H/B series high power speed reducer

Name: H/B series high power speed reducer
SKU: WPEEDEA45A

Shunchang Packaging Machinery

SKU: WPEEDEA45A

Modular hardened-gear industrial gearboxes delivering up to 470,000 N·m in helical or bevel-helical form.

Stages: 1 (H1SH), 2 (H2, B2), 3 (H3, B3), 4 (H4, B4)
Output shaft: S solid shaft, H hollow shaft, D hollow shaft for shrink disk
Mounting: H horizontal, M horizontal without feet, V vertical
Output speed: 1.7-1200 r/min
Output torque: up to 470,000 N·m
Motor power: 2.52-5366 kW
Frame sizes: 1-22
Number of stages: 1-4
Nominal ratio by type (thermal tables): H1SH 1.25-5.6; H2/B2 5-28; H3/B3 12.5-112; H4/B4 80-450
Input speeds in tables: 750, 1000, 1500 r/min
Mounting forms: horizontal, vertical, shaft (axis) mounting, shrink disk mounting
Oil supply factor f9: 1.0 for horizontal units, 1.05 with forced lubrication (Table 24)
Type designation example: YFB 2 S H -10 -12.5 -A -CW

Overview

The YFH and YFB series are Yanfeng Group's high-power industrial gear units. YFH is the parallel-shaft (helical) type and YFB the right-angle (bevel-helical) type. Both are described in the catalogue as brand-new hardened tooth-flank gear units with a wide torque range, built on a modular unit-structure design. They can be mounted horizontally (with or without feet) or vertically, and are available with a solid output shaft, a hollow shaft, or a hollow shaft with shrink disk. The exploded view shows a heavy cast housing with bolted housing cover, end covers and shims, helical gear shafts on rolling bearings, input and output shafts with parallel keys, breather cap and lip-type oil seals. The gears are made of high-strength, high-quality alloy steel that is carburized and quenched. The catalogue lists the resulting advantages as high efficiency, long service life, ability to carry large axial and radial loads, low running noise, high reliability and compact structure. The cover page also highlights a three-layer high-density polymer paint finish that seals out dust and resists heat, premium ball bearings that reduce friction, and precision-ground alloy-steel gears for meshing accuracy. Units are built with one to four gear stages in frame sizes 1 to 22, with output speeds from 1.7 to 1200 r/min, output torque up to 470,000 N·m and motor powers from 2.52 to 5366 kW. The type designation encodes series (YFH/YFB), number of stages, output shaft design (S solid, H hollow, D hollow with shrink disk), mounting position (H horizontal, M horizontal without feet, V vertical), size, nominal ratio, assembly design (A, B, C, D) and input shaft rotation (CW/CCW). The selection guide walks through calculating the transmission ratio, checking the nominal power rating against driven-machine, prime-mover, starting and safety factors, checking peak torque, permissible additional radial force and actual ratio, and verifying thermal balance. Horizontal units use dip lubrication; forced lubrication is available on request and is used for vertical units, with thermal capacity tables provided for units without auxiliary cooling, with fan cooling, with cooling coil and with fan plus coil. The worked example in the catalogue is a blast-furnace feed conveyor drive.

Features

Hardened tooth-flank gearing in carburized and quenched high-strength alloy steel Modular unit-structure design with 1 to 4 stages and 22 frame sizes Helical (YFH, parallel shaft) and bevel-helical (YFB, right angle) versions Output torque up to 470,000 N·m; motor power 2.52-5366 kW Solid shaft, hollow shaft or hollow shaft with shrink disk output Horizontal, horizontal without feet, or vertical mounting High efficiency, long life, high axial/radial load capacity, low noise, high reliability, compact structure Dip lubrication standard; forced lubrication, fan cooling and cooling coil available

Variants & mounting

YFH (helical / parallel shaft) YFB (bevel-helical / right angle) Stages: 1 (H1SH), 2 (H2, B2), 3 (H3, B3), 4 (H4, B4) Output shaft: S solid shaft, H hollow shaft, D hollow shaft for shrink disk Mounting: H horizontal, M horizontal without feet, V vertical Assembly designs A, B, C, D Input shaft rotation CW / CCW Frame sizes 1-22

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