JOJI needle roller and cage assemblies are self-contained, ready-to-install bearing units. In applications where the shaft and housing bore can be used as raceways, the assemblies can be used to create bearing arrangements that require minimal radial space.

JOJI drawn cup needle roller bearings feature a deep-drawn, thin-walled outer ring. Drawn cup needle roller bearings are typically used in applications where the housing bore cannot serve as a raceway for the needle roller and cage assembly, yet a very compact and economical bearing arrangement is required. These bearings are mounted in the housing with an interference fit. This allows for a simple and economical design of the housing bore, as no shoulder or retaining ring is required to axially locate the bearing.
The hardened steel drawn outer ring forms a non-separable unit with the needle roller and cage assembly of these bearings.

JOJI needle roller bearings with machined rings are made of high-carbon chromium bearing steel. JOJI offers needle roller bearings in various series and sizes with or without ribs on the outer ring. JOJI also offers versions with or without an inner ring.本。

The outer diameter of the JOJI self-aligning needle roller bearing is designed as a convex spherical surface. Two polymer seat rings with concave spherical surface design are combined in a stamped steel ring and mounted on the outer ring.

JOJI combined needle roller bearings consist of both radial needle roller bearings and thrust bearings. They can accommodate both radial and axial loads. Combined needle roller bearings are particularly suitable for applications where other locating bearing arrangements would require too much space, where axial loads are too heavy, where speeds are too high, or where lubrication is insufficient in bearing arrangements with simple thrust washers. JOJI offers combined needle roller bearings in three basic designs:

• Needle roller/angular contact ball bearings
• Needle roller/thrust ball bearings
• Needle roller/cylindrical roller thrust bearings

The relubrication intervals for the radial and thrust components of the bearing must be calculated separately. The shorter of the two intervals should be used.

JOJI universal joint bearings are manufactured using cold-forged or machined ring needle roller bearings with closed-end designs for a variety of applications. They are used in the automotive industry, commercial vehicle drive shafts, and other industries for specialized applications.
JOJI universal joint bearings are available in a variety of sizes and designs, including:

• Maintenance-required or virtually maintenance-free designs
• Open (unsealed) or sealed designs

JOJI not only provides inner rings for needle roller bearings, but also provides needle rollers as separate needle roller bearing assemblies.
In applications where the shaft cannot be hardened and ground, the inner ring is often combined with a needle roller and cage assembly or used with a drawn cup needle roller bearing.
Needle rollers can be used in full complement bearing arrangements for low-speed or oscillatory applications. If the shaft and housing bore serve as raceways, this compact bearing arrangement can provide higher load carrying capacity and be more economical than a bearing with a cage (raceways on the shaft and in the housing).