What is the material and heat treatment method of the output shaft of the BL series cycloidal pinwheel reducer

The material and heat treatment of the output shaft of the BL series cycloidal pinwheel reducer are as follows:

1、 Common materials

Conventional small and medium-sized models (BL12-BL33): 40Cr alloy structural steel

Heavy duty models for large models (BL39 and above): 35CrMo

Low end simple version: A few use 45 # steel (not recommended for heavy loads)

2、 Standard heat treatment process

1. Overall quenching and tempering treatment

Quenching+high temperature tempering, hardness HB220~250

Function: Enhance the overall toughness of the shaft, resist bending and torsion, and prevent shaft breakage.

2. High frequency surface quenching of journal/mating position

Quenching hardness HRC52~58

Function: Wear resistant, wear-resistant, and extend the service life of bearing assembly positions.

3. Keyway area

Do not perform surface quenching, retain tempering toughness, and avoid cracking during key installation by knocking.

3、 Process purpose

Core toughness: impact resistance, continuous axis

Surface hardness: wear-resistant, resistant to rotation and friction

Stable accuracy: not easily deformed, ensuring assembly concentricity