Overview
The Lovejoy 100BB11 idler sprocket (part number 68514417465) is a ball bearing-supported tension device engineered for ANSI 100 roller chain applications. This unit features permanent lubrication and precision-machined construction to maintain consistent chain tension while minimizing wear on drive and driven sprockets. Idler sprockets reduce chain deflection, improve power transmission efficiency, and extend overall system life in industrial automation and machinery environments.
Key Features
- 11-tooth design sized for 100 roller chain pitch compatibility
- 3/4″ nominal bore for standard shaft applications
- Ball bearing support for smooth operation and reduced friction
- Permanently lubricated construction — no maintenance required
- High-strength hardened teeth resist wear and deformation
- Single-strand configuration for flexible mounting options
Technical Specifications
- Chain Pitch: 100 (1.25 inch)
- Tooth Count: 11
- Bore Diameter: 3/4″ nominal
- Bearing Type: Ball bearing, permanently lubricated
- Strand Configuration: Single strand
- Manufacturer: Lovejoy (formerly part of Timken Company)
- Part Number: 68514417465
- Model Series: 100BB11
- Condition: New in Box
Typical Applications
- Conveyor systems and material handling equipment
- Industrial machinery requiring chain tension control
- Power transmission systems in packaging, food processing, and manufacturing
- Retrofit and replacement applications in existing chain drive systems
Compatibility & Replacements
Compatible With
- ANSI 100 roller chain systems
- 1.25-inch pitch chain drives
- 3/4″ shaft applications (verify shaft compatibility with your system)
- Standard industrial sprocket assemblies using 100 chain
Replaces / Drop-In Replacement For
- 100BB11 series idler sprockets
- Similar 100 chain, 11-tooth ball bearing idler units
Works With
- Standard ANSI 100 roller chain (1.25-inch pitch)
- Lovejoy RunRightâ„¢ tensioner devices and assemblies
- Industrial coupling and power transmission systems
- Machinery requiring bolt-on idler tensioning solutions












