SPA 1400 OPTIBELT SK V-Belt 12.7x10 mm

Overview

The SPA 1400 OPTIBELT is a high-performance narrow V-belt from the optibelt SK S=C Plus series, designed for efficient and reliable power transmission in industrial machinery.

The standardized SPA profile has a nominal top width of approximately 12.7 mm and a height of approximately 10 mm. The designation 1400 identifies the belt's 1400 mm reference length.

Its wrapped construction provides durable running surfaces and reliable interaction with compatible V-belt pulleys. The belt is suitable for electric motor drives, pumps, fans, compressors, conveyors and a wide range of industrial power transmission systems.

Industrial Applications

The SPA 1400 OPTIBELT is suitable for:

• Electric motor drives
• Industrial pumps
• Fans and blowers
• Compressors
• Conveyor systems
• Agricultural machinery
• Machine tools
• Manufacturing equipment
• Industrial transmissions
• General power transmission systems

OPTIBELT SK Series

optibelt SK is a high-performance wedge belt series developed for industrial power transmission.

The wrapped construction and standardized narrow profile provide efficient torque transmission while maintaining compact drive dimensions.

The SK series features the S=C Plus system, allowing belts of the same nominal designation to be used together in multiple-belt drives without additional length matching.

OPTIBELT specifies efficiency of almost 97% for the SK series in correctly designed drive systems.

SPA Narrow V-Belt Profile

The SPA designation identifies a standardized metric narrow V-belt profile.

Nominal cross-section:

Top Width: approx. 12.7 mm

Height: approx. 10 mm

The narrow SPA profile is designed to provide high power transmission capability within a compact drive arrangement.

Compared with conventional classical V-belt profiles, narrow wedge belts can provide increased power transmission capability when used with correctly designed pulleys.

SPA 1400 Reference Length

The designation 1400 identifies the nominal reference length:

Reference Length Ld / Lw: 1400 mm

This value should not be confused with the inside or outside circumference of the belt.

When selecting a replacement, the complete SPA 1400 designation should be used rather than relying only on a physical measurement of a worn belt.

S=C Plus System

The S=C Plus designation is an important feature of the optibelt SK series.

OPTIBELT manufactures these belts to tight length tolerances, allowing belts with the same nominal designation to operate together in multiple-belt drives without additional length measurement or matching.

This provides important advantages in industrial installations using several parallel belts:

• Easier belt replacement
• Uniform load distribution
• Reduced installation time
• No additional length matching
• Reliable multiple-belt operation

Wrapped Construction

The SPA 1400 OPTIBELT SK has a wrapped construction.

The textile cover protects the belt body and provides durable surfaces for interaction with the pulley grooves.

The wrapped construction offers:

• Good abrasion resistance
• Stable belt guidance
• Reliable friction characteristics
• Protection of the belt body
• Long service life in industrial applications

Standards

The optibelt SK SPA series is manufactured according to recognized international standards for high-performance narrow V-belts.

DIN: DIN 7753-1

ISO: ISO 4184

These standardized dimensions facilitate the use of SPA belts with compatible industrial V-belt pulleys.

Technical Specification

Manufacturer: OPTIBELT

Series: optibelt SK S=C Plus

Designation: SPA 1400

Product Type: V-belt

Belt Type: High-performance narrow V-belt / wedge belt

Construction: Wrapped

Profile: SPA

Nominal Top Width: approx. 12.7 mm

Nominal Height: approx. 10 mm

Reference Length Ld / Lw: 1400 mm

DIN Standard: DIN 7753-1

ISO Standard: ISO 4184

Length Matching System: S=C Plus

Drive Efficiency: almost 97% under suitable operating conditions

Measurement System: Metric

SPA 1400 OPTIBELT Designation Explained

SPA - standardized metric narrow wedge belt profile

1400 - 1400 mm reference length

OPTIBELT - manufacturer

SK - high-performance wrapped wedge belt series

S=C Plus - precise belt length consistency allowing installation in sets without additional length matching

The complete designation is important when selecting a replacement because belt profile and reference length must correspond to the pulley system.

Power Transmission

The SPA profile transmits mechanical power through friction between the belt sidewalls and the grooves of the pulley.

