Multi‑Ribbed Belt
SQUAREROPE® multi-groove drive belts combine the flexibility of flat belts with the lateral stability of banded belts, featuring a specially engineered belt construction. These belts provide smooth operation, high speed ratios, and high maximum speeds, delivering high efficiency and energy savings. Designed for high-speed power transmission applications such as machine tools, grinders, and floor polishers, as well as light-load, low-speed equipment like fitness machines.
Engineered for Performance.
Smooth and vibration‑free transmission
Can be applied to small pulleys
High‑speed transmission capability
Saves transportation space and facilitates smaller, more compact designs.
Transmission efficiency is strong to conventional V‑belts
Internal Structure.
Detailed breakdown of the reinforcement layers and materials used. Designed for maximum durability and efficiency in every rotation.
Also written: 6PK1600 · 6 PK 1600 · North American: 630K6
Belt Labeling.
SQUAREROPE® Multi-groove Drive Belts are labeled with the number of ribs, type and length: 1) Number of ribs: represented by a number. 2) Belt type: PJ and PK represent two types of multi-groove belts. 3) Belt length: The pitch length of the belt is indicated by a number, and the unit is mm.
Belt Specifications
SQUAREROPE® multi-groove belts are manufactured in accordance with the international standard ISO 9982 and the Japanese automobile standard JASO E109.
Cross Section | Rib Pitch bo(mm) | Belt Thickness h(mm) | Length Range Ld(mm) | Min Pulley Dia ddmin(mm) | Quote |
|---|---|---|---|---|---|
| PJ | 2.34 | 4 | 508-2540 | 20 | PJ |
| PK | 3.56 | 5 | 508-2540 | 45 | PK |
Hover over the table to verify dimensions.
Product datasheet
Multi-Ribbed Belt: specifications and dimensions in one printable PDF.
PDF · English
Frequently Asked Questions
The difference is the rib spacing (pitch): 2.34 mm on PJ and 3.56 mm on PK. PJ belts are also thinner (4 mm high, vs 5 mm for PK), so they can run on smaller pulleys: the minimum pulley diameter is 20 mm for PJ and 45 mm for PK. The two profiles are not interchangeable: the belt must match the pulley's groove profile.
Engineered for Performance.
Smooth and vibration‑free transmission
Can be applied to small pulleys
High‑speed transmission capability
Saves transportation space and facilitates smaller, more compact designs.
Transmission efficiency is strong to conventional V‑belts
Internal Structure.
Detailed breakdown of the reinforcement layers and materials used. Designed for maximum durability and efficiency in every rotation.
Also written: 6PK1600 · 6 PK 1600 · North American: 630K6
Belt Labeling.
SQUAREROPE® Multi-groove Drive Belts are labeled with the number of ribs, type and length: 1) Number of ribs: represented by a number. 2) Belt type: PJ and PK represent two types of multi-groove belts. 3) Belt length: The pitch length of the belt is indicated by a number, and the unit is mm.
Belt Specifications
SQUAREROPE® multi-groove belts are manufactured in accordance with the international standard ISO 9982 and the Japanese automobile standard JASO E109.
Cross Section | Rib Pitch bo(mm) | Belt Thickness h(mm) | Length Range Ld(mm) | Min Pulley Dia ddmin(mm) | Quote |
|---|---|---|---|---|---|
| PJ | 2.34 | 4 | 508-2540 | 20 | PJ |
| PK | 3.56 | 5 | 508-2540 | 45 | PK |
Hover over the table to verify dimensions.
Product datasheet
Multi-Ribbed Belt: specifications and dimensions in one printable PDF.
PDF · English
Frequently Asked Questions
The difference is the rib spacing (pitch): 2.34 mm on PJ and 3.56 mm on PK. PJ belts are also thinner (4 mm high, vs 5 mm for PK), so they can run on smaller pulleys: the minimum pulley diameter is 20 mm for PJ and 45 mm for PK. The two profiles are not interchangeable: the belt must match the pulley's groove profile.
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