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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Single 15° super-precision angular contact ball bearing, 80 mm bore x 140 mm OD x 26 mm wide, ABEC 7 with a phenolic cage and light preload, universally ground so it can be stacked into a matched set — for high-speed machine tool spindles. One bearing.
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$107.07
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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.
Super Precision Angular Contact Ball Bearing 80x140x26mm 15 Degree P4S Phenolic Cage Light Preload Universally Ground$114.69
Angular Contact Ball Bearing — 80 mm ID, 140 mm OD, 26 mm Width, 15° Contact Angle, ABEC 7, Light Preload$267.72
Angular Contact Spindle Bearing — 80 mm ID, 140 mm OD, 26 mm Width, 15°, Light Preload, P4S, Phenolic Cage$269.24
Super Precision Angular Contact Ball Bearing, Straight Bore, 80 mm ID, 140 mm OD, 26 mm Width, Open, 15° Contact Angle, Universally Matchable, Extra Light Preload, ABEC 7$290.22| MFR / Brand | Fafnir |
|---|---|
| Model | 2 MM 216 WI CR DUL / 7216 C D P4A DGB |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 80 mm |
| OD | 140 mm |
| Width | 26 mm |
| Material | Bearing Steel |
|---|---|
| Series | 200 |
| Preload | Light |
| Base Number | 7216 |
| Industry Terms | Spindle bearing, machine tool bearing, precision angular contact, universally ground single |
| Common Misspellings | Fafner, Faffnir, Fafnier, 2MM216W1, 2MM 216WL SUL |
| Application Types | Machine tool spindles, grinding spindles, precision gearboxes, rotary tables |
| Bore Shaft Size | 80 mm |
| Mpn Variants | 2MM216WI-SUL, 2MM216WISUL, 2MM-216-WI-CR-SUL, 2MM 216 WI SUL, MM216WI |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50.68 |
| Part Number | 2MM216WI-SUL |
A single Fafnir 2MM216WI super-precision angular contact ball bearing on the 7216 envelope: 80 mm bore, 140 mm OD, 26 mm wide. It is universally ground for light preload (SUL), so it can be run on its own or stacked with identical bearings to build a duplex, triplex or quad set without spacers. This is high-speed machine tool spindle hardware — milling and grinding spindles, precision gearboxes, rotary tables.
2MM — Fafnir super-precision series, 15° contact angle. The MM prefix implies ABEC 7/9 (P4S) tolerance class, not plain P4. 216 — ISO 7216 envelope, 80 x 140 x 26 mm. WI — super-precision spindle bearing design. CR — phenolic outer-land-riding cage. SUL — single, universally ground, light preload.
A 15° contact angle favours speed and radial capacity over thrust; it is the usual choice for the high-speed end of a spindle where axial load is modest. Light preload keeps friction and heat low, which is what allows those speeds. The phenolic outer-land-riding cage is light and quiet at speed but should be kept away from solvents, steam and sustained high temperature.
Bore: 80 mm. Outside diameter: 140 mm. Width: 26 mm. Contact angle: 15°. Tolerance class: ABEC 7/9 (P4S). Preload: light. Cage: phenolic, outer-land riding. Rows: single. Closure: open. Basic dynamic load rating: 103 kN. Basic static load rating: 77 kN. Limiting speed: 10100 rpm. Item weight: 3.20 lbs.
One bearing. Because the rings are universally ground, any number of these can be assembled back-to-back, face-to-face or in tandem and the ground offsets produce the intended light preload automatically.
Equivalent parts are 7216-envelope 15° ABEC 7 light-preload universally ground singles, and the 2MM216WISUL / 2MM-216-WI-CR-SUL forms of this number. Related but NOT interchangeable: 3MM216WI is the same envelope at 25°, and SUM/SUH are medium and heavy preload. Contact angle and preload both have to match the spindle design.
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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
Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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