Coupling lineup for engine machines in construction, agricultural, and road machinery.
Rich market experience! Couplings for engines
The engine generates torsional vibrations due to explosions, and if the torsional vibration frequency matches the natural frequency of the drive shaft system, including the coupling, there is a risk of damage to the drive components due to resonance. At KTR, we use a torsional vibration analysis program to propose couplings suitable for your company. KTR's couplings for engines have been adopted by domestic and international manufacturers in construction machinery, road machinery, agricultural machinery, compressors, etc., with a global shipment of over 200,000 units annually.
basic information
【Relevant Product Lineup】 〇Couplings ・ BoWex FLE-PA/PAC Consists of two parts: hub and flange, making assembly easy. Permissible temperature is 130℃, allowing use even in high-temperature engine rooms. FLE-PAC is wear-resistant and has a long lifespan. Applications: hydraulic excavators, bulldozers, wheel loaders, etc. ・MONOLASTIC One-piece design for good mounting compatibility. Low torsional stiffness specification using natural rubber, absorbing vibrations and shocks. Applications: engine-driven machinery for construction and agricultural equipment. ・ BoWex-ELASTIC, SINULASTIC Absorbs torsional vibrations generated by engine machinery. Resistant to high loads. Applications: generators, pumps, piston compressors, etc. 〇Pump Mounting Flanges and Brackets ・Bellhousing Cast iron and steel brackets that connect the engine and hydraulic pump, designed for high strength to withstand heavy loads. Can be proposed together with couplings. 〇Air-Cooled Heat Exchanger ・MMC Cooler Can simultaneously cool multiple media such as air, water, and oil with one unit. Specifications and shapes can be customized according to customer requirements.
Price range
Delivery Time
Applications/Examples of results
〇 Engine-driven machinery - Construction machinery, road machinery Hydraulic excavators, bulldozers, wheel loaders, cranes, etc. - Agricultural machinery Harvesters, hoppers, forestry machinery, etc. - Others Engine-driven compressors, cleaning machines, crushers, etc.
Related Videos
Line up（5）
| Model number | overview |
|---|---|
| BoWex FLE-PA, FLE-PAC | Two-part structure with a metal hub and polyamide resin flange |
| MONOLASTIC | One-piece design flexible flange coupling |
| BoWex ELASTIC | Available in three different elastomer hardnesses, with a cardan shaft connection type also in the lineup |
| Pump mounting flange | Mounting bracket for engine-hydraulic pump. Can be proposed together with the coupling |
| Air-cooled heat exchanger type MMC | Cooling compatible with air, water, and oil media. Specifications and dimensions can be flexibly designed according to customer specifications |
catalog（5）
Download All Catalogs
News about this product（2）
-
We will be exhibiting at bauma 2025 from April 7 to April 13!
KTR will exhibit at the international trade fair for construction machinery and equipment, 'bauma 2025', which will be held in Munich, Germany from April 7 (Monday) to April 13 (Sunday), 2025. The VAROLASTIC flange coupling will be unveiled for the first time at this exhibition! This coupling effectively reduces torsional vibrations and protects the drive train. 【Exhibition Overview】 Dates: April 7 (Monday) to April 13 (Sunday), 2025 Time: 9:30 AM - 6:30 PM (until 4:30 PM on the last day) Venue: Munich Exhibition Center Booth Number: Stand 145 (Hall A4) Exhibits: Various couplings *Tickets are required for participation. Please check the details via the link below. Please note that there will be no Japanese staff attending this exhibition.
-
We will be exhibiting at bauma China 2024 from November 26 to November 29!
KTR will exhibit at "bauma China 2024," one of Asia's largest international trade fairs for construction machinery and equipment, to be held in Shanghai, China, from November 26 (Tuesday) to November 29 (Friday), 2024. We plan to showcase a variety of our products suitable for construction and mining machinery, focusing on engine couplings such as "BoWex FLE-PA/PAC" and heat exchangers like "MMC." We invite you to visit our booth! Local support will be provided by Japanese staff. We sincerely look forward to your attendance. 【Exhibition Overview】 Dates: November 26 (Tuesday) to November 29 (Friday), 2024 Venue: Shanghai New International Expo Centre (SNIEC) Hall Booth Number: N4.525 Exhibits: Various couplings, heat exchangers, hydraulic-related components
