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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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2 in stock
Fafnir 2MM9128WI-DUM angular contact ball bearing, 140mm bore, 210mm OD, 33mm width, duplex pair, 15° contact angle, medium preload, ABEC 7 precision.
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 2MM9128WI DUM |
| GTIN | 087796052185 |
| Model | 2MM9128 WI DUM 7028C |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 140 mm |
| OD | 210 mm |
| Width | 33 mm |
| Series | 9100 |
|---|---|
| Preload | Medium |
| Arrangement Configuration | Duplex pair, universally ground |
| Precision Class | ABEC 7 / P4 |
| Closure Type | Open |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50.28 |
| Contact Angle | 15° |
| Bearing Material | Bearing Steel |
| Industry Terms | Super precision angular contact bearing; duplex matched pair; machine tool spindle bearing; universal ground duplex; 9100 series Fafnir |
| Common Misspellings | Fafnir 2MM9128 WI DUM; 2MM9128W1-DUM; 2MM 9128 WI DUM; Fanir 2MM9128WI |
| Application Types | Machine tool spindles; precision spindle assemblies; high-speed precision machinery |
| Mpn Variants | 2MM9128WI DUM; 2MM9128WI-DUM; 2MM-9128-WI-DUM; 2MM9128WIDUM; 7028C; 7028-C |
| Cross Reference 1 | 7028-C (carton cross-reference) |
|---|
Fafnir 2MM9128WI-DUM angular contact ball bearing, 140 mm bore, 210 mm outside diameter, 33 mm width per bearing, supplied as a duplex pair ground for face-to-face or back-to-back mounting. Contact Angle: 15°. Preload: Medium. Unit Quantity: 2 Pcs. Country of origin: United States.
2MM — Fafnir 15° contact angle series, ABEC 7 / ISO P4 precision.
9128 — Fafnir size code for the 140 x 210 x 33 mm envelope, cross-referenced on the carton as 7028-C.
WI — low-shoulder duplex form, ground for pairing.
DUM — duplex universal ground, medium preload.
Bore Diameter: 140 mm. Outside Diameter: 210 mm. Overall Width: 33 mm per bearing. Contact Angle: 15°. Precision Class: ABEC 7 / P4. Preload: Medium. Closure Type: Open. Number Of Rows: 1 per bearing. Rolling Elements: Ball. Bore Type: Straight. Series: 9100. Arrangement / Configuration: duplex pair, universally ground. Unit Quantity: 2 Pcs.
Duplex-ground pair. The ground faces set medium preload once the two bearings are mounted together, in face-to-face or back-to-back arrangement.
Carton cross-reference: 7028-C. Searchable forms: 2MM9128WI DUM, 2MM9128WI-DUM, 2MM-9128-WI-DUM, 2MM9128WIDUM and 7028C.
Bore 140 mm, outside diameter 210 mm, width 33 mm per bearing.
DUM is a duplex universal ground pair with medium preload.
Contact angle 15°; precision ABEC 7 / ISO P4.
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