Timing Belt Pulleys and V-Belt Sheaves: Matching Belt Drive Components Correctly
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
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Fafnir 2MM9117WI super precision angular contact ball bearing, 85 x 130 x 22 mm, 15° contact angle, phenolic outer-land-riding cage, ISO P4S, open, steel balls.
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Here are some other options that might fit your project — cross-referenced equivalents and similar parts we have in stock and ready to ship. Need help choosing? Call 585-295-7880.
Angular Contact Ball Bearing - Straight Bore, 85 mm ID, 130 mm OD, 22 mm Width, Open, 25° Contact Angle, Tandem Ground, ABEC 5 / P5$183.58
Angular Contact Ball Bearing - Straight Bore, 85 mm ID, 130 mm OD, 22 mm Width, Open, 15° Contact Angle, Light Preload.$147.79
Spindle Angular Contact Ball Bearing - 85 mm ID, 130 mm OD, 22 mm Width, Open, 15° Contact Angle, Medium Preload, Universal Single$243.90
Angular Contact Ball Bearing — 85 mm ID, 130 mm OD, 22 mm Width, 15° Contact Angle, Light Preload, Phenolic Cage, ABEC 7/9$243.90| MFR / Brand | Fafnir |
|---|---|
| MPN | 2MM9117WI |
| Model | 2MM9117 WI 7017C |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 85 mm |
| OD | 130 mm |
| Width | 22 mm |
| Material | Bearing Steel |
|---|---|
| Series | 9100 |
| Lubricant | Oil |
| Preload | Light Preload |
| Base Number | 7017 |
| Industry Terms | spindle bearing, super precision, machine tool bearing, phenolic cage, 15 degree angular contact, outer land riding cage, 9100WI series |
| Common Misspellings | 2MM9117 WI, 2MM9117WL, 2M9117WI, 2MM911TWI, Fafner 2MM9117, Angualr contact bearing, phenolyc cage |
| Application Types | Grinding spindles, high-frequency spindle heads, milling and boring spindles, precision rotary tables, machine tool spindles |
| Total Width | 22 mm |
| Overall Width | 22 mm |
| Bore Shaft Size | 85 mm |
| Mpn Variants | 2MM9117WI, 2MM9117 WI, 2MM-9117-WI, 2-MM-9117-WI, 2MM9117WICR, 2MM9117, 7017C, 7017-C |
| Manufacturer Status | Legacy Fafnir designation; obsolescence trail Fafnir to Torrington to Timken. New old stock. |
| Compatible With Replaces | 85 x 130 x 22 mm 15° super precision spindle bearings of matching precision class and cage |
| Precision Class | ISO P4S (ABEC 7/9) |
| Dynamic Load Rating C1 | 66,700 N (15,000 lbf) |
| Additional Attributes | Max shaft fillet radius 1 mm; outer ring to clear radius 1 mm; shaft backing shoulder diameter 94.1 mm; housing backing shoulder diameter 122.1 mm |
| Cage Type | CR - Phenolic Outer Land Riding Cage |
| Dynamic Load Rating | 66,700 N (15,000 lbf); C1 ISO per row 60,500 N (13,600 lbf) |
| Static Load Rating | 58,700 N (13,200 lbf) |
| Precision Rating | ISO P4S (ABEC 7/9) |
| Rolling Elements | Steel Balls |
| Cage Material | Phenolic |
| Limiting Speed | 9,700 rpm (grease), 19,400 rpm (oil) |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Design Units | Metric |
| Bearing Material | Bearing steel |
| Part Number | 2MM9117WI |
| Cross Reference 6 | 2MM-9117-WI |
|---|
Fafnir 2MM9117WI super precision angular contact ball bearing, single row, 9100WI spindle series. Manufacturer Part Number: 2MM9117WI. Bore: 85 mm. Outside Diameter: 130 mm. Bearing Width: 22 mm. Total Width: 22 mm. Number Of Rows: 1. Rows per Set: single. Bore Type: Straight. Closure Type: Open. Seal Type: Open. Rolling Elements: Steel balls. Bearing Material: Bearing steel. Contact Angle: 15°. Precision Class: ISO P4S (ABEC 7/9). Cage Type: CR, phenolic outer land riding. Cage Material: Phenolic. Lubricant: grease or oil. Design Units: Metric. Harmonization Code: 8482.10.50. Country of Origin: United States.
2MM — 15° contact angle in the Fafnir super precision spindle range.
9100WI — spindle series, mapping to the ISO 70xx light section, so the 9117 is a 7017 envelope at 85 x 130 x 22 mm.
WI — low shoulder on both rings.
CR — phenolic outer land riding cage.
Dynamic Radial Load Rating – 1M Revs (C1): 66,700 N (15,000 lbf). C1 ISO Dynamic Radial Rating, per row: 60,500 N (13,600 lbf). Static Radial Load Rating (C0): 58,700 N (13,200 lbf). Limiting Speed, grease: 9,700 rpm. Limiting Speed, oil: 19,400 rpm. These are single-bearing figures.
Unit Quantity: 1 Pc. Rows per Set: single. The designation is the plain 2MM9117WI base.
Max Shaft Fillet Radius: 1 mm. Outer Ring To Clear Radius: 1 mm. Shaft Backing Shoulder Diameter: 94.1 mm. Housing Backing Shoulder Diameter: 122.1 mm.
Base Number: 7017. MPN Variants: 2MM9117WI, 2MM9117 WI, 2MM-9117-WI, 2-MM-9117-WI, 2MM9117WICR, 2MM9117, 7017C, 7017-C. Same-envelope 15° super precision equivalents are written SKF 7017 CD/P4A, FAG B7017-C-T-P4S and NSK 7017CTRP4. The line passed from Fafnir to Torrington to Timken, and Timken lists the 2MM9117WI CR family today.
$137.64
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$137.64
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Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
Tapered, cylindrical, and spherical roller bearings all solve the same basic problem, carrying more load
If you pulled a bearing off general industrial equipment at random, there’s a good chance
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