Needle Roller Bearings (needle bearing) is a roller with a cylindrical roller bearings, relative to its diameter, both the thin and long rollers. This is called needle roller. Despite its smaller cross-section, still has a higher load bearing capacity, therefore, especially suitable for the radial space-constrained occasions.

Needle contour surface in the proximal surface of the slight contraction. Needle and raceway contact line results can be amended to avoid damaging the edge of the stress.

Needle Bearings (Needle Roller Bearings)

National Precision Bearing stocks a wide variety of domestic and imported needle roller bearings and is authorized to distribute for a number of quality manufacturers including Koyo/Torrington, INA, RBC, IKO and more. There are many types of needle rollers and deciding which one to use requires careful analysis of the bearings application. General considerations include:

• Needle Bearing life and reliability
• Rotating speed
• Load ratings and direction of loading
• Shaft / raceway design
• Housing design
• Lubrication

National also supplies MIL Spec needle roller bearings such as: MS17131, MS17130, MS51961, MS51962, MS24461, MS24462, MS24463, MS24464, MS24465, MS24466, MS21438, MS21439

Our needle roller bearings can be found in the following applications:

• Gear pumps
• Mud pumps
• Oil field pumping jacks
• Helicopter rotors and transmissions
• Telehandlers
• Material handling equipment
• Hydraulic pumps
• Sheave Blocks
• Hoist drum shaft
• Marine crankshafts and connecting rods
• Pipe handling tables in steel mill equipment
• Paper punch presses
• Planet gears and mainshaft bearings of a clutch drive or mechanical press
• Calendar rolls in textile machinery
• Railroad tampering equipment