NTN Bearing

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NTN Bearing is a machine element that constrains relative motion to only the desired motion, and reduces friction between moving parts. The design of the bearing may, for example, provide for free linear movement of the moving part or for free rotation around a fixed axis; or, it may prevent a motion by controlling the vectors of normal forces that bear on the moving parts. Most bearings facilitate the desired motion by minimizing friction. Bearings are classified broadly according to the type of operation, the motions allowed, or to the directions of the loads (forces) applied to the parts.


Rotary bearings hold rotating components such as shafts or axles within mechanical systems, and transfer axial and radial loads from the source of the load to the structure supporting it. The simplest form of bearing, the plain bearing, consists of a shaft rotating in a hole. Lubrication is used to reduce friction. In the ball bearing and roller bearing, to reduce sliding friction, rolling elements such as rollers or balls with a circular cross-section are located between the races or journals of the bearing assembly. A wide variety of bearing designs exists to allow the demands of the application to be correctly met for maximum efficiency, reliability, durability and performance.


NTN 4T-30215 tapered roller bearings

Open Type Standard
16**/6*** series 25000

NTN 30221U tapered roller bearings

22222 2.75 in
5.5 in 900 rpm

NTN EC-6310LLU deep groove ball bearings

+0.000/-0.005 6
0.125 ~ 4 Electoless Nickel Pl

NTN K25X31X13 needle roller bearings

Flange Type Single
6802 Square Type

NTN NUP217 cylindrical roller bearings

Medium Series 26.9 in
529875 lbf 11.5 in

NTN 51206J thrust ball bearings

2 1/8 in 16 mm
G1202KPPB4 1.843 in

NTN HMK3520 needle roller bearings

Available Double
Bearings with Housin Yes (with retaining

NTN NF213 cylindrical roller bearings

1.48 1.2595 in
A2126 A2000

NTN PK30X42X39.8 needle roller bearings

Flange Type Available
Bearings with Housin 8 Days

NTN HTA044DB angular contact ball bearings

No No
Tapered hole adapter No

NTN KV78X86X47.8ZW needle roller bearings

Double Flanged Pilot Type
[Steel] Steel VV (Non-Contact Rubb

NTN 51107 thrust ball bearings

47 7 Days
Flange Type Available