Engineering guide
Bronze vs. Steel Worm Wheels
Material selection balances mating compatibility, wear, scoring, strength, corrosion, temperature and lubrication.
AuthorEver-power Custom Worm Gear Engineering Team
StatusHuman technical review required
PurposeRFQ preparation
Not a substituteApproved drawings and tests
Step 1
Why bronze is common
- A hardened steel worm and suitable bronze wheel can provide favorable anti-scuffing and conformability
- The exact alloy and condition must be specified
Step 2
Alternative discussions
- Tin or aluminum bronze: strength, wear, casting and temperature
- Steel: scoring, finish, hardness pair and lubricant
- Cast iron: speed, load, cost and wear
- Polymer/composite: creep, moisture, temperature and load
Step 3
RFQ evidence
- Exact material and condition
- Mechanical/chemistry requirements
- Casting or forging route
- Mating worm material, hardness and finish
- Lubricant and validation plan
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