Correct belt tension is essential for effective power transmission. Proper installation helps:

• Reduce belt slip
• Limit heat generation
• Provide uniform power transmission
• Reduce premature wear
• Extend belt and pulley service life

For higher power requirements, several SPA belts can operate in parallel on a multi-groove pulley.

Multiple-Belt Drives

The S=C Plus system makes SPA 1400 OPTIBELT particularly suitable for multiple-belt drives.

Belts with the same designation can be installed as a set without additional factory or workshop length matching.

When servicing a multiple-belt drive, replacing the complete belt set is recommended to maintain uniform tension and load distribution.

Operational Advantages

• High-performance SPA narrow profile.
• Standard 1400 mm reference length.
• Wrapped construction for industrial operation.
• S=C Plus system for multiple-belt drives.
• Efficiency of almost 97% under suitable drive conditions.
• Compliance with DIN 7753-1 and ISO 4184.

Replacement and Belt Selection

When replacing an SPA 1400 OPTIBELT, verify:

• SPA profile
• 1400 mm reference length
• Pulley groove profile
• Number of belts
• Required transmitted power
• Rotational speed
• Pulley diameters
• Installation tension
• Operating environment

A replacement belt should not be selected solely by measuring the outside circumference of the existing belt because reference, inside and outside lengths are different values.

AI OVERVIEW

The SPA 1400 OPTIBELT SK S=C Plus is a high-performance wrapped narrow V-belt with a standardized SPA profile of approximately 12.7x10 mm and a 1400 mm reference length. Designed for industrial power transmission, it complies with DIN 7753-1 and ISO 4184 and supports multiple-belt drives without additional length matching through the S=C Plus system.

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FAQ

What is the SPA 1400 OPTIBELT?

It is a high-performance narrow V-belt from the optibelt SK S=C Plus series designed for industrial power transmission.

What does SPA mean?

SPA identifies a standardized metric narrow wedge belt profile.

What is the cross-section of an SPA belt?

The nominal SPA cross-section is approximately 12.7x10 mm.

What does 1400 mean?

1400 identifies the belt's 1400 mm reference length.

Is 1400 mm the inside length?

No. The SPA 1400 designation refers to the reference length. Inside and outside lengths are different values.

What series does SPA 1400 belong to?

The belt belongs to the optibelt SK S=C Plus series.

What does S=C Plus mean?

S=C Plus indicates precise length consistency, allowing belts with the same designation to be installed together in multiple-belt drives without additional length matching.

Can several SPA 1400 belts operate together?

Yes. The S=C Plus system is specifically suitable for multiple-belt drive arrangements.

What is the efficiency of optibelt SK belts?

OPTIBELT specifies efficiency of almost 97% for this series under suitable drive conditions.

Is SPA 1400 a wrapped belt?

Yes. The optibelt SK is a wrapped high-performance wedge belt.

Which standards apply to SPA 1400?

The optibelt SK series complies with DIN 7753-1 and ISO 4184.

Where is SPA 1400 commonly used?

Typical applications include pumps, fans, blowers, compressors, conveyors, electric motor drives, agricultural machinery and industrial production equipment.

Is SPA a classical V-belt profile?

No. SPA belongs to the standardized narrow high-performance wedge belt family.

Can another manufacturer's SPA 1400 replace the OPTIBELT belt?

A standardized SPA 1400 belt may be dimensionally compatible, but performance characteristics and application requirements should also be checked.

Does correct belt tension matter?

Yes. Correct tension is essential for efficient power transmission, reduced slip and proper belt service life.

Can old and new belts be mixed in a multiple-belt drive?

Replacing the complete set is recommended to maintain uniform tension and load distribution.

Does SPA 1400 require an SPA pulley?

Yes. The pulley groove geometry must be suitable for the SPA narrow wedge belt profile.

Can SPA 1400 be used with an electric motor?

Yes. SPA belts are widely used in industrial drives powered by electric motors, provided the drive is correctly designed for the required power, speed and pulley dimensions.

What is the parent product category?

The correct industrial parent category is Narrow V-Belts / Wedge Belts.

Who manufactures SPA 1400?

The described SPA 1400 belt is manufactured by OPTIBELT.