Optibelt SK Wedge Belt
The most in demand belt we stock in Reliance! The wrapped Optibelt SK wedge belt was developed especially for mechanical engineering, replacing its predecessor, the classic V-belt.  In comparison to the V-belt, it transmits approximately 50% more power and enables more compact and is much more cost-effective
The wrapped SK wedge belt has the characteristics of the excellent Optibelt S=C Plus with an efficiency of almost 97% and can be used in the set without further measurements. 
Optibelt RED POWER 3 V-Belt
If you are looking for a maintenance free belt the Optibelt RED POWER 3 may just meet your requirements. Red Power 3 V-belts allows for a more compact and cost-efficient setup by reducing the number of belts required, which also decreases axle and bearing loads.
With a significantly longer service life and minimal maintenance requirements, the RED POWER 3 is an ideal solution for overloaded drives where conventional V-belts fall short. Cost savings of up to 35% can be achieved through reduced maintenance, fewer belt replacements, and the use of smaller pulleys. Unlike traditional V-belts, which require frequent re-tensioning, the maintenance-free RED POWER 3 eliminates this extra effort and associated costs.
The Optibelt RED POWER 3 delivers up to 50% higher performance compared to conventional V-belts. As a result, fewer belts are needed for the same power transmission, enabling sustainable cost savings through the use of narrower pulleys. Alternatively, smaller pulley diameters can be used without reducing the number of belts.  
Optibelt VB Classic V-Belt
Thanks to its versatility, the Optibelt VB is the classic choice among drive belts. Its strengths are especially evident in challenging drives for agricultural machinery, as well as in unique applications like V-flat drives in mechanical engineering.

Optibelt SUPER XE-POWER PRO Wedge Belt
The maintenance-free Optibelt SUPER XE-POWER PRO M=S ranks among the most powerful drive belts available. Its innovative design enables new opportunities for friction-locked drives, even with the smallest pulley diameters, under extreme temperature conditions, and at very high speeds.
The new tooth profile, developed through FEM analysis and practical testing, allows for very small minimum pulley diameters on internal pulleys. Additionally, the SUPER XE-POWER PRO M=S is now also compatible with external pulleys, enabling the design of more compact drive systems.
The SUPER XE-POWER PRO M=S is suitable for a wide range of applications and is especially well-suited for machine and special machine construction. It’s ideal for compressors, fans, pumps, lathes, drills, and any other scenarios that demand compact drive systems. 

Optibelt VARIO POWER Variable Speed Belt
Optibelt VARIO POWER variable speed belts are the ideal choice for precise, infinitely variable speed control. Their specialised construction ensures high dynamic load capacity, outstanding power transmission, and excellent control performance.
Space-saving drive solutions, optimum control behaviour, reduction of running temperature and a wide range of applications are the hallmarks of this belt.
The electrical conductivity of the VARIO POWER variable speed belts allows the safe dissipation of electrostatic charges. In the case of drives with insufficient electrical conductivity, this can be so strong that there is a risk of ignition due to the formation of sparks.
In the double-toothed optibelt VARIO POWER the double-toothed V-belt ensures better heat dissipation and thus significantly reduces the belt temperature.
The VARIO POWER features a fabric overlay that provides transverse rigidity while maintaining flexibility, thanks to its transverse fibres. This rigidity is further enhanced by the double-toothed design.

Optibelt RB Ribbed Belt
Optibelt RB Ribbed Belts are a flexible powerhouse.  The ribbed belt combines the high flexibility of the flat belt with the high performance of the V-belt. The V-shaped parallel ribs are made from a wear-resistant rubber compound. The high strength tension cord is designed for the many applications of the ribbed belt.
The tension cord is embedded in a rubber adhesive mixture and covers the entire width of the ribbed belt. A fiber-reinforced, wear-resistant rubber compound ensures smooth operation and a long service life, as well as resistance to heat and a limited resistance of oil. The small minimum pulley diameters are suitable for drives with high speed ratios as well as slow running drives. Ribbed belts are well suited for the use of back bend idlers, such as in serpentine drives. 
Optibelt Red Power Kraftband
Red Power Kraftband. The new design with optibelt RED POWER 3 kraftbands enables a space-saving and cost-effective construction thanks to a reduced number of kraftbands and the associated lower axle and bearing loads.
Its multiple service life and significantly reduced maintenance requirements make the optibelt RED POWER 3 kraftband a problem solver in overloaded drives with conventional kraftbands. Cost savings of up to 35 % are possible thanks to lower maintenance costs and a reduced need for replacement due to fewer belts and smaller pulleys. Conventional kraftbands have to be regularly re-tensioned throughout their service life. The maintenance-free optibelt RED POWER 3 eliminates this additional work and cost.  The optibelt RED POWER 3 achieves up to 50 % higher performance than conventional kraftbands. This means that fewer belts are required for power transmission, which enables cost savings thanks to narrower pulleys. Smaller pulley diameters can be used with the same number of belts.

Optibelt KB VB Kraftband
Optibelt KB VB kraftbands are used for extreme impact loads, large center distances in conjunction with small pulley diameters and vertical axes. Depending on the application, up to five narrow V-belts are used per kraftband. In special cases, power belts with more than five V-belts are also available. Set combinations are required when using several kraftbands per drive.