Product: 2 pieces — needle bearings without inner ring, model NK100/26 Key benefits - Space-saving radial support: needle roller design provides high radial load capacity with a low sectional height, ideal where radial clearance is limited. - Direct shaft integration: no inner ring means the bearing uses the shaft as the race, reducing part count and simplifying assemblies when the shaft surface is prepared accordingly. - Precise, low-friction operation: needle rollers deliver stable guidance and reduced friction for rotating components, improving efficiency and component life when properly installed and lubricated. Important attributes - Model: NK100/26 - Quantity: 2 pieces - Inner diameter (bore/shaft size): 100 mm — intended to run on a hardened, ground shaft of 100 mm diameter or a suitable inner race surface. - Outer diameter (housing bore): 120 mm — matches housings or adapters designed for 120 mm OD. - Thickness (width): 26 mm - Function: radial needle roller bearing without inner ring; designed to carry radial loads and provide compact support for rotating shafts. Compatibility and fit notes - Designed to be used where the shaft itself serves as the inner race; shaft hardness and surface finish should meet bearing installation requirements for long service life. - Outer diameter 120 mm allows press-fit or retention in housings sized to accept that OD. Verify housing tolerances and fit class before installation. - Requires appropriate lubrication and sealing to prevent contamination and ensure expected performance. Performance considerations - Best suited for applications requiring high radial load capacity in a limited radial envelope. - Performance depends on correct shaft preparation, proper housing fit, correct lubrication, and contamination control. - Using two pieces (as supplied) supports replacements, paired assemblies, or spares for maintenance. Typical use scenarios - Industrial gearboxes: compact radial support for shafts in gear trains where space is constrained. - Rotating equipment and pumps: support of pump shafts or motor-driven shafts that require a low-profile bearing with strong radial load capability. - Agricultural or construction machinery: bearings for rotating linkages or shafts where direct shaft race design reduces parts and simplifies assembly. Installation and maintenance tips - Ensure the 100 mm shaft is hardened/finished appropriately for use as the bearing race or use a compatible sleeve or inner race where required. - Press-fit or secure the bearing outer diameter into a housing matched to 120 mm OD; follow recommended interference fits for your application. - Provide proper lubrication (grease or oil as appropriate) and use seals or shields if contamination is a concern. - Inspect shaft and housing surfaces for wear or damage before assembly to prevent premature failure. Order details - Model NK100/26, needle bearings without inner ring, 2 pieces, ID 100 mm, OD 120 mm, thickness 26 mm.