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Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Availability:
1 in stock
Super-precision angular contact ball bearing triple set, 20 x 42 x 12 mm each, 25 degree contact angle, light preload, phenolic cage, universally ground.
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$192.35
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 3MM9104WI TUL |
| GTIN | 087796333611 |
| Model | 3MM 9104 WI CR TUL / 7004 AC D P4A DGA / 7004 A5 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 20 mm |
| OD | 42 mm |
| Width | 12 mm |
| Material | Bearing Steel |
|---|---|
| Series | 9100WI |
| Preload | Light |
| Base Number | 9104 |
| Overall Width | 12 mm |
| Mpn Variants | 3MM9104WI-TUL; 3MM9104WICRTUL; 3MM-9104-WI-CR-TUL; 3MM 9104 WI CR TUL |
| Precision Class | ABEC 7 / P4 |
| Dynamic Load Rating | 11,100 N |
| Static Load Rating | 5,700 N |
| Rolling Elements | Ball |
| Cage Material | Phenolic |
| Number Of Rows | 3 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Limiting Speed | 36,500 rpm grease; 66,800 rpm oil |
| Internal Clearance | N/A |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 25° |
| Mounting Arrangement | Matched triple set |
| Bearing Material | Bearing Steel |
| Cross Reference 1 | SKF 7004 ACD/P4A - 25 deg, P4A class |
|---|---|
| Cross Reference 2 | FAG B7004-E-T-P4S - 25 deg, P4S class |
| Cross Reference 3 | NSK 7004A5TRSU P4 - 25 deg, P4 class |
| Cross Reference 4 | SNFA EX20 7CE3 - 25 deg |
Fafnir 3MM9104WI-CR-TUL super-precision angular contact ball bearing, supplied as a matched triple set, three bearings ground as one factory-matched TUL set. Bore 20 mm, outside diameter 42 mm, width 12 mm per bearing. Unit Quantity: 3 Pcs.
3MM — 25° contact angle, in Timken’s MM super-precision spindle range.
MM — precision class ABEC 7 / P4.
9104 — the 20 mm bore size in the 9100 spindle series, on ISO 7004 boundary dimensions.
WI — low shoulder on both rings.
CR — phenolic cage.
TU — triple, three bearings ground as one matched set.
L — light preload.
Bore Diameter: 20 mm. Outside Diameter: 42 mm. Overall Width: 12 mm per bearing. Contact Angle: 25°. Dynamic Load Rating: 11,100 N per bearing. Static Load Rating: 5,700 N per bearing. Limiting Speed: 36,500 rpm grease; 66,800 rpm oil. Precision Class: ABEC 7 / P4. Cage Material: Phenolic. Preload: Light. Mounting Arrangement: Matched triple set. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Series: 9100WI. Base Number: 9104. GTIN: 087796333611. Unit Quantity: 3 Pcs.
Shaft backing shoulder diameter: 24.8 mm. Housing backing shoulder diameter: 37.7 mm. Maximum housing fillet radius: 0.6 mm. Straight bore.
SKF 7004 ACD/P4A — 25°, P4A class. FAG B7004-E-T-P4S — 25°, P4S class. NSK 7004A5TRSU P4 — 25°, P4 class. SNFA EX20 7CE3 — 25°. The Fafnir 2MM9104WI-CR-TUL shares the envelope at 15°. Part number variants: 3MM9104WI-TUL, 3MM9104WICRTUL, 3MM-9104-WI-CR-TUL, 3MM 9104 WI CR TUL.
Contact Angle: 25°.
GTIN: 087796333611.
Unit Quantity: 3 Pcs, one factory-matched TUL triple set.
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