Company Profile

National Precision Bearing

National Precision Bearing offers ball, NU/NX, spherical plain, needle, aerospace, silver thin, stalking tool, and miniature bearings. National Precision Bearing specializes in precision metric and inch ball bearings for industrial, aircraft, and miniature applications. National Precision's special customer service highlights include: re-lubrication services, special packaging, JIT deliveries, consigned inventory, back-up safety stock, long-term fixed pricing, etc.

Company Info

P.O. Box 5012
Preston, WA 98050


  • in Ball Bearings

    NPB are manufacturers of R-Series single row, inch ball bearings, available from 1/8 through 1-1/2 inch bore sizes, and 3/8 through 2 1/4 inch outside diameter sizes. The 6000 Series are normally used where space limitations are a concern and shaft sizes are relatively large. The 1600 Series are designed to be interchangeable with standard domestic inch ball bearings. The 600 Series are extra small with an available outside diameter range of .6299 to 1.0236 inches.

  • in Bearing Distributors

    National offers precision inch and metric ball bearings specializing in miniature, aircraft and industrial applications. ABEC 3, 5, and 7 grades are available. Angular contact, double row ball, roller and caged needle roller bearings are also available. Other bearings offered include stainless steel & plastic, self-lubricating, military & airframe control bearings, bushings and rod ends. Aviation instrument and dental bearings are always available.

  • in Bushings

    National Precision manufactures spherical plain bushings available in both an inch and a metric series. Several options include standard or heavy duty, sealed or unsealed, self-lubricating, extended inner race, and angular contact (thrust type).

  • in Cam Followers

    National Precision Bearing is a manufacturer of track roller and cam followers commonly used in thrust reversers, after burners, flap tracks and canopies.. These products manufactured to military and aerospace specifications in accordance with the standards of AS-3990.

  • in Flanged Ball Bearings

    NBC offers their L and R Series' of flanged and radial open and shielded metric miniature ball bearings. Products are single row design available from 1mm - 10mm bore sizes and in stainless or chrome steel.

  • in Inch Size Ball Bearings

    NPB manufactures extra light, single row inch size ball bearings available with 1/8" to 1 1/2" bore sizes and in open, sealed and shielded configurations. Products are used for high speed applications.

  • in Metric Bearings

    National Precision specializes in metric ball bearings for miniature, aircraft and industrial applications. They stock aviation instrument and dental bearings, as well as ABEC 3, 5, and 7 grade miniature types. Metric fractured race spherical plain designs are also available from National.

  • in Miniature Bearings

    National is a manufacturer of miniature bearings in inch, metric, specialty and dental designs.  The inch series miniature bearings are single row ball types available from .0400 through .7500 inch bore sizes.  The metric series are available from 1 mm to 10 mm bore sizes. Specialty miniature bearings include angular contact, modified dimensions and high-speed medical and dental designs. They are available in stainless steel and come in both open and shielded configurations.

  • in Needle Bearings

    National is a supplier and distributor of needle roller bearings from INA, RBC, Koyo/Torrington, IKO and more. Types include drawn cup, roller clutch, heavy duty, and thrust needle roller designs. Also available are MIL Spec products including MS17130, MS17131, MS21438, MS21439, MS24461, MS24462, MS51961, MS51962,  MS24463, MS24464, MS24465 and MS24466.

  • in Plain Bearings

    National manufactures plain bearings, including standard duty, self-lubricating, heavy-duty, extended inner race, and angular contact. Various designs are available in metric and inch sizes with outside diameters from 0 to 9 inches or 0mm to 500mm, and in open or sealed configurations. Plain bearings are used in high load and severe misalignment conditions, and in applications that require oscillation, tilting, or other conditions that involve high rotation speeds.

  • in Rod End Bearings

    National Precision Bearing are producers of rod end and spherical bearings. Rod ends are self lubricating with TFE liners but can also be supplied as metal-to-metal types. They are suitable for many aircraft landing gear door applications. National Precision Aerospace bearings are used in Airbus, Boeing, Cessna, Piper, Learjet, McDonnell-Douglas, and many other aircraft manufacturers (including military aircraft). Other products offered include ball, spherical plain, roller, stainless steel and plastic bearings.

  • in Sealed Ball Bearings

    National Precision manufactures a number of sealed ball bearing types, including industrial airframe, non-standard, extra small, V groove, extra inch small, and the company's 6000, 6200, 6300 and 1600 series'. All sealed ball bearings are designed for industrial applications.

  • in Self-Lubricating Bearings

    National Precision Bearing offers self lubricating and pre-lubricated bearings. Their "NU Series" of self lubricating bearings are used where excessive friction is found. They have a high load capacity and can operate at -328 to 536 degrees F. The "NX Series" of pre-lubricated bearings are used during low friction applications and can also carry high load capacities. These bushings can operate for long periods with only a small amount of lubrication. Thrust washers, ball, spherical plain and needle roller bearings are also available.

  • in Single Row Ball Bearings

    NPB's R-Series single row, extra light, inch ball bearings are available in a wide range of sizes, with outer diameters from 3/8" to 2 1/4" and bearing diameters from 1/16" to 1/4". R-Series single row ball bearings are designed to handle static loads up to 1,335 pounds and dynamic loads up to 1,920 pounds.

  • in Spherical Bearings

    National Precision Bearing is a manufacturer of load series spherical plain bearings which are used in high load and severe misalignment conditions. These bearings are available in open and sealed configurations, and are made in both inch and metric dimensions. Types include standard duty, self lubricating, heavy duty, angular contact, and extended inner race designs. Other bearing types offered by National Precision include miniature and ball bearings, and needle roller bearings.

  • in Stainless Steel Ball Bearings

    NPB manufactures five types of stainless steel industrial ball bearings, including its R series, 1600 series, 6000 series, 6200 series, and 6300 series. The R series are available from 1/8 through 1-1/2 inch bore sizes, while the 6000 series is used in small space applications.

  • in Thin Section Bearings

    National Precision Bearing is a manufacturer of a precision thin section bearing.  Types include standard, from 1" bore to 35", angular, radial and four-point.

  • in Thrust Roller Bearings

    National Precision Bearing is a supplier and distributor of thrust needle roller bearings designed for high axial load capacity where envelope space is minimal. These bearings consist of a stamped or machined cage and rollers.