Overview
The Grove Gear B213-2 Flexaline gear reducer is a compact worm-style speed reducer engineered for torque multiplication and low-speed output in industrial automation, material handling, and mechanical power transmission. The Grove Gear Flexaline wormgear reducer is a legacy product line known for reliable performance in demanding applications. This unit features a 30:1 reduction ratio and .328HP capacity, making it suitable for conveyor drives, winches, mixers, and similar equipment requiring high holding torque and smooth operation. The B213-2 designation indicates a right-hand output shaft configuration.
Key Features
- 30:1 gear reduction ratio for significant speed reduction and torque multiplication
- Worm drive design provides smooth, quiet operation and inherent load-holding capability
- Compact, cast iron housing construction for durability and heat dissipation
- Precision-ground and polished worm shaft for enhanced efficiency and reduced noise
- Industry-standard modular design enables direct replacement capability
- Right-hand output shaft configuration (B213-2 designation)
- Factory lubricated with premium oil for immediate operation
Technical Specifications
- Input shaft diameter: 5/8 inch
- Output shaft diameter: 7/8 inch
- Gear ratio: 30:1
- Power rating: .328 HP
- Housing style: Cast Iron
- Output configuration: Right-Hand (model suffix -2)
- Shaft design: Alloy steel input worm, precision-ground
- Lubrication: Factory-filled with premium compounded oil
- Operating temperature range: -10°F to 105°F (standard ambient conditions)
- Mounting: Industry-standard footprint compatible with most B-series replacements
Typical Applications
- Conveyor belt drives and speed reduction
- Winch and hoist systems requiring load-holding capability
- Mixer and agitator drives
- Crushers and grinding equipment
- Packaging machinery
- Material handling equipment
- Any low-speed, high-torque application requiring smooth, quiet operation
Compatibility & Replacements
Compatible With
- Direct-coupled motor inputs (typically 56C frame size or equivalent)
- Industry-standard flexible couplings
- Standard input speeds: 900 RPM, 1150 RPM, 1425 RPM, 1750 RPM typical motor speeds
- Variable frequency drives (VFD) when properly rated
Replaces / Drop-In Replacement For
- Grove Gear Flexaline B213 series (models B213-1, B213-3 with different hand configurations)
- Original Alling-Lander OE Series B213 equivalent units
- Grove Gold wormgear reducers in comparable size class
- Similar capacity legacy worm reducers with 3.00 x 4.75 inch mounting footprint
Works With
- AGMA Compounded No. 7 and No. 8 lubricants (standard requirement)
- Viton® seal-compatible synthetic oils (e.g., Mobil SHC 634) for extended operating temperatures
- Standard industrial electric motors with 56C and 143T frame configurations
- Flexible coupling systems for vibration isolation
- Multi-position mounting arrangements with optional factory venting modifications




