Overview
The Martin 60BB13H ball bearing idler sprocket is a precision-engineered component for power transmission and material handling systems. This 60BB13H model suits 60 chain drives and features a ball bearing assembly press-fitted into a hardened steel hub. The unit offers smooth, quiet operation and extended service life in conveyor systems, chain tensioners, and idler applications.
Key Features
- Ball bearing type — press-fitted bearing provides low friction and smooth operation
- Hardened steel construction — accurately machined (not stamped) teeth for precise chain engagement
- Multiple bore options — available with 5/8″ bore for standard shaft installations
- Low maintenance — sealed bearing design reduces lubrication requirements
- Adjustable chain tension — ideal for use as a tensioning idler or to change chain direction
Technical Specifications
- Bearing Type: Ball
- Chain Number: 60
- Number of Teeth: 13
- Pitch (Chain): 3/4″ (0.750″)
- Bore Diameter: 5/8″ (0.6250″)
- Outside Diameter: 3.49″
- Pitch Diameter: 3.134″
- Hub Outside Diameter: 1.901″
- Length Through Bore: 0.72″
- Material: Steel (unhardened teeth)
- Hardened Teeth: No
- Series: BB-H (Type A)
- Weight: Approximately 0.76 lbs
Typical Applications
- Conveyor belt tensioners and drive systems
- Industrial chain transmission assemblies
- Bearing change idler installations
- Material handling equipment
- Machinery requiring adjustable chain tension
Compatibility & Replacements
Compatible With
- 60 roller chain (ANSI 60 pitch standard)
- 3/4″ pitch chain drives
- Standard shafts with 5/8″ bore diameter
- Martin power transmission systems
- Generic conveyor and chain drive equipment using 60 chain
Replaces / Drop-In Replacement For
Verify with your system integrator for direct replacement applications. The Martin 60BB13H is frequently specified as a replacement or upgrade for worn or damaged ball bearing idler sprockets in existing 60 chain systems.
Works With
- 60 chain sprockets and drives
- Chain tightening mechanisms
- Idler shaft assemblies
- Conveyor drive systems using 3/4″ pitch
- Custom bearing installations (Martin offers alteration services)
