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Replacing an NTN deep groove ball bearing starts with the complete ring inscription or equipment documentation. Deep raceways guide the balls, but that shared geometry does not make all variants equivalent. Record bearing identification separately from service conditions before choosing the reference to submit for review.
See all NTN bearings references →NTN guide →Deep groove ball bearings from all brands →NTN tapered roller bearings →NTN angular contact bearings →
This line includes 68/500, 68/530, 6008ZZ and 6009ZZ. Slashes and letters belong to the code. Do not omit an ending just because the diameter is recorded, or interpret it as a technical feature without confirmed documentation for that reference.
For unclear markings, compare the previous box, spare-parts list or drawing. Report disagreements between sources rather than completing a number because it resembles a familiar product.
In a motor or transmission assembly, each support relates to the shaft, housing and nearby components. Describe the bearing position and the assembly’s function. Equipment type alone does not establish that every same-sized deep groove bearing is suitable.
Record retention and lubrication arrangements. Photographs before dismantling preserve details about covers, spacers and other parts that may conceal the inscription. Report noise, heating or visible marks as maintenance observations without assigning an unverified cause.
Send MR the complete NTN designation, quantity and machine position. Separate references by position when several supports are involved. Dimensions can assist identification, but state what was measured and which document was used for comparison. They do not replace confirmation of the required variant.
Keep every designation block, even when its meaning has not been confirmed.
Matching dimensions do not prove equivalent construction or service suitability. Review complete references.
A clear marking photograph, labelled measurements and the equipment spare-parts record provide a starting point.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
The deep groove ball bearing is the most widespread type of bearing: two rings, a cage and a row of balls that support radial and axial loads in both directions. It is used in electric motors, pumps, fans, gearboxes and machine tools. At MR Accesorios Industriales we sell the NTN line, with metric sizes and light, medium and extra-light section series for different speed and load requirements.
NTN deep groove ball bearings with the ZZ suffix are single-row bearings that carry two metal shields, one on each side. They support moderate radial and axial loads in both directions and are the most widespread option when a simple, low-maintenance bearing suitable for high speeds is sought. They are used in electric motors, pumps, fans, gearboxes and transmission equipment in general.
The NTN EC series deep groove ball bearing is a precision component for supporting radial and axial loads in rotating equipment. Its single-row ball design and deep raceways allow it to run at high speeds with low maintenance. It is used in electric motors, pumps, fans and industrial drives. MR Accesorios Industriales sells this line with ZZ sealing for dusty or humid environments.
Just the manufacturer part number is enough: we will quote it and provide dimensions and equivalents via WhatsApp or email.
