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Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
Availability:
4 in stock
Super-precision angular contact ball bearing pair, 25 x 47 x 12 mm, 25 degree contact angle, P4 precision, open, phenolic cage, universally ground medium preload.
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$40.33
4 in stock
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| MFR / Brand | Fafnir |
|---|---|
| GTIN | 087796222410 |
| Model | 3MM 9105 WI CR DUM/ 7005 AC/A5 TR/TY P4/P4Y |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 25 mm |
| OD | 47 mm |
| Width | 12 mm |
| Material | High Carbon Chrome Steel |
|---|---|
| Series | 9100 |
| Preload | Medium |
| Base Number | 7005 |
| Industry Terms | spindle bearing; machine tool bearing; precision angular contact bearing; matched duplex pair; ground set; ABEC 7 bearing |
| Common Misspellings | Fafner; Fafnier; 3MM9105W1; 3MM9105 WI DUM |
| Application Types | Machine tool spindles; grinding heads; high-speed rotary tables; precision gearboxes |
| Bore Shaft Size | 25 mm |
| Mpn Variants | 3MM9105WI-DUM; 3MM9105WICRDUM; 3MM-9105-WI-CR-DUM; 3MM9105WI DUM; 3MM9105WIDUM; 3MM9105WI CR DUM |
| Manufacturer Status | Fafnir brand consolidated into Timken; designation unchanged |
| Precision Class | ABEC 7 / P4 |
| Rolling Elements | Ball |
| Cage Material | Phenolic |
| Number Of Rows | 1 per bearing |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 25° |
| Part Number | 3MM9105WI-DUM |
| Cross Reference 1 | SKF 7005 ACD/P4ADGB - 25 deg, medium preload |
|---|---|
| Cross Reference 2 | FAG B7005-E-T-P4S-UM - 25 deg, P4S class |
| Cross Reference 3 | NSK 7005A5TYNDUMP4 - 25 deg, polyamide cage |
| Cross Reference 4 | RHP 7005ETDUMP4 - 25 deg, phenolic cage |
Fafnir (Timken) 3MM9105WI-CR-DUM super-precision angular contact ball bearings, supplied as a factory matched universally ground duplex pair. Bore Diameter: 25 mm. Outside Diameter: 47 mm. Overall Width: 12 mm per bearing. Total Width: 24 mm as a mounted duplex pair. Contact Angle: 25°. Precision Class: ABEC 7 / P4. Cage Material: Phenolic. Preload: Medium. Series: 9100 WI, the 7005 envelope. Base Number: 7005. Number Of Rows: 1 per bearing. Bore Type: Straight. Closure Type: Open. Rolling Elements: Steel balls. Unit Quantity: 2 Pcs.
3MM — 25° contact angle; MM is precision class P4, equivalent to ABEC 7.
9105 — 9100 WI series, the ISO 7005 size at 25 x 47 x 12 mm.
WI — low shoulder on both rings, the duplex form.
CR — phenolic cage.
DU — duplex, universally ground.
M — medium preload.
Medium preload is the middle of the three grades; DUL is the light-preload build of this designation and DUH the heavy-preload build. More preload gives a stiffer spindle, with less axial and radial deflection under cutting load, in exchange for more friction, more heat and a lower usable speed. A 25° contact angle carries substantially more thrust than a 15° bearing in the same envelope and concedes some speed capability. P4 holds tighter running accuracy than a standard-grade bearing, which lowers runout and vibration in a spindle. The phenolic cage is light, quiet and oil-retaining.
Unit Quantity: 2 Pcs — one universally ground duplex pair, supplied as a matched set. Universal grinding means the pair reaches its marked medium preload when the two bearings are clamped together, in back-to-back, face-to-face or tandem orientation.
Fafnir super-precision trades under the Timken name today and the designation is unchanged. Cross-references, 25° medium-preload executions of this envelope: SKF 7005 ACD/P4ADGB, FAG B7005-E-T-P4S-UM, NSK 7005A5TYNDUMP4 and RHP 7005ETDUMP4. The 15° build of the same 25 x 47 x 12 mm envelope is 2MM9105WI. Carton designations: 3MM9105WI-DUM, 3MM9105WICRDUM, 3MM-9105-WI-CR-DUM, 3MM9105WI CR DUM.
$137.64
92 in stock
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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