Needle roller bearing components

Needle roller bearing inner ring

Provide inner rings separately for needle roller bearings. In applications where the shaft cannot be hardened and ground, the inner ring of needle roller bearings is usually combined with needle roller and cage components or used together with stamped outer ring needle roller bearings.

Two series of inner rings are available:

Two inner circle series

There are also different width versions available

When they are wider than the standard, they allow for greater axial displacement of the shaft relative to the bearing seat

Provides an excellent mating surface for the lip of the contact seal (Figure 3)

Should be located on both sides to prevent axial movement (regardless of whether the ring has interference fit or clearance fit)

One side can be tightly attached to the shoulder of the shaft

The other side can be fixed by a stop ring, spacer or nut

roller pin

Needle rollers can be used in full roller bearing configurations for low-speed or oscillating applications. If the shaft and bearing seat holes can be used as raceways, then compared to bearings with retainers, this compact bearing configuration has higher load-bearing capacity and is more cost-effective (→ raceways on the shaft and inside the bearing seat).

roller pin

Made of carbon chromium bearing steel

Hardness ranging from 58 to 65 HRC

Indicating that it has undergone fine grinding