Does the belt require high tension?

No, it requires low tension, which reduces load on shafts and bearings.

What is the transmission efficiency?

The transmission efficiency is between 98% and 99%.

OEM Double Side Timing Belt Rubber Timing Belts 138mxl Synchronous Belt

Name: OEM Double Side Timing Belt Rubber Timing Belts 138mxl Synchronous Belt
Brand: Junchi (Guangzhou) Transmission Parts Co., Ltd
SKU: 1991649661

Guangdong, ChinaJunchi (Guangzhou) Transmission Parts Co., Ltd

US$18.00

12-19 Pieces

US$14.80

20-99 Pieces

US$13.50

100+ Pieces

Product profile

Customization

Available

Standard or Nonstandard

Nonstandard

Application

Garment Machinery, Conveyer Equipment, Packaging Machinery, Food Machinery, Mining Equipment

Feature

Flame-Retardant, Anti-Static, Oil-Resistant, Corrosion-Resistant, Alkali-Resistant, Wear-Resistant, High Temperature-Resistance

Tensile Strength

Strong

Material

Rubber

Type

Toothed Belt

Size

Customize

Color

Black

Width

0-450

MOQ

Packaging

Box

Length

Customize

Logo

None/Jc

Transport Package

Box

Trademark

jcbelt

Origin

China

Key features

Full Size Customization: Any length, width, tooth profile, or special dimension available upon request.

Zero Slip Transmission: Meshing design eliminates slip for accurate, constant transmission ratio.

High Efficiency: Transmission efficiency reaches 98-99%, minimizing energy loss.

Low Noise Operation: Rubber material absorbs vibrations for quieter performance than chain drives.

Durable Construction: Reinforced with fiberglass cord and covered with Nylon 66 fabric.

Fast Sample Delivery: Sample orders shipped within 5-7 days.

No Tooling Fee: No tooling fee charged for most standard custom sizes.

Company profile

Fast DeliveryCustomization from DesignsMinor CustomizationQuality Assurance

Junchi (Guangzhou) Transmission Parts Co., Ltd

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Designs, Full Customization, etc.Export Year: 2026-02-28 CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤3.24h

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization and 3D software design capability, supported by five production lines, stated ongoing batch quantity reconciliation, and raw-material traceability. It reports quality assurance, six to ten quality-control staff, in-stock capacity, and lead times within 15 working days in both peak and off-season periods. However, it is explicitly not classified as a professional technical supplier, lacks written corrective-action and complaint-handling procedures, and finished products are checked by packing staff. No overseas agents, branches, warehouse, showroom, or offline trade-show participation are reported. Manufacturing subcontracting lacks a valid contract and standard operating procedure. Financial evidence is limited and indicates no operating revenue in the earlier reported year; monetary figures are omitted here for privacy.

Supplier typeThe supplier is explicitly identified as not being a professional technical supplier, although it provides 3D software design services. Its stated profile emphasizes 15 years of focus and responsibility, but the provided information does not establish a different formal supplier classification.

After-Sales capabilityThe supplier states that it provides installation guidance, tension adjustment, misalignment troubleshooting, remote assistance, and checklists. However, it has no written procedures or records for corrective and preventive actions or effective complaint handling, and it has no overseas agents or branches; therefore, service capability is demonstrated but its formal and international support infrastructure is weak.

R&D capabilityThe supplier provides 3D software design services and supports customization from customer designs, while its description claims drawing-to-solution response within 24 hours and technical troubleshooting support. Nevertheless, total experienced R&D engineer experience is stated as two, and the supplier is explicitly not a professional technical supplier.

Production capacityProduction resources include five production lines and multiple listed processing machines, with in-stock capacity and stated lead times within 15 working days in both peak and off-season periods. Batch quantity reconciliation is performed continuously, but subcontracting lacks a valid contract and standard operating procedure, and finished products are checked by packing staff.

Customization capabilityThe supplier explicitly offers flexible, full, minor, and design-based customization, as well as 3D software design services. Its stated customization scope includes width, thickness, holes, cleats, guides, and seamless endless configurations, supported by technical guidance.