Overview
The INA GAY 12 NPPB pillow block bearing housing unit combines a precision radial insert ball bearing with a durable cast iron housing. This unit features a 12mm bore diameter and a ball bearing insert type, providing reliable mechanical power transmission. INA is a leading manufacturer of high quality housed and flanged pillow block bearings featuring cast iron housings and precision insert ball bearings. The GAY 12 NPPB is part of INA’s proven lineup of mounted bearing solutions suitable for diverse industrial applications.
Key Features
- Precision radial insert ball bearing with spherical outer ring for shaft misalignment compensation
- Cast iron housing with high tensile strength and threaded for standard SAE grease nipples for lubrication
- Replaceable bearing insert design for reduced downtime during maintenance
- Inner ring extended on both sides for reduced tilting and smoother operation
- P-seal configuration for dust and moisture protection
- Grub screw locking mechanism for secure bearing retention
Technical Specifications
The following specifications are standard for 12mm bore INA housed bearing units in this series:
- Bore Diameter: 12 mm
- Bearing Type: Radial insert ball bearing, single row
- Housing Material: Cast iron
- Seal Type: P-seals (both sides)
- Locking Style: Grub screw fixation
- Lubrication: Grease, via SAE-threaded nipple
Typical Applications
INA pillow block bearing housing units are widely used in:
- General industrial machinery and conveyor systems
- Pump and motor drive applications
- Gearbox input and output shafts
- Agricultural equipment and processing machinery
- Textile and packaging machinery
- Light to moderate load-rated applications requiring shaft alignment flexibility
Compatibility & Replacements
Compatible With
- Standard industrial shafts with h6 to h9 grade fits
- Standard machine frame mounting provisions
- Industrial lubrication systems using standard grease nipples
- 12mm bore bearing inserts from INA and equivalent manufacturers
- Motor and gearbox couplings rated for 12mm shafts
Replaces / Drop-In Replacement For
The INA GAY 12 NPPB is compatible with other INA 12mm bore housed bearing units within the same series. For specific replacement compatibility with competitive brands, verify bearing and housing dimensions and mounting provisions. Consult INA technical documentation or your system integrator before ordering replacement units.
Works With
- INA radial insert ball bearing series (GRAE, RAE, and GAY designs)
- Standard SAE/ISO cast iron pillow block housings
- 12mm shaft diameter equipment and machinery
- NLGI Grade 2 and 3 industrial greases compatible with rolling element bearings
- Precision shaft alignment and measurement tools for installation verification
