Machine Shafts

Machine Shafts are the machine components, mostly cylindrical in cross-section, which support the revolving parts of a machine, such as pulley, gear, fly-wheel, etc. Arbors or Machine Shafts not only support a revolving part but also transmit high level of torque. These results in Machine Shafts can be subjected to bending and high levels of torsional stress. After our Machine Shafts are hardened, shafts are accurately grounded and sometimes chrome plated as per the clients̢۪ requirement.
Highlights

• Sufficient Strength
• Low sensitivity to stress concentration
• Ability to withstand head and case hardening treatment
• Good machinability
• High degree of toughness and wear resistance
• Geometrical accuracy
• Guaranteed optimum performance

Applications Of Machine Shafts

• Tube Mill
• Section Mills
• Special Purpose Textile Machine
• Packaging Machinery
• Printing Machine
• Gear Boxes

Raw Material Used

• EN-24
• EN-19
• Sometimes EN-31

Manufacturing Tolerance For Shaft

• Bearing Seat : K-6
• Length
  • +/- 0.5 mm upto 500 mm.
  • +/-1.0 mm beyond 500 mm length.
• Fillet Radius : 1 to 3 R.
• Keyway Width : Within 0.1 mm.
• Keyway Depth : Within 0.2 mm.
• Ground Tolerance : Within 0.025 mm

Shafts Usually Fails Due To Fatigue, Which Arises Due To

• Presence of cyclic loads
• Stress concentration which may be due to operation, like Keyway
• Wrong alignment of bearings, drilled holes, etc.