Brand: FAFNIR
FAFNIR MUA 3/4 W/1012 KR Wide Inner Ring Ball Bearing | 3/4 Inch Bore Unit | Set Screw Locking
The FAFNIR MUA 3/4 W/1012 KR is a premium wide inner ring ball bearing insert designed specifically for demanding industrial applications requiring superior shaft support and secure retention. Featuring an extended inner ring on both sides, this design maximizes bearing contact with the shaft, minimizing fretting and extending the operational life under heavy radial and moderate thrust loads. The deep groove internal geometry and high-quality, through-hardened steel construction (typically SAE 52100) ensure exceptional load-carrying capacity and high-speed performance characteristic of FAFNIR's engineering excellence. The 'W' designation confirms the secure set screw locking mechanism, providing reliable, non-marring fixation for simple mounting and dismounting operations.
Equipped with the specialized 'KR' seal configuration, this unit provides robust protection against harsh contaminants, washdowns, and particulate ingress, making it ideal for environments ranging from agricultural machinery to food and beverage processing (where suitable lubricant is utilized). This self-aligning bearing accommodates minor initial misalignment, reducing stress on the shaft and housing. By integrating advanced sealing technology and precision internal clearances, the MUA 3/4 W/1012 KR significantly reduces maintenance frequency and total cost of ownership (TCO) compared to standard commercial bearing inserts, ensuring maximum uptime across critical industrial machinery.
Key Features
Extended Wide Inner Ring provides maximum shaft stability and minimizes axial movement.
Set Screw Locking (W Series) ensures simple yet robust installation and removal, reducing shaft damage.
Robust KR Sealing configuration offers superior exclusion of dirt, moisture, and fine particulates.
Precision-machined raceways and deep groove geometry for high radial load capacity and smooth operation.
Suitable for agricultural equipment, material handling systems, HVAC, and light-to-medium duty conveyors.
Manufactured from high-grade bearing steel for extended fatigue life and corrosion resistance.
