RHP7019CTDULP4Angular Contact Ball Bearing 95x145x24 mm 15° Light Preload Duplex Ground ABEC 7, Half Pair

Product Description

What this part is

RHP 7019-C-T-DUL-P4, one bearing from a light-preload duplex pair. Boundary dimensions 95 mm bore × 145 mm outside diameter × 24 mm width.

Decoding the designation

70 – single-row angular contact ball bearing, ISO dimension series 10
19 – bore code, 19 × 5 = 95 mm bore
C – 15° contact angle in the RHP scheme
T – phenolic cage
DU – duplex grinding, ring faces ground for pair mounting
L – light preload
P4 – ABEC 7 precision class, RHP equivalent EP7
-1/2PR – half pair, one bearing

What these specs mean in practice

The 15° contact angle favours speed and radial stiffness over thrust capacity, which is the usual machine-tool spindle choice. Duplex grinding means the ring faces carry the matched offset that produces light preload when two of these are clamped together, so a single bearing takes thrust in one direction and a pair locates the shaft in both. Light preload keeps friction and heat generation down while removing axial play. ABEC 7 controls bore, outside diameter and running accuracy to super-precision limits.

Published specifications

Bore: 95 mm (3.7402 in)
Outside diameter: 145 mm (5.7087 in)
Width: 24 mm (0.9449 in)
Contact angle: 15°
Rows: 1
Preload: light (L), duplex ground
Precision class: P4 (ABEC 7), RHP equivalent EP7
Cage: phenolic
Closure: open

Quantity and configuration

1 Pc. Half pair — a single bearing out of a DUL set.

Fitting notes

Thrust runs from the high shoulder of the inner ring to the high shoulder of the outer, so the ring faces set the load direction on assembly. Pairing this bearing with a second DUL-ground 7019-C-T of the same manufacture restores the designed light preload through the matched ring-face offset, developed by clamping the inner rings solid against the shaft nut and the outer rings against the housing shoulder.

Interchange guidance

Same-spec 15° light-preload duplex-ground equivalents in other schemes: RHP B-series B7019X2TADULEP7, Fafnir 2MM9119WI-CR-DUL, NSK 7019CTRDULP4, FAG B7019-C-T-P4S-UL. Medium and heavy preload forms, the 25° 7019-E form, and single universally ground SU bearings are related sizes in the same 95 x 145 x 24 mm envelope rather than interchanges.