SINOCONVE 20PM Ribbed Belt for Extra-Wide Power Transmission with Strong Profile Stability
20PM Poly Drive Belt for Extra-Wide Power Transmission
The SINOCONVE 20PM Ribbed Belt uses 20 parallel ribs in the PM profile. The supplied reference dimensions are Pb = 9.4 mm, h ≈ 17 mm, and α = 40°. Nominal width: 190.5 mm.
A ribbed belt combines the flexible running characteristics of a flat belt with the pulley-grip characteristics of a V-belt. This makes it suitable for compact transmission layouts, smaller pulley diameters, high speed ratios, and multi-accessory drives when the belt, pulley, tension, and operating load are correctly matched.
5.0
Customization:
OEM and ODM Available
Manufacturing Experience:
35+ Years
Place of Origin:
China
Warranty:
Subject to the Order Contract
Packaging:
Plastic Sleeve and Export Carton
Urgent Delivery:
15-20 Days Subject to Confirmation
Delivery Time:
About 30 Days
Sample:
Available, Freight Collect
Minimum Order Quantity:
30 Pieces
Brand:
SINOCONVE
design customization
Please fill out the form below to request a quote or to request more information about us. Please be sure to upload customized requirement documents or pictures, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Matched Pulley Required
Yes
Custom Effective Length
Available
High Power Transmission
Yes
High Flexibility
Yes
Back Surface
Rough, Glossy, Fabric, SN
Kevlar Reinforcement
Available
Standard Cord Reference
Low-Stretch Polyester Cord
Material Options
CR, EPDM, EPDM+Kevlar
Nominal Belt Width
190.5 mm
Rib Angle
40°
Belt Height
Approximately 17 mm
Rib Number
20
Profile
PM
Model
20PM
Small Pulley Compatibility
Subject to Drive Design
Pitch Pb
9.4 mm
OEM/ODM
Available
Custom Marking
Available
Product Type
Ribbed Belt / Poly V-Belt
Length Mark
Effective Length Le
20PM Ribbed Belt
20PM is a 20-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 190.5 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
| Model | 20PM |
| Profile | PM |
| Rib Number z | 20 |
| Pitch Pb | 9.4 mm |
| Belt Height h | Approximately 17 mm |
| Rib Angle α | 40° |
| Reference Radius | 0.75 mm; the source table provides one combined PM radius value |
| Nominal Belt Width | 190.5 mm |
| Length Mark | Effective Length Le |
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
- 20-rib construction increases the working contact area compared with a single-rib belt.
- Confirmed nominal belt width is 190.5 mm for the 20PM 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
| Structure | Material / Function |
|---|---|
| Belt Top Surface | Wear-resistant polychloroprene rubber compound in the illustrated standard construction |
| Tension Cord | Low-stretch polyester cord embedded in an adhesive rubber compound |
| Base Compound | Parallel V-shaped ribs made from wear-resistant rubber compound |
| Alternative Compounds | CR and EPDM options; Kevlar reinforcement can be added according to the order |
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
| Material Option | Reference Warranty Distance |
|---|---|
| CR | 60,000 km |
| EPDM | 80,000 km |
| EPDM + Kevlar | 100,000 km |
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
| Surface Option | Reference |
|---|---|
| Rough Surface | Textured belt-back option |
| Glossy Surface | Smooth glossy belt-back option |
| Fabric Surface | Fabric-covered belt-back option |
| SN Surface | SN belt-back option |
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
| Effective Length Le Range | Limit Deviation |
|---|---|
| 2000 < Le ≤ 3000 mm | +12 / -24 mm |
| 3000 < Le ≤ 4000 mm | +15 / -30 mm |
| 4000 < Le ≤ 6000 mm | +20 / -40 mm |
| 6000 < Le ≤ 8000 mm | +30 / -60 mm |
| 8000 < Le ≤ 12500 mm | +45 / -90 mm |
| 12500 < Le ≤ 17000 mm | +60 / -120 mm |
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
6 = rib number
PK = profile type
1281 = effective length Le in mm
6 = rib number
PK = profile type
1281 = effective length Le in mm
This product page represents the 20PM rib-count/profile combination. The required effective length Le 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
- Heavy multi-rib transmission systems
Selection Information Required
To confirm the correct 20PM belt specification, please provide:
- Complete belt marking
- Effective length Le
- Rib number and profile
- Pulley groove dimensions
- Pulley diameters
- Center distance
- Operating speed
- Transmitted power
- Tensioning arrangement
- Material requirement
- Belt-back surface option
- Required quantity
- Sample or technical drawing if available
Final Confirmation: Final specifications, materials, dimensions, service conditions and warranty terms are subject to the confirmed order contract.
{{item.score}} Stars
{{item.pre}}%
{{item.nickname ? (item.nickname.slice(0, 2) + '*****') : item.source === 1 ? 'mall buyer' : '--'}}
{{item.comment_time}}
Review in the {{item.country}}
{{itemAttr.params_key}}: {{itemAttr.params_value}}
Get in touch with us
just leave your email or phone number in the contact form so we can send you a free quote for our wide range of designs
Related Products
QUICK LINKS
PRODUCTS
CONTACT US
Contacts: Leo Lei
Tel: 0086-18668582073
Email: sales@sinoconve.com
WhatsApp: 0086-16762209312
Address: Room 1602, sanlong building, tiangao street, south cbd, yinzhou district, ningbo, zhejiang ,china
We are focusing on material handling, power transmission and industry application.
Language
Copyright © 2026 Ningbo Sinoconve Belt Co., Ltd. - www.scconveyorbelt.com | Sitemap | Privacy Policy