole

as Per Requirement

Torque

as Per Requirement

Bore Diameter

as Per Requirement

Speed

as Per Requirement

Structure

Flexible & Rigid

Material

Stainless Steel,Iron,Aluminium...

Type

as Per The Usage

Standard or .Nonstandard

Standard

Warranty

1 Year

Customized Support

OEM, ODM, Obm

Applicable Industries

Industrial Equipment

Adjustment Ring Material

Stainless Steel

Flexible or Rigid

Flexible

Bore Size

Aluminum Alloy

Bore Diameter/

20 mm(0.79in)

Maximum Speed

1000rpm

Rated Torque

100 N·M

Product Name

Flexible Couplings Coupler

Material.

Nylon/Steel/C45

Structure.

Jaw / Spider

Body Material

Cast Iron

Color

Black

Transport Package

Wooden Box

Specification

100*100*100cm

Trademark

D&F or OEM

Origin

China

Production Capacity

1000000PCS/Year

Key features

OEM and ODM Support: Full customization available for standard and non-standard requirements with custom drawings.

High Machining Precision: CNC turning, grinding, and dynamic balancing ensure stable power transmission.

Robust Material Options: Available in 45# steel, 40Cr, aluminum alloy, stainless steel, and alloy steel.

Excellent Misalignment Compensation: Effectively handles axial, radial, and angular offsets for smooth operation.

High Reliability: Suitable for high torque, heavy-duty, and long-duration industrial operations.

1-Year Warranty Coverage: Comprehensive 12-month guarantee from shipment date for mechanical defects.

Wide Application Range: Ideal for pumps, valves, gearboxes, machine tools, and various mechanical drives.

Flexible and Rigid Options: Offers both flexible and rigid coupling structures to suit different needs.

Company profile

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

Business Type: Manufacturer/FactoryNearest Port: Qingdao, Tianjin, ShanghaiAverage Response Time: ≤1.17hTerms 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.