RHP7319CTSULP4Super-Precision Angular Contact Ball Bearing – Straight Bore, 95 mm ID, 200 mm OD, 45 mm Width, Open, 15° Contact Angle, Light Preload, Single Universal, ABEC 7

Product Description

What this part is

RHP 7319CTSULP4 super-precision angular contact ball bearing. Bore 95 mm, outside diameter 200 mm, width 45 mm. Straight bore, open on both faces, single row of balls, machined phenolic cage riding on the outer ring land.

Decoding the designation

73 is the ISO heavy angular contact dimension series and 19 is the bore code, giving a 95 mm bore. C denotes a 15° contact angle in the RHP scheme. T is a fabric-base laminate phenolic cage. SU marks a single universally ground bearing and L sets light preload. P4 is ISO Class 4, equivalent to ABEC 7. The carton also carries 2MM319WICRSUL and 7319X2TUEP7, whose 2MM and X2 codes confirm the 15° angle, whose CR code confirms the outer-land-riding phenolic cage, and whose EP7 confirms the ABEC 7 class.

What these specs mean in practice

A 15° contact angle favours speed and radial stiffness over thrust capacity, which suits a high-rpm spindle. The heavy 73 series puts a large ball complement in a thick section, so this size carries substantial radial and one-direction axial load for its speed class. A phenolic cage guided on the outer ring land runs cool and quiet with oil lubrication. Light preload keeps heat generation and torque low while still removing internal play.

Quantity and configuration

One piece. Universal grinding means any two units of this designation stack directly as a back-to-back, face-to-face or tandem set, with the light preload built into the ground ring faces. A single-row angular contact bearing takes thrust in one direction, so a second bearing opposes it.

Fitting notes

Ring faces are ground flat and square for direct abutment, so preload develops when the shaft nut and housing cap are drawn fully home. Phenolic cages suit oil mist and circulating oil systems.

Interchange guidance

Same 15° equivalents are the SKF 7319 CDGA/P4A and the NSK 7319CTRSULP4. The Fafnir 2MM319WICRSUL is the same bearing under the WI numbering scheme.