B3SH spiral bevel gear reducer high-power hard tooth surface reducer reliable and durable

Publish Time: 2025-03-20     Origin: Site

The B3SH reducer belongs to the B series direct-axis gearbox reducer. The following is its performance comparison with the K series, ZFY series, and JZQ series reducers:

  • Transmission efficiency

    • B3SH reducer: Both cylindrical gears and spiral bevel gears adopt the grinding process, with an interstage efficiency of about 98%.

    • K series reducer: efficiency up to 95% or more. The gears are carburized and quenched with high-quality alloys, finely processed with teeth, smooth transmission and small energy loss.

    • ZFY series reducer: high efficiency, up to about 90%. The gears are made of high-quality alloy steel by carburizing and quenching, with high accuracy and relatively small friction loss during transmission.

    • JZQ series reducer: efficiency coefficient is 0.94. Its gears and shafts are made of high-quality carbon steel, and have been tempered and have relatively low manufacturing accuracy and transmission efficiency.

  • Carrying capacity

    • B3SH reducer: The allowable torque range is 5.8 - 900kNm, the power range is 2.2 - 3000kW, and can withstand large loads.

    • K series reducer: high overload capacity, power up to 200kW or above, torque range of 200 - 50000Nm, can meet various load conditions.

    • ZFY series reducer: The main parameters such as center distance have been optimized and designed. The gears are made of high-quality alloy steel, with large load-bearing capacity and can be widely used in heavy-duty industrial departments such as metallurgy and mining.

    • JZQ series reducers: suitable for general lifting, transportation, mining machinery, etc., with a load-bearing capacity relatively lower than the previous types of reducers. They are often used in occasions where the load is not particularly huge.

  • Noise level

    • B3SH reducer: adopts a sound-absorbing box structure, a large box surface area, a large fan, as well as advanced tooth grinding technology, with low noise.

    • K series reducer: adopts a variety of sealing structures and multi-directional noise reduction measures to ensure excellent low noise performance.

    • ZFY series reducers: high gear accuracy, stable transmission and low noise.

    • JZQ Series Reducer: The gears are manufactured with 8-level accuracy, with relatively low accuracy, and the noise level may be slightly higher than the previous Reducer.

  • Speed ​​ratio range

    • B3SH reducer: The speed ratio range is 5-400, and the transmission ratio is finely graded, which can meet different operating conditions.

    • K series reducer: The basic type speed ratio range is 5.36 - 197.37, and the K series/R series combination can reach 32625.

    • ZFY series reducers: mainly include four series: ZDY (single stage), ZLY (two stages), ZSY (three stages) and ZFY (four stages). The speed ratio range is relatively wide and can meet the transmission requirements of different equipment.

    • JZQ series reducer: There are 9 speed ratios, namely 48.57, 40.17, 31.50, 23.34, 20.49, 15.75, 12.64, 10.35, and 8.23, with relatively few speed ratio choices.

  • Structural features

    • B3SH reducer: Direct-interval shaft design, adopts a general design solution to realize a universal box for parallel shafts and direct-interval shafts, and reduce the types of parts.

    • K series reducer: vertical output, compact structure, adopts a module combination system design, with a variety of motor combinations, installation forms and structural solutions.

    • ZFY series reducer: includes parallel shaft series and vertical shaft series. Parallel shaft reducer is produced according to national standards, and the product is optimized for design.

    • JZQ series reducer: The structural type is a two-stage three-axis cylindrical helical teeth horizontally divided fully sealed, with strong versatility and interchangeability, and simple maintenance.


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