Bearing Services

Bearing Cleaning & Lubrication Facilities

National Precision Bearing specializes in precision bearing solutions for aerospace, defense, medical, dental, and industrial applications. We are equiped to handle a wide variety of requests! NPB offers shorter lead times, massive inventory, and precision solutions to fulfill any requirement! Call to find out how our experienced staff can help you manage the lifecycle of your bearings today!

Leadtime • Capacity • Factory Authorized • Bearing Types • Common Lubricants

UPDATE YOUR BEARING INVENTORY

Factory Authorized Relubrication to Your Specifications

AS9100 certified process
Relube and Refresh Your Expired Bearing Inventory
Offer this Service to Your Customers for their Expired Inventory
Choose from an Extensive Range of Lubricants
Small and Large Volume Orders Accepted
Same Day Service Available

NPB OFFERS A 5 DAY LEADTIME ON RELUBE SERVICES!

National Precision Bearing takes your deadlines very seriously, which is why we offer a fast 5 day lead time! Our cleanroom staff consists of National Precision's most experienced supervisors and technicians, with over 150 years of combined relubrication experience. Our employees understand the importance of efficiency in a high paced environment and will take the utmost care when processing your orders, while getting them to you in a timely fashion!

Relube and Refresh Your Expired Bearing Inventory
Offer this Service to Your Customers for their Expired Inventory
Small and Large Volume Orders Accepted
Same Day Service Available

NPB HAS THE CAPACITY TO HANDLE ALL OF YOUR RELUBRICATION NEEDS!

National Precision Bearing has expanded to a 1,618 sq ft cleanroom! With the added space comes added value and shorter lead times!

Two full size Ultrasonic Branson cleaning machines
8 ISO Class 6 work benches
1 ISO Class 5 work flow bench
Hundreds of lubricants
Dedicated and experienced full time staff
Various packaging options
Automated lubrication machine
55,526 total square foot operation

NPB IS AUTHORIZED BY MAJOR MANUFACTURERS TO RELUBRICATE THEIR BEARINGS!

National hosts a newly expanded cleanroom designed to effectively wash, relubricate, and refresh commercial, precision, and airframe bearings using an AS9100 certified process. Our factory certified facility features an ISO Class 6 environment with eight work benches and one ISO Class 5 work flow bench. The cleaning and relubrication process at NPB is audited and certified by both customers and 3rd party inspectors. The entire process is included in National Precision Bearing's AS9100 Rev. C certified quality system.

Certifications include:

NPB CAN RELUBRICATE A WIDE VARIETY OF BEARING TYPES!

NPB stocks a wide variety of specialty lubricants including food grade, low outgassing, and corrosive resistant greases. NPB has over 100 different lubricants in stock and regularly relubricates bearings with customer provided lubricants. Standard or special lubricant fill rates can be requested depending on type of bearings. Grease Plating, centrifuge, and other special application methods are available on request.

COMMONLY RELUBRICATED AIRFRAME BEARINGS

MS27640 KP( )
MS27641 KP( )A
MS27642 KP( )B
MS27644 DPP( )
MS27646 B500DD
MS27647 DW( )
MS27648 KP( )BS
MS27649 AW( )AK
MS21428 MB500DD

LUBRICANT AND FILL SPECIFICATIONS

NPB stocks a wide variety of specialty lubricants including food grade, low outgassing, and corrosive resistant greases. Below is a table of commonly specified lubricants.

BRAND NAME	BASIC TYPE	OPERATING TEMP. F	USES
Windsor L-245X (MIL-L-6085)	Synthetic Oil	–65 to +300	Light general purpose oil. Low torque.
Beacon 325	Synthetic Grease	–65 to +250	General purpose grease. Low torque.
Royco 27 (MIL-PRF-23827)	Synthetic Grease	–100 to +275	Corrosion resistant. Heavy loads and high speed.
Rheotemp 500	Synthetic (Non-silicone) Grease	–65 to +350	Oxidation inhibitor. High temperature and high speed.
Mobil 28 (MIL-PRF-81322)	Synthetic Hydrocarbon Grease	–65 to +350	Low torque. Low speed oscillation.
SRI-2	Mineral Grease	–20 to +350	Long life. Water resistant. High speed and high temperature.
Krytox 240AC	Fluorinated Grease	–30 to +550	High temperature.
Multitemp SRL	Synthetic Grease	–40 to +300	Very quiet. Low torque.
Braycote Micronic 601EF	Perfluorinated Polyether Grease	–112 to +400	Low pressure/vacuum environments. Hostile chemical environments.
Aeroshell 33 (BMS3-33)	Synthetic Grease	-100 to +250	Corrosion resistant. Heavy loads.

Standard or special lubricant fill rates can be requested depending on type of bearing. Standard fill for miniature ball bearings is 25-35% fill, standard fill for many airframe type bearings is 80-100%. Grease Plating, centrifuge, and other special application methods are available on request.