SPZ SPA SPB SPC Wedge V-Belt | High Power, OEM Custom, 3-Year Warranty

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SPZ/SPA/SPB/SPC Industrial Wedge V-Belt – Narrow V-Belt for Compressors, Cement Mixers & Heavy Machinery

Model Number
Check below, custom

B-630

Product Description

The Apexcoupling SPZ/SPA/SPB/SPC series is a high-performance industrial wedge V-belt (narrow V-belt) engineered for reliable power transmission in demanding industrial applications. Featuring a narrow wedge profile with up to 50% higher power transmission capacity than classical V-belts, these belts are the preferred choice for applications where space, weight, and power capacity are critical.

Manufactured from premium neoprene rubber with high-strength polyester tension cords and a double fabric cover, these belts offer excellent resistance to oil, heat, ozone, and abrasion. The narrow wedge design provides superior flexibility and enables operation on smaller pulleys.

Available in SPZ (10mm), SPA (13mm), SPB (17mm), and SPC (22mm) profiles with customizable lengths to fit your specific machinery. Ideal for air compressors, cement mixers, cooling fans, industrial pumps, conveyors, crushers, mixers, and general industrial drives.

✅ 50% higher power capacity than classical V-belts. Narrow wedge design for compact, space-saving drives. Oil, heat, ozone & abrasion resistant – long service life. Anti-static – meets ISO 1813 standards. OEM customization – custom length available. 3-year warranty – quality assured.

SPZ/SPA/SPB/SPC Profile Dimensions

Profile	Top Width (mm)	Height (mm)	Angle	Minimum Pulley Diameter (mm)	Length Range (mm)	Equivalent (RMA)
SPZ	9.7 – 10.0	8.0	40°	63	365 – 4000	3V
SPA	12.7 – 13.0	10.0	40°	90	576 – 9110	–
SPB	16.3 – 17.0	13.0 – 14.0	40°	140	1000 – 16824	5V
SPC	22.0	18.0	40°	224	1861 – 22943	8V

📐 Lengths listed are pitch lengths (Lp). Custom lengths available upon request. Data sources: PIX, BANDO, Baopower.

SPZ/SPA/SPB/SPC vs Classical V-Belts – Why Choose Wedge?

Feature	Wedge V-Belt (SPZ/SPA/SPB/SPC)	Classical V-Belt (A/B/C)
Power Capacity	50% higher than classical belts	Standard
Space Efficiency	Narrower profile – saves space	Wider profile
Flexibility	Superior – runs on smaller pulleys	Moderate
Drive Efficiency	Higher – up to 98%	Standard
Best for	Compact drives, high power, demanding applications	Standard drives, larger pulleys

✅ Choose SPZ/SPA/SPB/SPC wedge V-belts for applications requiring high power transmission in compact spaces, such as compressors, cement mixers, fans, pumps, and heavy industrial machinery.

Product Structure

Tensile Cord – High-modulus polyester cords provide tensile strength, low stretch, and dimensional stability.
Rubber Body – SBR/BR or neoprene rubber compound with oil, heat, ozone, and abrasion resistance.
Double Fabric Cover – PET/cotton double fabric wrap offers extreme flexibility and superior wear and oil resistance.
Narrow Wedge Profile – 40° angle provides optimal grip and power transmission.

💡 How it works: The wedge V-belt transmits power through friction between the belt’s sidewalls and the pulley grooves. The narrow wedge profile provides a larger contact area with the pulley, enabling higher power transmission in a more compact space. The double fabric cover protects against wear, oil, and heat, while the high-strength polyester cords ensure dimensional stability and low stretch under load.

Product Features & Advantages

Advantage	Benefit
Up to 50% Higher Power Capacity	Outperforms classical V-belts – fewer belts needed
Narrow Wedge Design	Compact drives – saves space and weight
Double Fabric Cover	Extreme flexibility, superior oil & wear resistance
High-Strength Polyester Cords	Low stretch, dimensional stability, excellent support against overloads
Anti-Static	Meets ISO 1813 standards – safely dissipates static electricity
Oil & Heat Resistant	Withstands harsh industrial environments – long service life
Wide Temperature Range	-25°C to +100°C
Maintenance-Free	No lubrication required – reduces downtime
High Efficiency	Up to 98% transmission efficiency – energy saving
OEM Customization	Custom length available – fits your specific machinery
3-Year Warranty	Quality assured – long-term reliability

Applications

Air Compressors – Compressor drives
Cement Mixers – Heavy-duty mixing equipment
Cooling Fans – Industrial fan drives
Industrial Pumps – Water and slurry pumps
Conveyors – Material handling systems
Crushers & Mixers – Mining and aggregate processing
Grinding Machines – Precision grinding equipment
Excavators – Construction and earthmoving equipment
Blowers & Extruders – Industrial ventilation and processing
Textile Mills – Spinning and weaving machinery

Why Choose Apex Coupling for SPZ/SPA/SPB/SPC V-Belts?

Advantage	Description
Factory Direct	Competitive B2B pricing – no middlemen
Premium Materials	Neoprene rubber, high-strength polyester cords, double fabric cover
Higher Power Capacity	50% more power than classical V-belts
Wide Profile Range	SPZ (10mm), SPA (13mm), SPB (17mm), SPC (22mm) – covers all applications
OEM Customization	Custom length available – fits your specific machinery
Anti-Static	ISO 1813 compliant – safe operation
3-Year Warranty	100% free replacement for any quality issues
Fast Delivery	Stocked items available for quick shipment

FAQ

Q: What are SPZ, SPA, SPB, and SPC V-belts?
A: They are metric wedge (narrow) V-belts with 40° angle. SPZ (10mm top width), SPA (13mm), SPB (17mm), and SPC (22mm). They offer up to 50% higher power capacity than classical V-belts.

Q: What is the advantage of wedge V-belts over classical V-belts?
A: Wedge V-belts have a narrower cross-section, providing higher power transmission capacity (up to 50% more) while requiring less space. They also run on smaller pulleys.

Q: What applications are these belts suitable for?
A: Air compressors, cement mixers, cooling fans, pumps, conveyors, crushers, mixers, grinding machines, excavators, blowers, extruders, and general industrial machinery.

Q: Is the belt oil and heat resistant?
A: Yes. The belts are oil, heat, ozone, and abrasion resistant, with an operating temperature range of -25°C to +100°C.

Q: Is the belt anti-static?
A: Yes. The belts meet ISO 1813 standards for anti-static belts.

Q: Can the belt be customized?
A: Yes. We offer OEM/ODM customization – custom length available to fit your specific machinery.

Q: What is the warranty?
A: 3 Years – 100% free replacement for any quality issues.

Request a Quote

Send us your profile (SPZ, SPA, SPB, or SPC), required length, and any customization requirements. Our engineers will recommend the optimal belt and provide a quotation within 24 hours.