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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.
Availability:
1 in stock
Super-precision angular contact ball bearing pair, 45 x 75 x 16 mm, 25° contact angle, ABEC 7 / P4, medium preload, phenolic cage, universally matchable.
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$218.65
1 in stock
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 3MM9109WICRDUM |
| GTIN | 087796202436 |
| Model | 3MM 9109 WI CR DUM / 7009 ACD P4A DGB / 7009-A5 |
| Bearing Type | Super-Precision Angular Contact Ball Bearing, Open |
| ID | 45 mm |
| OD | 75 mm |
| Width | 16 mm |
| Material | Chrome Steel |
|---|---|
| Series | Fafnir 3MM9100WI (ISO 70 light series) |
| Preload | Medium |
| Base Number | 7009 |
| Industry Terms | Super precision spindle bearing, machine tool bearing, matched duplex pair, phenolic cage angular contact |
| Common Misspellings | Fafner, Fafnier, Fafnir 3MM9109W1, 3MM9109WIDUM bearing |
| Bore Shaft Size | 45 mm (1.7717 in) |
| Mpn Variants | 3MM9109WICRDUM, 3MM9109WI DUM, 3MM9109WIDUM, 3MM9109WI-DUM, 3MM-9109-WI-CR-DUM, 3MM 9109 WI CR DUM |
| Precision Class | ABEC 7 / P4 |
| Precision Rating | ABEC 7 / P4 |
| Rolling Elements | Steel Balls |
| Cage Material | Phenolic |
| Number Of Rows | 1 per bearing |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 25° |
| Part Number | 3MM9109WI-CR-DUM |
| Application Types | Machine tool spindles; precision spindle assemblies; high-speed machining centers |
| Cross Reference 1 | SKF 7009 ACD/P4A DGB |
|---|---|
| Cross Reference 2 | NSK 7009A5TYNDUMP4 |
| Cross Reference 3 | FAG B7009-E-T-P4S-DUM - P4S class |
Timken Fafnir 3MM9109WICRDUM is a super-precision angular contact ball bearing supplied as a matched pair, 45 mm bore by 75 mm outside diameter by 16 mm width per bearing, 32 mm across the assembled pair, 25° contact angle, medium preload. Open on both faces, with a phenolic cage. Unit Quantity: 2 Pcs.
3MM — 25° contact angle, Fafnir super-precision execution to P4 (ABEC 7).
9109 — 9100 series, ISO 7009 envelope at 45 x 75 x 16 mm.
WI — low shoulder on both rings, the duplex form.
CR — phenolic cage.
DUM — universally matchable duplex pair set to medium preload.
Bore Diameter: 45 mm. Outside Diameter: 75 mm. Width: 16 mm per bearing. Pair Width: 32 mm. Contact Angle: 25°. Precision Class: ABEC 7 / P4. Preload: Medium. Cage Material: Phenolic. Closure Type: Open. Series: 9100WI. Mounting Arrangement: Universal. Unit Quantity: 2 Pcs.
Each bearing is 45 x 75 x 16 mm. Universally matchable duplex construction: the pair mounts back-to-back, face-to-face or in tandem.
SKF 7009 ACD/P4A DGB. NSK 7009A5TYNDUMP4. FAG B7009-E-T-P4S-DUM (P4S class).
25°, from the 3MM prefix.
Medium preload.
Two bearings, a universally matchable duplex pair.
$144.56
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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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