RHP7006CTDULP4Super-Precision Angular Contact Ball Bearing – 30 mm ID, 55 mm OD, 13 mm Width, 15 Degree, Phenolic Cage, Light Preload

Product Description

What this part is: RHP 7006CTDULP4 super-precision angular contact ball bearing, 30 mm bore, 55 mm outside diameter, 13 mm width. Single row, open on both faces, phenolic cage, universally ground for duplex mounting at light preload. Decoding the designation: In the RHP scheme the 7006 gives the ISO 70 light series in the 06 bore code, so 30 mm bore. The C is the contact angle letter and sets 15°. The T denotes a fabric-base laminate phenolic cage. DUL is a duplex universal set at light preload, and P4 is the precision grade, equivalent to ABEC 7. The -1/2PR suffix on the carton denotes a single bearing supplied from a universal pair. What these specs mean in practice: A 15° contact angle favours speed and radial stiffness over thrust capacity; a 25° bearing of the same envelope carries more axial load and runs slower. The phenolic cage is light and self-lubricating, which is what allows the high limiting speed in this class. Light preload gives running accuracy and stiffness with the least frictional heat of the three preload grades. Quantity and configuration: One bearing. Universal grinding means any two of these can be assembled back-to-back, face-to-face or in tandem and will take up the specified light preload without shims. Fitting notes: Preloaded universal bearings are set by grinding, so the running internal clearance is defined by the mounting rather than by a clearance class. Oil lubrication suits the phenolic cage and the speed rating. Interchange guidance: Direct same-spec equivalents at 15°, phenolic cage, light preload and universal grinding are the FAG B7006-C-T-P4S-UL, the NSK 7006CTRDULP4Y and the Fafnir 2MM9106WI CR DUL. The SKF 7006 CD/P4ADGA is the same envelope and angle in the SKF cage scheme.