In bearing procurement, confusion between 61908 and 6908 is extremely common. A customer sends a replacement request for 6908. The supplier quotes 61908. The maintenance team checks both numbers and wonders: are these different bearings? Will they fit?
We deal with this question almost weekly at Welink. So here's a straight answer based on years of supplying these bearings to industries ranging from medical equipment to industrial automation.
61908 and 6908 Are the Same Bearing
The 61908 bearing and the 6908 bearing are identical in every physical aspect. Same dimensions. Same load ratings. Same applications.
The only difference? Naming convention.
● 61908 follows the current ISO dimension series. This is the standard used by all major manufacturers toda...
