RHP7201CTDULP4Angular Contact Ball Bearing – 12 mm ID, 32 mm OD, 10 mm Width, 15 Degree Contact Angle, Phenolic Cage, Light Preload, ABEC 7 Super Precision

Product Description

What this part is

RHP 7201CTSULP4 single-row super-precision angular contact ball bearing, universally ground for matched mounting. Series: ISO 02 (72xx). Bore: 12 mm. Outside Diameter: 32 mm. Width: 10 mm. Contact Angle: 15°. Cage Material: Laminated phenolic. Preload: Light. Precision Class: P4, ABEC 7. Rolling Elements: Ball.

Decoding the designation

7201 — RHP’s number for the ISO 7201 size, 12 x 32 x 10 mm, dimension series 02.

C — 15° contact angle.

T — laminated phenolic cage.

SU — universal face control. The faces are ground so that any two bearings from the range mount together as a pair in any orientation.

L — light preload class.

P4 — RHP precision class P4, equivalent to BS292 EP7 and ABEC 7.

B7201X2TAULEP7 — the same bearing in RHP’s B-series scheme. X2 is the 15° contact angle and EP7 is precision class P4.

What these specs mean in practice

Dynamic Load Rating: 7,900 N (7.9 kN). Static Load Rating: 3,850 N (3.85 kN). Limiting Speed: 76,100 r/min on oil-air, 47,000 r/min on grease. Contact Angle: 15°. Effective load centre a: 7.9 mm. Chamfer r min: 0.6 mm. Chamfer r1 min: 0.3 mm. Mass: 0.036 kg. Internal volume: 1.7 cm³.

The 02 series is the heavier of the two common angular contact sections, so a 12 mm bore arrives in a 32 mm outside diameter with the thrust capacity that section buys. A 15° contact angle keeps the load path close to radial and is the fast end of the range, which is why the oil-air figure reaches 76,100 r/min at this size. Grease lubrication costs roughly a third of that. ABEC 7 sets the running accuracy for a grinding or milling spindle.

Mounting data

Shaft abutment diameter d1: 17 mm minimum. Housing abutment diameter D1: 27 mm maximum. Second housing abutment diameter D2: 29.5 mm maximum. PCD of lubrication jets dT: 19.6 mm.

Quantity and configuration

Unit Quantity: 1 Pc. One universally ground bearing, mountable singly or as one half of a set with a second bearing of the same designation.

Interchange guidance

Equivalent 15° executions on the same envelope: NSK 7201C, SKF 7201 CD, FAG B7201-C. Searchable variants of the designation: 7201CTSULP4, 7201-C-T-SUL-P4, 7201 C T SUL P4, 7201C, B7201X2TAULEP7. A 7201 in a 25° execution shares the envelope and is a related size rather than a substitution, because the thrust capacity, the load centre and the speed rating all change with the angle.