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FafnirAngular Contact Ball Bearing – Straight Bore, 90 mm ID, 160 mm OD, 30 mm Width, Open, ABEC 3 / P6, Low-Shoulder WI Rings, Phenolic Cage.

Condition: New – Open box
Condition Note: Made In USA, New Old Stock

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Fafnir 218WI angular contact ball bearing, 90 x 160 x 30 mm, straight bore, open, ABEC 3 / P6 precision, low-shoulder WI rings, phenolic cage.

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$129.15

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Specifications

Key Specifications

MFR / BrandFafnir
Model7218 P6 / M 218 WI
Bearing TypeAngular Contact Ball Bearing, Open
ID90 mm
OD160 mm
Width30 mm

Technical Specifications

MaterialBearing Steel
Series218
Base Number218WI
Industry TermsAngular contact ball bearing, machine tool bearing, P6 precision, low shoulder, 7218, 218WI
Common MisspellingsFafner, Faffnir, M218W1, M 218 WL, 7218 vs 71918
Bore Shaft Size90 mm
Mpn VariantsM218WI, M-218-WI, M 218 WI, 218WI, 7218 P6
Rolling ElementsBall
Number Of Rows1
Bore TypeStraight
Snap Ring IncludedNo
Harmonization Code8482.10.50.68
Part NumberM218WI
Seller Part Number: G3#GK02IN

Product Description

What this part is

Fafnir M218WI angular contact ball bearing, 200WI series. Brand: Fafnir (Timken). Part Number: M218WI. Bore: 90 mm. Outside Diameter: 160 mm. Overall Width: 30 mm. Design Units: Metric. Number Of Rows: 1. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Bearing Material: Chrome bearing steel. Item Weight: 4.84 lbs.

Decoding the designation

Precision Class: P6. Precision Rating: ABEC 3. The carton designation carries the ISO cross-reference 7218 alongside the P6 class, so this is the P6-tolerance execution of the 218WI rather than the P4S super-precision execution. WI marks a low shoulder on both rings, which is what lets the bearing be assembled with a high ball complement. Cage Material: Phenolic. Series: 200WI, carrying the 7218 envelope of 90 x 160 x 30 mm.

What these specs mean in practice

ABEC 3 / P6 holds running accuracy and bore and outside-diameter tolerance closer than a standard-class bearing, which shows up as lower shaft runout and quieter running. The 90 mm bore inside a 160 mm outside diameter is the medium 72-series section, so the bearing carries a heavier load for its bore than a 70- or 719-series part of the same shaft size. The phenolic cage runs light and holds lubricant against the ball pockets.

Quantity and configuration

Unit Quantity: 1 Pc.

Interchange guidance

Cross-Reference: Timken 7218, on the 90 x 160 x 30 mm envelope. Harmonization Code: 8482.10.50.68.

Designation variants

MPN Variants: M218WI, M-218-WI, M 218 WI, 218WI, 7218 P6.

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