Author: Site Editor Publish Time: 21-01-2026 Origin: Site
The core technical parameters of RF87-NA45-Y112-D340 reducer are as follows:
1. Disassembly of model meanings
RF87: R series helical gear hardened surface reducer, F = flange mounting, 87 = frame size (medium size)
NA45: Hollow shaft output, shaft diameter φ45mm (with locking disc/expansion sleeve)
Y112: adapted to IEC standard Y series motor, frame size 112 (common 4 poles, power about 4kW)
D340: Center distance/installation distance 340mm (or flange installation size code)
2. Core performance parameters (RF87 series general + model corresponding)
Applicable motor: Y112 base, 4P (1450r/min), about 4kW standard three-phase asynchronous, can be equipped with frequency conversion/brake/explosion-proof
Reduction ratio range: Single machine: 1.39~246.54; Commonly used: 3.33/5.3/7.13/13.33/27.84/47.58/93.38 and other two-stage/three-stage transmissions, which can be combined with larger speed ratios
Output speed: about 5.9~1045r/min (enter according to 1450r/min). The larger the speed ratio, the lower the speed and the greater the torque.
Output torque: about 500~1550N·m (RF87 series) hard tooth surface (HRC58-62), strong load-bearing and impact resistance
Transmission efficiency: Level 2 ≈ 96%, Level 3 ≈ 94% helical gear meshing, low energy consumption and low heat generation
Installation form: flange installation (F), horizontal/vertical universal, compact structure, saving space
Output shaft: hollow shaft NA45 (φ45mm), with locking disc shaft mounting type, directly mounted on the working shaft, easy to disassemble and assemble
Center distance/installation distance: D340 (340mm) determines the matching size of the installation space and shaft extension
Protection level: IP55 (standard) dust-proof, splash-proof, suitable for industrial environments
Noise: 65~75dB(A) Precision grinding, smooth operation and low noise
Lubrication: VG220/320 industrial gear oil for lifetime lubrication or regular replacement, simple maintenance
Material: Box: HT250/ductile iron; Gear: 20CrMnMo (carburizing and quenching); Shaft: 42CrMo High strength, wear resistance, long life
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