Can you provide customized bores?

Yes, we offer pilot bore, taper bore, and customized bore options to suit specific application needs.

What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

What is the precision level of your machining?

We achieve dimension tolerance of the 6th degree, roughness Ra0.4, and concentricity accuracy of <=0.01mm for inner holes >=5mm and outside diameters <=800mm.

Keyless Locking Device

Name: Expansion and Clamping Sleeves/ Locking Bush/ Keyless Locking Device
Brand: Chengdu Unik Machinery Co., Ltd.
SKU: 1971565351

Sichuan, ChinaChengdu Unik Machinery Co., Ltd.

US$2.50

5 Pieces

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Standard or Nonstandard

Standard

Feature

Cold-Resistant, Corrosion-Resistant, Skid-Resistance, Wear-Resistant, High Temperature-Resistance

Model NO.

KLD-1

Application

Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery

Surface Treatment

Polishing

Material

Carbon Steel

Klgg

50 X 80

Ktr100

50 X 80

Rlk200

50 X 80

Kbs40

50 X 80

Flk200

50 X 80

Transport Package

in a Blank Carton in Seaworthy Wooden Cases

Specification

130X180 150X200 200X260 260X325 etc.

Trademark

Unik machinery

Origin

China

HS Code

8483900000

Production Capacity

50, 000 Pieces/Month

Key features

Wide Brand Interchangeability: Compatible with BIKON, BEA, BONFIX, Challenge, Chiaravalli, and other major global brands.

High Precision Machining: Dimension tolerance up to 6th degree, roughness Ra0.4, and concentricity accuracy <=0.01mm.

Durable Material Options: Available in C45, Stainless Steel 304/316, and 42CrMo for corrosion and wear resistance.

Versatile Surface Treatment: Options include Zinc coating, Black anodizing, Nickel plating, and QPQ for various environments.

Easy Installation & Maintenance: Keyless design allows adjustable, releasable connections without threads or keys for easy assembly.

High Torque Transmission: Creates strong clamping pressure between surfaces for reliable power transmission in rotating machinery.

100% Quality Inspection: Every finished product undergoes visual and functional inspection to ensure high quality standards.

Custom Bore Availability: Offers pilot bore, taper bore, and customized bore options to fit specific shaft requirements.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceExhibition ExperienceQA/QC Inspectors

Chengdu Unik Machinery Co., Ltd.

Sichuan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Minor Customization CertifiedExport Year: 11 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤2.04h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is a China-based manufacturer specializing in transmission and machining products, including keyless locking devices, timing belt pulleys, bushings, couplings, gears, and related parts. It holds ISO 9001 certification, reports two production lines, 6–10 quality-control staff, and stated annual outputs of 150,000 keyless locking devices and 300,000 timing belt pulleys. Export activity is substantial, with 90% of sales from exports and 11 years of exporting experience. Service procedures exist for supplier assessment and corrective actions, but some lack written records; the supplier has no overseas agents, warehouses, showrooms, inventory service, or valid manufacturing-capacity contract with affiliated subcontractors. R&D and 3D design capabilities are limited, with only minor customization and no new products reported in the past year. Financial credibility cannot be assessed because the supplied financial figures are incomplete and inconsistent; financial data is not reproduced here.

Supplier typeThe supplier is identified as not being a professional technical supplier and operates as a manufacturer of keyless locking devices, timing belt pulleys, couplings, gears, and other machining parts. Its facilities include CNC machining and turning equipment, supporting classification as a machining and mechanical-transmission product manufacturer.

CertificationsThe supplier reports holding ISO 9001 certification, and the quality-assurance information states that quality assurance is present. This provides explicit evidence of a formal quality-management certification.

After-Sales capabilityThe supplier has a clear customer-complaint procedure with follow-up records and accepts multiple quotation and payment terms. However, corrective and preventive actions lack written records, and the supplier has no overseas agents or branches, overseas warehouse, showroom, or in-stock service capability, limiting documented and localized after-sales support.

R&D capabilityThe supplier reports no professional technical R&D capability, no 3D software design service, and no new product in the past year. Although 6–10 years of total R&D-engineer experience is reported, the stated lack of recent product development indicates limited demonstrated innovation.

Production capacityThe supplier operates two production lines and reports annual output of 300,000 timing belt pulleys and 150,000 keyless locking devices, with 6–10 quality-control staff and documented finished-product inspection instructions. Capacity assurance is weakened because there is no in-stock service capability, no valid manufacturing-capacity contract with affiliated subcontractors, and peak-season lead-time data is unclear.

Customization capabilityThe supplier explicitly provides minor customization and has design-service capability limited to minor customization. This confirms some customization ability, but not broad or advanced engineering customization.

Product Q&A

Q:Which international brands are interchangeable with your locking devices?

Our devices are interchangeable with many European and American brands, including BIKON, BEA, BONFIX, Challenge, Chiaravalli, CONEX, Fenlock, GERWAH, KTR, KINLOK, KBS, MAV, POGGI, RFN, Ringspann, Ringblok, SIT, SATI, TOLLOK, Tsubaki, V-Blok, Walther Flender, Fenner Drive, LoveJoy, and others.

Q:What materials are available for these keyless locking devices?

We provide locking devices made from C45, Stainless Steel 304/316, and 42CrMo to meet different strength and corrosion resistance requirements.

Q:What surface treatments do you offer?

We offer Zinc coating, Black anodizing, Nickel plating, QPQ (Quench-Polish-Quench), polishing, and other treatments in accordance with European RoHS standards.

Q:What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 piece.

Q:What is the lead time for production?

The average lead time is one month during the off-season, and 1-3 months during the peak season.