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Fafnir2MM218WICRDULAngular Contact Ball Bearing – 90 mm ID, 160 mm OD, 30 mm Width, 15° Contact Angle, Light Preload, Phenolic Cage, ABEC 7/9

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

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Super-precision angular contact ball bearing, 90 x 160 x 30 mm, 15° contact angle, light preload, phenolic outer-land-riding cage, ABEC 7/9.

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$267.73

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Specifications

Key Specifications

MFR / BrandFafnir
MPN2MM218WICRDUL
GTIN087796071094
Model7218 C T DUL P4 / 2 MM 218 WI CR DUL / 7218C / 218HDL
Bearing TypeAngular Contact Ball Bearing, Open
ID90 mm
OD160 mm
Width30 mm

Technical Specifications

MaterialBearing Steel
Series7200
LubricantOil
PreloadLight
Base Number2MM218WI
Total Width30 mm
Bore Shaft Size90 mm
Mpn Variants2MM218WI-SUL, 2MM218WISUL, 2MM218WICRSUL, 2MM-218-WI-CR-SUL, 2MM-218-WI-CR-DUL
Arrangement ConfigurationSingle universally ground
Precision ClassABEC 7/9 (ISO P4S)
Dynamic Load Rating C1129,900 N
Additional AttributesBall type: steel. Shaft backing shoulder diameter: 102.7 mm. Housing backing shoulder diameter: 148 mm. Maximum shaft fillet radius: 2 mm. Outer ring to-clear radius: 2 mm. ISO dynamic radial rating per row: 118,000 N.
Cage TypeCR – Phenolic Outer Land Riding Cage
Dynamic Load Rating129,900 N
Static Load Rating97,900 N
Precision RatingISO P4S (ABEC 7/9)
Rolling ElementsBall
Cage MaterialPhenolic
Limiting Speed8,900 rpm grease / 17,800 rpm oil
Number Of Rows1
Bore TypeStraight
Harmonization Code8482.10.50.28
Contact Angle15°
Mounting ArrangementUniversally ground single – stackable back-to-back, face-to-face or tandem
Bearing MaterialChrome steel

Cross-References

Cross Reference 17218C-T-P4S-SUL
Seller Part Number: R2#IUKGXN

Product Description

What this part is

Fafnir 2MM218WI-SUL super-precision angular contact ball bearing, built by Timken. Bore: 90 mm. Outside Diameter: 160 mm. Bearing Width: 30 mm. Total Width: 30 mm. Contact Angle: 15°. Precision Class: ISO P4S (ABEC 7/9). Preload: Light. Cage Material: Phenolic. Cage Type: outer-ring land riding, machined. Rolling Elements: steel balls. Closure Type: Open. Number of Rows: 1. Series: 200. Bore Type: Straight.

Decoding the designation

2MM — Fafnir super-precision spindle execution at a 15° contact angle, ground to ISO P4S.

218 — the 200WI size series, ISO 7218 envelope, 90 x 160 x 30 mm.

WI — low shoulder on both rings.

CR — phenolic outer land riding cage.

SUL — single universally ground bearing, light preload. Faces are ground so any two pieces of the same number stack to the rated preload in any arrangement.

What these specs mean in practice

Dynamic Radial Load Rating (C1): 129,900 N. Static Radial Load Rating (C0): 97,900 N. ISO dynamic radial rating per row: 118,000 N. Limiting Speed: 8,900 rpm on grease, 17,800 rpm on oil. Lubricant: grease or oil.

The 72 dimension series carries a heavier cross-section than the 70 series at the same bore, which raises load capacity. A 15° contact angle favours speed and radial stiffness over thrust capacity. Light preload gives the highest running speed and the lowest heat generation of the three grades. The phenolic cage is light, tolerates high surface speed and holds oil in its fabric base.

Quantity and configuration

Unit Quantity: 1 Pc. Single universally ground bearing, mountable alone or stacked with further pieces of the same number back-to-back, face-to-face or in tandem.

Mounting data

Shaft Backing Shoulder Diameter: 102.7 mm. Housing Backing Shoulder Diameter: 148 mm. Maximum Shaft Fillet Radius: 2 mm. Outer Ring To-Clear Radius: 2 mm.

Interchange guidance

Timken world part number: 7218C-T-P4S-SUL. Manufacturing part number: 2MM218WI SUL. The same bearing is written 2MM218WISUL, 2MM-218-WI-CR-SUL and 2MM218WICRSUL.

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