NU324EM/C3YA Cylindrical Roller Bearing
Selection Guide
Cylindrical roller bearings use line contact, giving far higher radial stiffness and radial load capacity than a deep groove ball bearing of the same size, but they carry no (or only limited) axial load — axial location must be handled separately. Always confirm the design variant: NU / N have no ribs on one ring (floating end, allowing axial displacement), NJ has a single rib and accepts axial load in one direction, NUP adds a loose rib flange for two-way location, NN / NNU are double-row for maximum stiffness. E denotes a reinforced, higher-capacity design.
Frequently Asked Questions / FAQ
Is RAYSDE NU324EM/C3YA available, and what is the MOQ?
NU324EM/C3YA is supplied by RAYSDE through ISO 9001:2015 certified partner factories, with both stock and build-to-order options. Standard-part MOQ is tiered by bore: ≤50mm:500 pcs / 51–100mm:100 pcs / 101–300mm:20 pcs / >300mm:4 pcs; non-standard items are quoted per drawing. Send an inquiry for formal pricing and lead time.
What are the technical specifications of RAYSDE NU324EM/C3YA?
Key parameters of the NU324EM/C3YA Cylindrical Roller Bearing: bore d=120mm, outer D=260mm, width B=55mm. For the full dimension table, load and speed data, and CAD drawings, please contact RAYSDE.
Which industries and equipment use the NU324EM/C3YA Cylindrical Roller Bearing?
Found in traction motors and machine tool spindles, rolling mill work and backup rolls, gearboxes and reducers, vibrating machinery, compressors and large pumps — anywhere high radial stiffness and high speed are required.
What are the advantages of RAYSDE NU324EM/C3YA versus imported brands?
As a supplier partnered with ISO 9001:2015 certified factories, RAYSDE offers NU324EM/C3YA at competitive ex-works pricing with shorter lead times than comparable imported brands, plus non-standard customization and OEM support. Partner factories certified to ISO 9001:2015, with 3.1 material certificates available.
Can you provide engineering drawings and material certificates for NU324EM/C3YA?
Yes—CAD/DXF/PDF high-precision drawings and 3.1 material certificates (GCr15 bearing steel) for NU324EM/C3YA are available on request from RAYSDE.
NU324EM-C3YA How do I choose between NU, NJ, NUP and N cylindrical roller bearings?
N types have two ribs on the inner ring and none on the outer; NU types have two ribs on the outer ring and none on the inner. Both carry radial load only and allow axial shaft displacement, so they serve as the floating end. NJ has two outer ribs and one inner rib and carries axial load in a single direction — used as a semi-locating bearing. NUP adds a loose flange to NJ and locates the shaft in both directions, serving as the fixed end. Describe your axial location scheme and we will confirm the type.
NU324EM-C3YA Can a cylindrical roller bearing carry axial load?
Standard NU and N designs carry no axial load at all — radial load only. NJ accepts limited axial load in one direction, while NUP (or an NJ plus HJ angle ring) provides two-way axial location. For heavier axial loads, choose a tapered roller bearing or angular contact ball bearing instead, or combine a cylindrical roller bearing for radial load with a separate thrust bearing for axial load.