store 
Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
Availability:
1 in stock
Matched duplex pair of super-precision angular contact ball bearings, 105 mm bore x 160 mm OD x 26 mm wide each, 15° contact angle, light preload, phenolic outer-land-riding cage, ABEC 7/9. Sold as 2 Pcs.
List Price
$818.29
1 in stock
On the Shelf & Ready to Ship
On all orders
No Risk, No Hassle
| MFR / Brand | Fafnir |
|---|---|
| MPN | 2MM9121WIDUL |
| GTIN | 087796073111 |
| Model | 2MM9121WI-DUL 7021C |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 105 mm |
| OD | 160 mm |
| Width | 26 mm |
| Material | Steel |
|---|---|
| Series | 9100 |
| Base Number | 2MM9121WI |
| Industry Terms | super precision spindle bearing set, matched pair angular contact, phenolic cage bearing, ABEC 9 duplex |
| Common Misspellings | 2MM9121WIDUL, 2MM 9121 WI DUL, Fafner, Faffnir, 2MM9121W1-DUL |
| Application Types | Machine tool spindles, grinding spindles, precision gearboxes, rotary tables |
| Bore Shaft Size | 105 mm (4.134 in) |
| Mpn Variants | 2MM9121WI-DUL, 2MM9121WI-CR-DUL, 2MM-9121-WI-CR-DUL, 2MM9121WIDUL, 2MM 9121 WI CR DUL, 7021C, 7021CTRDULP4, 121-HDL |
| Rolling Elements | Balls |
| Number Of Rows | 1 per bearing |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50 |
| Part Number | 2MM9121WI-CR-DUL |
A Fafnir 2MM9121WI-CR-DUL matched duplex pair of super-precision single-row angular contact ball bearings. Each bearing is 105 mm bore, 160 mm outside diameter, 26 mm wide, giving 52 mm total stack width. Open on both faces, universally ground as a set.
2MM — 15° contact angle in the Fafnir scheme; the MM prefix carries the P4S build9121 — leading 9 marks the ISO 70 light series, 105 mm bore, so the ISO equivalent is 7021-CWI — super-precision spindle bearing seriesCR — phenolic outer-land-riding cageDU — duplex, ground as a matched setL — light preload
An outer-land-riding phenolic cage is guided on the outer ring rather than the balls, which keeps cage motion stable at high speed and holds oil in the pocket faces. The 15° angle favours speed and radial stiffness; light preload gives the lowest running temperature of the three grades.
Bore: 105 mmOutside diameter: 160 mmWidth: 26 mm per bearing, 52 mm stackedContact angle: 15°Precision: P4S — ABEC 7 / ABEC 9Preload: light, factory matchedCage: phenolic, outer-land ridingRows: 1 per bearingClosure: open
Matched duplex pair. 2 Pcs per sale unit.
Each bearing carries thrust in one direction; the pair mounted back-to-back or face-to-face covers both. The etched marks on the outer rings align to hold the matched offset as ground.
Same-spec matched pairs at 15°, super precision, light preload: RHP 7021CTDULP4, FAG B7021C.T.P4S.UL, SKF 7021 CD/P4ADGA, NSK 7021CTRDULP4, SNR 7021CG1DUJ74. The 25° 3MM9121WI is a related size rather than an interchange.
Rockwell’s own product page for the Kinetix 6000 is down
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
When an HMI panel goes dark or a PLC module stops communicating, the machine it
If you have ever watched a machine glide smoothly back and forth, tracing a perfect
Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
Sort
Brand
Price
MPN
Categories
