- LSL®
- Ningbo, China
- FOB export
Professional Transmission Belt Supplier
Direct from our Ningbo plant — wrapped V, cogged V, and timing belts for distributors, OEM programs, and long-term FOB China supply.
Wrapped V: A/B/C/CC/HM · Cogged V: AX/BX/HMX · Timing: 3M/5M/8M/14M/S3M/S5M/S8M · Rubber & PU · OEM · FOB China
Factory and R&D footage
- 20+ years
- Belt manufacturing in Ningbo
- FOB China
- Export-ready commercial terms
- OEM brand
- Private label & OEM programs
- Sample first
- Samples & mixed-size trial orders
Belt families we manufacture
Organized by drive construction and standard profiles — industrial, agricultural, automotive, and special-duty belts. Open a family to browse its product line and technical listing.
Wrapped V Belt
RubberClassical wrapped friction drives for pumps, compressors, fans, and general industrial equipment.
Standard profiles
A · B · C · CC · HM · SPZ · SPA · SPB · SPC · 3V · 5V · 8V
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Cogged V Belt
RubberRaw-edge cogged profiles for tighter sheaves, higher flexibility, and better heat dissipation.
Standard profiles
AX · BX · CX · XPZ · XPA · XPB · XPC · 3VX · 5VX · 8VX
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Rubber Timing Belt
RubberSynchronous rubber belts for positioning, textile machinery, and industrial power transmission.
Standard profiles
HTD 3M · 5M · 8M · 14M · S3M · S5M · S8M · MXL · XL · L · H · XH · AT · T
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Poly-V / Ribbed Belt
RubberMicro-rib and poly-V profiles for compact accessory drives and high-speed industrial routes.
Standard profiles
PK · PL · PM · PJ · PH · EP · DPK · micro-V rib profiles
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PU Timing Belt
PUPolyurethane synchronous belts for automation, clean conveying, and precision indexing.
Standard profiles
PU 2M · 3M · 5M · 8M · MXL · XL · L · H · open-end · coated
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Agricultural Belt
RubberClassical, wedge, banded, and variable-speed belts for harvesters and farm equipment.
Standard profiles
Classical agri V · wedge · banded · variable speed · harvest flat
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Automotive Belt
RubberAccessory poly-V, raw-edge, timing, and CVT belts for aftermarket and OEM programs.
Standard profiles
AVX · PK · EPDM PK · automotive timing · REL · CVT scooter
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Special Construction
Rubber / PUDouble-sided, coated, open-end, kevlar-reinforced, and custom belt builds.
Standard profiles
Double-sided · open-end · coated · kevlar · punched · custom builds
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Rubber & PU · OEM branding
Most programs start with rubber construction. PU timing and sleeve belts are available where cleanliness, flexibility, or fabricated surfaces matter.
- Rubber belts — wrapped V, cogged V, classical timing, poly-V, agricultural and automotive families
- PU belts — timing, open-end, coated and processed surfaces for automation and conveying
OEM brand available
LSL® is our house brand. OEM/private-label marking, packaging direction, and export documentation can be aligned to your program.
LSL® Belts
Zhejiang INJ Transmission System Co., Ltd.
Industrial applications
Our belt range is built for real equipment categories — not generic marketing segments.
How we work with buyers
Sample evaluation, mixed-size trial orders, and long-term repeat supply — with commercial terms aligned to FOB China export practice.
FOB China
Export terms from Ningbo. Commercial discussion covers port, packing, and documentation for your market.
Sample available
Send profile, length, and application context. We confirm construction before sample production.
Mixed sizes for trial
Trial orders can combine multiple profiles or sizes so you validate fit before program volume.
Distributor cooperation
We support distributor and regional partner programs with stable supply rhythm and technical follow-up.
A supplier that speaks belt profiles
Zhejiang INJ Transmission System Co., Ltd. (LSL®) is a manufacturing supplier — not a trading desk. Buyers come to us when they need correct wrapped V, cogged V, and timing belt coverage, stable FOB export support, and a team that stays with the project after the first inquiry.
Manufacturing base
Rubber and PU lines, mold coverage for classical and synchronous profiles, and factory QC for repeat industrial supply.
Profile depth
From wrapped V (A/B/C/CC/HM) and cogged V (AX/BX/HMX) to metric and imperial timing pitches — organized for sourcing review, not guesswork.
Partnership model
Samples, mixed-size trial orders, distributor programs, and OEM branding — structured for evaluation before volume commitment.
Typical cooperation path
Most long-term programs follow the same practical sequence.
01
Profile & application review
You share belt marking, machine type, or target profile. We confirm the correct family and construction.
02
Sample or mixed trial
Samples or mixed-size trial batches let your team validate fit, packaging, and market acceptance.
03
Repeat FOB supply
After alignment, we move into scheduled production and export supply for OEM, replacement, or distribution.
Full technical catalog index
Browse the complete SKU listing grouped by warehouse category when you need every series page.
Looking for a belt supplier you can work with long term?
Share your profiles, application, and target market. We focus on correct product understanding first — then samples, trial mixes, and repeat supply.