SINOCONVE 12PM Ribbed Belt for Paper-Industry Equipment with Stable Tracking

12PM Ribbed Belt

12PM is a 12-rib rubber ribbed belt using the PM profile. The confirmed profile reference is Pb 9.4 mm, belt height h approximately 17 mm, and rib angle 40°. The supplied nominal-width table gives 114.3 mm for this rib-count/profile combination. The belt combines flat-belt flexibility with V-rib wedge action for compact, high-contact power transmission. Available compound references include CR, EPDM, and EPDM with Kevlar reinforcement, while rough, glossy, fabric, and SN back-surface options can be selected. It is suitable for paper-industry machinery, agricultural machines, fodder cutters, sugar-cane cutters, and heavy multi-rib transmission systems. The final effective length Le, material, cord, surface, pulley dimensions, and operating conditions must be confirmed before production.

Confirmed Technical Data

Dimensional note: The supplied standard states that pitch and belt height are reference dimensions. Pitch cumulative tolerance is important and is affected by working tension and the tensile-member elastic modulus.

Product Advantages

• 12-rib construction increases the working contact area compared with a single-rib belt
• Confirmed nominal belt width is 114.3 mm for the 12PM model
• Parallel ribs combine the flexibility of a flat belt with the wedge action of a V-belt
• Low-stretch tensile reinforcement supports stable belt length and coordinated rib loading
• Multiple compound and belt-back surface options are available according to the application

Material Structure

Transmission Characteristics

• High flexibility
• High power-transmission capability
• Suitable for relatively small pulley diameters
• Large speed ratios are possible in a correctly designed drive
• Good frictional power transmission
• Insensitive to torque peaks and short-term overloading within the confirmed drive design

Compound Options and Reference Warranty Distance

The supplied material describes these as reference warranty distances. Final material, service conditions, warranty scope, and warranty period are subject to the confirmed order contract.

Belt-Back Surface Options

The supplied material states that the four illustrated belt-back surfaces have little difference in overall performance. Surface selection should therefore be based on contact, appearance, friction, noise, and application requirements.

Effective Length Le Tolerance Reference

The tolerance information is referenced to JB/T 5983-1992 and GB/T 16588-2009 in the supplied material.

Preferred Effective Lengths Listed in the Supplied Standard

2240, 2360, 2500, 2650, 2800, 3000, 3150, 3350, 3550, 3750, 4000, 4250, 4500, 5000, 5600, 6300, 6700, 7100, 8000, 9000, 10000, 11200, 12500, 13200, 14000, 15000, 17000 mm

Model Marking

Marking format = rib number + profile type + effective length. Example: 6 PK 1281 means 6 ribs, PK profile, and 1281 mm effective length Le. This product page represents the 12PM rib-count/profile combination; the required Le length must be confirmed separately.

Related Rib-Count Models

4PM, 6PM, 8PM, 10PM, 12PM, 14PM, 16PM, 18PM, 20PM

Typical Applications

Paper-industry machinery, agricultural machines, fodder cutters, sugar-cane cutters, and heavy multi-rib transmission systems.

Selection Information Required

Please provide the complete belt marking, effective length Le, rib number, profile, pulley groove dimensions, pulley diameters, center distance, speed, transmitted power, tensioning arrangement, material requirement, back-surface option, quantity, sample, or drawing. Final specifications and warranty terms are subject to the order contract.