S Series Helical Worm Gear Box

High Torque · Low Noise · 100% Load Tested

Power Range: 0.12-45 kw
Output Torque: Up to 4000 N.m
Ratio Range: 10.27-230.48
Output Speed: 0.3-145 rpm
Output shaft: Hollow shaft / Solid shaft
Mounting Types: Foot‑mounted / Flange‑mounted / Shaft‑mounted
  • Warehouse stacker & lifting equipment

  • Chemical & environmental agitator

  • Concrete & building material machinery

Product Overview

S Series helical worm gear box, one of our K/F/R/S modular gear units. It adopts combined transmission of front helical gear and worm & worm wheel. The housing is high-strength cast iron, and gears are carburized, quenched and precision ground.
It features compact structure, 90° right-angle output and good self-locking property. With low noise and versatile mounting options, it covers a wide range of gear ratios, delivers stable load capacity and easy maintenance. Widely applied in conveyor, packaging machinery, food equipment and automation lines.

Type Selection

K…Y…

Foot-mounted helical-bevel gear units with solid shaft

KAB…Y…

Foot-mounted helical-bevel units with hollow shaft

KA…Y…

Helical-bevel gear units with hollow shaft

KF…Y…

Flange-mounted helical-bevel gear units with solid shaft

KAF…Y…

Flange-mounted helical-bevel gear units with hollow shaft

KAT…Y…

Torque-arm-mounted helical-bevel gear units with hollow shaft

K(KF,KA,KAF,KAB,KAZ)S…

Shaft input helical-bevel gear units

KA(K,KF,KAF,KAB,KAZ)…RF…Y…

Combinational helical-bevel gear units

KA(K,KF,KAF,KAB,KAZ) S…RF…

Shaft input combinational helical-bevel gear units

Key Advantage

  • High power density, Reducer efficiency > 90%

  • Hardened & Precision ground gears, low noise

  • Modular structure, multiple mounting forms

  • Ultra low temperature rise & Long service lifetime

Technical Specifications

  • Power: 0.18-22KW
  • Ratio: 10.27-230.48
  • Input Speed: 1450RPM, 960RPM, 710RPM
  • Output Speed: 0.1-270Rpm
  • Torque: Up to 4000N.m
  • Mounting Type: Foot-mounted / Flange-mounted / Shaft-mounted
  • Output Shaft Type: Hollow shaft / Solid shaft
  • Gear Material: 20CrMnTi
  • Gear Hardness: Surface hardness: HRC58~62   Core hardness: HRC33~40
  • Gear Precision: DIN 6 or ISO 6
  • Output Shaft Material: 40Cr
  • Housing Material: Cast iron  HT200 or HT250
  • Bearing Brand: C&U, HRB, LYC, ZWZ
  • Oil Seal Brand: NAK
  • Noise: 65-75dB

Input power and maximum torque

Size 37 47 57 67 77 87 97
Structure S… SA… SF… SAF… SAT… SAZ…
Input power (kw) 0.18-0.75 0.18-1.5 0.18-3 0.25-5.5 0.55-7.5 0.75-15 1.5-22
Ratio 10.27-152 11.46-244.74 10.78-196.21 11.5-227.20 9.96-241.09 11.83-222 12.75-230.48
Maximum torque (N.m) 90 170 295 520 1270 2280 4000

Commercial Information

MOQ: 1 set

Packing: Polywood

Delivery: 7-45 days

Payment:
FOB, CIF, CFR

Method:
T/T or L/C

Port:
Shanghai or Ningbo

Request A Quotation

Fill in the form and our team will reply within 24 hours.

    Your data is always safe with us. We will only contact you in conjunction with your enquiry.

    Contact Directly

    Email: info@hbreducer.com
    WhatsApp: +86-137 7601 2486

    Quick Tips

    Please provide power, speed, torque and mounting requirements for a fast quotation.