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FafnirSuper-Precision Angular Contact Ball Bearing – Straight Bore, 80 mm ID, 125 mm OD, 22 mm Width, Open, 25° Contact Angle, Phenolic Cage.

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

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Super-precision angular contact ball bearing, 80 x 125 x 22 mm, 25° contact angle, phenolic outer-land-riding cage, ABEC 7/9 for spindle service.

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$145.32

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Specifications

Key Specifications

MFR / BrandFafnir
Model3MM 9116 WI 7016A ABEC7
Bearing TypeAngular Contact Ball Bearing, Open
ID80 mm
OD125 mm
Width22 mm

Technical Specifications

MaterialChrome Steel
Series9100
Total Width22 mm
Base Number3MM9116WI
Industry TermsSpindle bearing, machine tool bearing, super precision angular contact, 7016, 3MM9116WI
Common MisspellingsFafner, Faffnir, 3MM9116W1, 3MM 9116 WL, 7016 vs 71916, 9116 vs 9316
Bore Shaft Size80 mm
Mpn Variants3MM9116WI, 3MM-9116-WI, 3MM 9116 WI, 3MM9116WICR, 7016E-T-P4S, 7016A, 7016A5, 7016ACD
Rolling ElementsSteel ball
Number Of Rows1
Bore TypeStraight
Snap Ring IncludedNo
Harmonization Code8482.10.50
Part Number3MM9116WI
Seller Part Number: AC3B2#7U0FNR

Product Description

What this part is

Fafnir 3MM9116WI super-precision angular contact ball bearing, 9100 series. Brand: Fafnir (Timken). Part Number: 3MM9116WI. Bore: 80 mm. Outside Diameter: 125 mm. Overall Width: 22 mm. Total Width: 22 mm. Design Units: Metric. Number Of Rows: 1. Rolling Elements: Steel ball. Bore Type: Straight. Closure Type: Open. Bearing Material: Chrome bearing steel. Item Weight: 3.90 lbs.

Decoding the designation

Contact Angle: 25°. Precision Class: P4S. Precision Rating: ABEC 7/9. Cage Material: Phenolic. Cage Type: CR – phenolic outer land riding. Series: 9100, Fafnir’s designation for the ISO 70xx series — a 9116 carries the 7016 envelope. Timken World Part Number: 7016E-T-P4S.

Load ratings and speeds

Dynamic Radial Load Rating (C1), per bearing: 61,400 N (13,800 lbf). Dynamic Radial Load Rating (C1 ISO, per row): 56,000 N (12,500 lbf). Static Radial Load Rating (C0), per bearing: 52,500 N (11,800 lbf). Limiting Speed, grease: 10,200 rpm. Limiting Speed, oil: 18,600 rpm.

What these specs mean in practice

A 25° contact angle carries more thrust load and holds the shaft more stiffly along its axis than a 15° bearing on the same envelope. The 70-series section fits an 80 mm shaft inside a 125 mm housing bore. The phenolic cage rides on the outer ring land, staying centred at speed and holding lubricant against the ball pockets. Oil feed lifts the speed ceiling from 10,200 to 18,600 rpm.

Mounting data

Shaft Backing Shoulder Diameter: 88.5 mm (3.490 in). Housing Backing Shoulder Diameter: 116.5 mm (4.590 in). Maximum Shaft Fillet Radius: 1 mm (0.039 in). Outer Ring “To Clear” Radius: 1 mm (0.039 in).

Quantity and configuration

Unit Quantity: 1 Pc. Mounting Arrangement: Universal.

Interchange guidance

Cross-References: SKF 7016 ACD/P4A, FAG B7016-E-T-P4S, NSK 7016A5, Timken 7016E. Each shares the 80 x 125 x 22 mm envelope and the 25° contact angle. Harmonization Code: 8482.10.50.

Designation variants

MPN Variants: 3MM9116WI, 3MM-9116-WI, 3MM 9116 WI, 3MM9116WICR, 7016E-T-P4S, 7016A, 7016A5, 7016ACD.

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