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FafnirSuper Precision Angular Contact Ball Bearing – 85 mm ID, 130 mm OD, 22 mm Width, Straight Bore, Open, 25 Degree, Light Preload, Phenolic Cage

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

Availability:

1 in stock

Super precision angular contact ball bearing, 85 x 130 x 22 mm, 25° contact angle, light preload, ABEC 7/9, open, phenolic outer-land-riding cage.

List Price

$243.90

1 in stock

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Specifications

Key Specifications

MFR / BrandFafnir
Model3MM 9117 WI SUL
Bearing TypeAngular Contact Ball Bearing, Open
ID85 mm
OD130 mm
Width22 mm

Technical Specifications

Base Number7017
Industry TermsSpindle bearing, machine tool bearing, super precision angular contact, precision ball bearing
Common MisspellingsFafner, Faffnir, Fafnier, 3MM9117W1, 3MM911 7WI
Application TypesMachine tool spindles, grinding spindles, precision gearboxes, high-speed rotating assemblies
Bore Shaft Size85 mm (3.3465 in)
Mpn Variants3MM9117WI-SUL, 3MM-9117-WI-SUL, 3MM9117WISUL, 3MM9117WI-CR-SUL, 3MM 9117 WI SUL
MaterialChrome bearing steel
SeriesFafnir 9100WI (maps to ISO 70 light series)
Rolling ElementsSteel balls, single row
Number Of Rows1
Bore TypeStraight
LubricantGrease or oil
Harmonization Code8482.10.50
Part Number3MM9117WI-SUL

Cross-References

Cross Reference 1FAG B7017-E-T-P4S-UL - 25 deg, universal, light preload
Seller Part Number: B-P8#VTXKRV

Product Description

What this part is

Fafnir 3MM9117WI-SUL super precision single-row angular contact ball bearing. Bore: 85 mm (3.3465 in). Outside Diameter: 130 mm (5.1181 in). Overall Width: 22 mm (0.8661 in). ISO 7017 envelope, open on both faces, with a phenolic outer-land-riding cage.

Decoding the designation

Contact Angle: 25°. Precision Class: P4S (ABEC 7/9). Series: Fafnir 9100WI, the ISO 70 light dimension family, bore code 17 giving an 85 mm bore. Cage Material: Phenolic. Cage Type: Outer-land-riding, from the CR carton marking. Arrangement: single, universally ground. Preload: Light. Searchable forms of the number: 3MM9117WI-SUL, 3MM-9117-WI-SUL, 3MM9117WISUL, 3MM9117WI-CR-SUL, 3MM 9117 WI SUL.

What these specs mean in practice

A 25° contact angle carries more thrust and less speed than a 15° bearing of the same envelope, which makes it the usual choice where axial stiffness governs. The 70 light section keeps the outside diameter modest for the bore, which suits a compact spindle nose. Light preload holds running torque and heat generation down. A single row takes thrust in one direction.

Load ratings

Dynamic Load Rating: 63.0 kN (63,000 N / 14,000 lbf). Static Load Rating: 48.0 kN (48,000 N / 10,800 lbf). Item Weight: 2.13 lb (0.996 kg). Maximum shaft or housing fillet radius cleared by the bearing corner: 1.0 mm (0.039 in).

Materials and construction

Bearing Material: chrome bearing steel. Rolling Elements: steel balls, single row. Number of Rows: 1. Bore Type: Straight. Closure Type: Open both faces. Internal Clearance: N/A — the SUL execution is preload-set. Lubricant: grease or oil.

Quantity and configuration

Unit Quantity: 1 Pc. Single bearing, universally ground, so it mounts alone or stacks back-to-back, face-to-face or in tandem, with preload established by the ground faces.

Interchange guidance

ISO designation: 7017E-T-P4S at 25°. Cross-Reference 1: FAG B7017-E-T-P4S-UL (25°, universal, light preload). A 2MM9117WI shares the 85 x 130 x 22 mm envelope at a 15° contact angle and is a related part, as are the medium and heavy preload variants.

Applications

Machine tool spindles, grinding spindles, precision gearboxes and high-speed rotating assemblies. Harmonization Code: 8482.10.50. Country of Origin: United States.

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