RHP6024TBP4Precision Deep Groove Ball Bearing – Straight Bore, 120 mm ID, 180 mm OD, 28 mm Width, Open Both Faces, ABEC 7, CN Internal Clearance, Phenolic Cage

Product Description

What this part is: RHP 6024TBP4 precision deep groove ball bearing, 120 mm bore, 180 mm outside diameter, 28 mm width, open on both faces. A deep groove bearing runs its balls in a groove cut to roughly a third of the ball diameter in each ring, which is what lets a single row carry radial load together with thrust in either direction. Decoding the designation: 6024 is the ISO 60 light series with a bore code of 24, so the bore is 24 × 5 mm = 120 mm. T denotes a fabric-base laminate phenolic cage. P4 is the precision grade, and the second carton designation 6024-T-EP7 states the same grade in RHP’s alternative scheme — EP7 and P4 both mean ABEC 7. No clearance suffix appears, so radial internal clearance is the normal CN class. What these specs mean in practice: ABEC 7 on a deep groove bearing is well above the general-purpose ABEC 1 grade, tightening bore, outside diameter and running accuracy tolerances. Combined with the phenolic cage, that puts this execution on high-speed and precision positions — spindle support, precision drives, instrument and test rigs — rather than general machinery, where an ordinary 6024 would serve. The phenolic cage is light and runs quietly and forgivingly on thin oil films, and it is inner-ring guided so the cage locates on the inner land rather than floating on the balls. Basic dynamic capacity is 85 kN and basic static capacity 80 kN, with a limiting speed of 9,400 rpm. Clearance and setting: CN is the normal radial internal clearance class, measured before mounting. Interference on the shaft or in the housing reduces it, as does thermal growth of the inner ring in service, so the mounted clearance ends up smaller than the catalogue figure. Quantity and configuration: One bearing, 28 mm wide, straight bore, open on both faces, no snap ring groove, supplied with a preservative coating. Interchange guidance: The 120 × 180 × 28 mm envelope is the ISO 6024 size, shared with SKF 6024, FAG 6024, NSK 6024 and Timken 6024 in their general-purpose executions. Precision grade and cage material are what separate this one: SKF 6024/P4 and NSK 6024TCG12P4 are the closest matches. A standard-grade 6024 or 6024-2RS fits the same space but is a related size on precision, because the ABEC 1 tolerances and the different cage change both the running accuracy and the speed rating.