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Fafnir 3MM211WI-DUH matched duplex pair of super-precision angular contact ball bearings, 55 x 100 x 21 mm, 25 degree contact angle, heavy preload.
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 3MM211WI DUH |
| Model | 3 MM 211 WI CR DUH / ABEC7 / 7211A5 P4 / 7211AC |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 55 mm |
| OD | 100 mm |
| Width | 21 mm |
| Material | Bearing Steel |
|---|---|
| Series | 200 |
| Preload | Heavy |
| Base Number | 3MM211WI |
| Industry Terms | Spindle bearing, machine tool bearing, super precision angular contact, matched duplex pair, DUH set, 7211 |
| Common Misspellings | Fafner, Faffnir, 3MM211W1, 3MM 211 WL, 3MM211WI DUII |
| Bore Shaft Size | 55 mm |
| Mpn Variants | 3MM211WI-DUH, 3MM211WIDUH, 3MM 211 WI DUH, 3MM-211-WI-CR-DUH, 7211A5 P4S, 7211AC, 7211A, 3MM211WI |
| Precision Class | ABEC 7/9 (P4S) |
| Cage Type | Machined |
| Rolling Elements | Ball |
| Cage Material | Phenolic |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50.68 |
| Contact Angle | 25° |
| Part Number | 3MM211WI-DUH |
| Cross Reference 1 | SKF 7211 ACD/P4ADGC (related, 25 deg heavy preload duplex) |
|---|---|
| Cross Reference 2 | FAG B7211-E-T-P4S-DUH (related, 25 deg heavy preload duplex) |
Fafnir 3MM211WI-DUH is a matched duplex pair of super-precision angular contact ball bearings, 200 series, universally ground with heavy preload. Brand: Fafnir (Timken). Part Number: 3MM211WI-DUH. Bore Diameter: 55 mm. Outside Diameter: 100 mm. Overall Width: 21 mm per bearing. Contact Angle: 25°. Number Of Rows: 1 per bearing. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Unit Quantity: 2 Pcs.
3MM — Fafnir super-precision angular contact series with a 25° contact angle.
211 — bore code, 11 x 5 = 55 mm bore, ISO 7211 envelope.
DUH — duplex universal, heavy preload. The pair is ground so the two bearings mount back-to-back, face-to-face or in tandem.
Bearing Type: Angular Contact Ball Bearing. Bore Diameter: 55 mm. Outside Diameter: 100 mm. Overall Width: 21 mm per bearing. Total Width: 42 mm for the pair as mounted. Contact Angle: 25°. Precision Class: ABEC 7/9 (P4S). Cage Material: Phenolic. Cage Type: Machined. Preload: Heavy. Arrangement / Configuration: Matched duplex pair, universally ground. Series: 200 (ISO 72). Snap Ring Included: No. Harmonization Code: 8482.10.50.68.
Mounting Arrangement: Universal. Bore Type: Straight. Overall Width: 21 mm per bearing; 42 mm for the pair.
Related 25° heavy-preload duplex sets on the 55 x 100 x 21 mm envelope: SKF 7211 ACD/P4ADGC, FAG B7211-E-T-P4S-DUH. Designation variants: 3MM211WI-DUH, 3MM211WIDUH, 3MM 211 WI DUH, 3MM-211-WI-CR-DUH, 7211A5 P4S, 7211AC, 7211A, 3MM211WI.
Bore Diameter: 55 mm. Outside Diameter: 100 mm. Overall Width: 21 mm per bearing.
Contact Angle: 25°. Preload: Heavy.
Unit Quantity: 2 Pcs, a matched duplex pair.
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