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RHP7218CTDULP4Super Precision Angular Contact Ball Bearing – 90 mm ID, 160 mm OD, 30 mm Width, Open, 15°, Light Preload, ABEC 7, Matched Pair

Condition: New

Availability:

1 in stock

Super precision angular contact ball bearing pair, 90 x 160 x 30 mm, 15° contact angle, open, phenolic cage, light preload, ABEC 7 tolerance.

List Price

$705.89

1 in stock

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Specifications

Key Specifications

MFR / BrandRHP
MPN7218CTDULP4
Model7218 C T DUL P4 / 2MM218WI CR DUL / 7218C / 218HDL
Bearing TypeAngular Contact Ball Bearing, Open
ID90 mm
OD160 mm
Width30 mm

Technical Specifications

MaterialChrome steel
Series72 (7200)
LubricantOil Preservative
Base Number7218
Industry Termsspindle bearing, super precision angular contact, matched pair, machine tool bearing
Common Misspellings7218 CTDULP4, 7218CTDUL P4, RPH 7218CTDULP4
Bore Shaft Size90 mm (3.5433 in)
Mpn Variants7218CTDULP4, 7218-C-T-DUL-P4, 7218 C T DUL P4, B7218X2TDULEP7, B7218X2T-DUL-EP7, 218HDL, 7218C
Rolling ElementsBall
Number Of Rows1 per bearing
Bore TypeStraight
Snap Ring IncludedWithout Snap Ring
Harmonization Code8482.10.50.28
Part Number7218CTDULP4
Seller Part Number: B-BQ5#QHSFIH

Product Description

What this part is

RHP 7218CTDULP4 super precision angular contact ball bearing. Bore: 90 mm. Outside Diameter: 160 mm. Width: 30 mm per bearing. Series: 72, medium section. Single row of balls per bearing, open on both faces. Rolling Elements: chrome steel balls.

Decoding the designation

Contact Angle: 15°. Cage: machined laminated phenolic, outer-ring guided. Preload: light. Precision Class: P4, equal to ABEC 7 and to RHP class EP7. Configuration: duplex, universally ground. The same bearing is designated 7218-C-T-DUL-P4, B7218X2TDULEP7, 2MM218WI-CR-DUL and 218HDL.

What these specs mean in practice

A 15° contact angle favours speed and radial stiffness over thrust capacity. The 72 medium section carries a higher load than a 70 light-section bearing on the same bore. Dynamic Load Rating: 114 kN. Static Load Rating: 91.5 kN. Light preload gives the coolest running and the highest speed of the three preload grades. P4 tolerance holds bore, outside diameter and running accuracy to super precision limits.

Quantity and configuration

Unit Quantity: 2 Pcs. Universally ground faces allow the pair to be mounted back-to-back, face-to-face or in tandem, and the ground offsets set the preload when the rings are clamped. Total width of the pair: 60 mm.

Fitting notes

Preloaded sets are supplied without internal clearance, so Internal Clearance is N/A. Clamping is against the ground faces of both rings. Phenolic cages are rated to 120 °C.

Interchange guidance

Same-spec equivalents at 15°, P4, light preload: Fafnir 2MM218WI-CR-DUL, NSK 7218CTRDULP4, FAG B7218C.T.P4S.UL. Related size: SKF 7218 CD/P4ADGA, same envelope and angle, SKF light-preload universal matching. Related size: 7218A5 at 25°, same envelope, different thrust and speed capability.

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