Product Overview
The Flender H2SH10 stands as a premier solution for industrial power transmission, bridging the gap between standard drive units and specialized heavy machinery. With a 90kW input rating, this unit is built to manage the immense mechanical stresses of primary drive systems. The H2SH10 utilizes advanced gear grinding technology to achieve a high contact ratio, which significantly lowers noise emissions and vibration levels. Its modular internal architecture allows for rapid customization of gear ratios, making it a versatile choice for both high-speed and high-torque requirements in the heavy industry sector.
Technical Parameter Table
| Parameter | Specification |
| Rated Input Power | 90 kW |
| Nominal Torque (T_2) | 38,000 Nm |
| Output Shaft Diameter | 140 mm |
| Center Distance | Optimized for Size 10 Frame |
| Housing Material | High-Grade Nodular Cast Iron |
| Lubrication Type | Splash Lubrication / Pressure Feed Ready |
| Efficiency | Approximately 97% |
| Average Unit Weight | 890 kg |
Product Features: H2SH10 Exclusives
Superior Housing Rigidity: The Size 10 casing is engineered with internal cross-ribbing that prevents housing distortion during 90kW peak loads, ensuring perfect gear alignment and extending bearing life.
High-Volume Oil Sump: Unlike smaller models, the H2SH10 features an enlarged oil reservoir that enhances natural heat dissipation, often eliminating the need for external cooling in moderate environments.
Optimized Tooth Flank Geometry: The helical gears feature a specific longitudinal crowning profile that compensates for shaft deflection under maximum torque, providing an even load distribution across the entire tooth width.
Selection Guide & Calculation Factors
When selecting the H2SH10 for your project, it is essential to consider the Service Factor (f_s). For a 90kW application, the actual load profile (Uniform, Moderate Shock, or Heavy Shock) dictates the longevity of the unit. We recommend a service factor of at least 1.5 for conveyor drives and 2.0+ for crushers. Additionally, verify the Thermal Limit Rating; if the ambient temperature exceeds 30°C, adding an integrated mechanical fan or an external oil-to-air cooler is a prudent choice to maintain oil viscosity.
Related Model Reference Table
| Model Code | Input Capability | Shaft Configuration | Connection Method |
| H2SH09 | Up to 55-75 kW | Solid Shaft | Keyed Coupling |
| H2DH10 | Up to 90 kW | Hollow Shaft | Shrink Disk (Keyless) |
| B2SH10 | Up to 90 kW | Right-Angle | Spiral Bevel + Helical |
| H2SH11 | Up to 132 kW | Solid Shaft | Heavy-Duty Flange |
Industry Applications
Mining & Extraction: Main drives for heavy-duty apron feeders and primary crushers.
Metal Processing: Driving units for rolling mills and heavy-duty coilers.
Construction Materials: Large-scale rotary kilns and cement mill auxiliary drives.
Energy & Environment: Industrial-scale waste shredders and biomass processing plants.
FAQ
1. What is the maximum radial load the H2SH10 output shaft can handle?
The H2SH10 is designed for high torque, but specific radial load limits depend on the point of application on the shaft. For belt or chain drives, we provide detailed load diagrams to ensure the internal bearings are not overstressed.
2. Does the 90kW rating change based on the gear ratio?
Yes. While the frame is rated for 90kW, the mechanical power limit varies slightly across different ratios. We provide a specific rating table for each ratio from 6.3 to 18.0 to ensure your motor is perfectly matched.
3. What type of seals are used for the H2SH10 in dusty environments?
Standard units use high-quality radial lip seals. However, for mining or cement applications, we highly recommend upgrading to Taconite seals, which provide a grease-purged labyrinth to block abrasive dust.
4. Can this unit be supplied with a backstop?
Absolutely. The H2SH10 can be fitted with an integrated, maintenance-free backstop to prevent reverse rotation in inclined conveyor applications.
5. Is the H2SH10 compatible with synthetic lubricants?
Yes, using synthetic oil (such as VG220 or VG320) is recommended for high-load 90kW operations to improve thermal capacity and extend oil change intervals up to 20,000 hours.
6. How is the unit protected against corrosion for sea transport?
All Flender H2SH10 units are treated with an internal VCI (Volatile Corrosion Inhibitor) oil and finished with an epoxy-based external primer, ensuring protection during long-term storage or maritime shipping.
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