RHP7218CTDUMP4Angular Contact Ball Bearing Matched Pair – Straight Bore, 90 mm ID, 160 mm OD, 30 mm Width, Open, 15° Contact Angle, Medium Preload

Product Description

What this part is:

RHP 7218CTDUMP4 super precision angular contact ball bearings, supplied as a matched duplex pair. Unit Quantity: 2 Pcs. Series 7200, ISO dimension series 02. Straight bore, open on both faces, ball rolling elements in chrome bearing steel to SAE 52100.

Decoding the designation:

7218 — ISO series 02 angular contact, 90 mm bore.

C — 15° contact angle.

T — laminated phenolic resin cage, machined and outer-ring guided.

DU — paired unit with universal face control.

M — medium preload.

P4 — precision grade equal to RHP EP7 and ABEC 7.

B7218X2TADUMEP7 — the RHP B-series form of the designation. 2MM218WICR-DUM and 218HDM are the Fafnir forms.

Specifications:

Bore Diameter: 90 mm. Outside Diameter: 160 mm. Width: 30 mm each bearing, 60 mm assembled. Contact Angle: 15°. Dynamic Load Rating: 123,000 N per bearing. Static Load Rating: 105,000 N per bearing. Limiting Speed: 7,800 rpm grease; 13,400 rpm oil-air for a single bearing. Limiting Speed as a medium-preload pair (0.60 factor): 4,680 rpm grease; 8,040 rpm oil-air. Precision Class: P4 (EP7 / ABEC 7). Preload: Medium (M), 1,860 N, axial stiffness 187 N/µm. Cage Material: laminated phenolic resin. Cage Type: machined, outer-ring guided. Closure Type: Open. Number Of Rows: 1 per bearing. Item Weight: 2.206 kg per bearing, 4.412 kg (9.73 lb) for the pair. Country of Origin: United Kingdom.

Dimensions and mounting:

Shaft shoulder d1 minimum: 100 mm. Housing shoulder D1 maximum: 150 mm; D2 maximum: 154 mm. Fillet radius r minimum: 2.5 mm; r1 minimum: 1.0 mm. Effective load centre a: 31.7 mm. Internal free volume: 95.1 cm³ per bearing. Lubrication jet pitch circle: 116.7 mm. Arrangement: universal face control, back-to-back, face-to-face or tandem at the same medium preload, set at manufacture.

Compatibility and replacement:

Cross-references at 15° and medium preload: SKF 7218 CD/P4ADGB; NSK 7218CTRDUMP4; Fafnir 2MM218WICR-DUM; FAG B7218-C-T-P4S-DUM (P4S class). Related RHP part: 7218ETDUMP4 (25° contact angle).

Frequently asked questions:

What are the dimensions of the RHP 7218CTDUMP4?

Bore 90 mm, outside diameter 160 mm, width 30 mm per bearing and 60 mm assembled, with a 15° contact angle.

What does DUM mean?

DU is a paired unit with universal face control and M is medium preload, 1,860 N. The set contains 2 bearings.

What are the load ratings of the 7218CTDUMP4?

Dynamic Load Rating 123,000 N and Static Load Rating 105,000 N per bearing.