NN4938K Cylindrical Roller Bearing
Frequently Asked Questions / FAQ
Is RAYSDE NN4938K available, and what is the MOQ?
NN4938K is supplied directly from the RAYSDE factory, 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 NN4938K?
Key parameters of the NN4938K Cylindrical Roller Bearing: bore d=190mm, outer D=260mm, width B=69mm, dynamic load Cr=413kN, static load Cor=898kN. For the full dimension table, load and speed data, and CAD drawings, please contact RAYSDE.
Which industries and equipment use the NN4938K Cylindrical Roller Bearing?
It is widely used across motors, gearboxes, machine tools in various rotating and power-transmission applications, making it a versatile bearing choice.
What are the advantages of RAYSDE NN4938K versus imported brands?
As a factory-direct source, RAYSDE offers NN4938K at competitive ex-works pricing with shorter lead times than comparable imported brands, plus non-standard customization and OEM support. Certified to ISO 9001:2015, with 3.1 material certificates available.
Can you provide engineering drawings and material certificates for NN4938K?
Yes—CAD/DXF/PDF high-precision drawings and 3.1 material certificates (GCr15 bearing steel) for NN4938K are available on request from RAYSDE.