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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
Angular contact ball bearing pair, 45 x 85 x 19 mm, 15° contact angle, medium preload, phenolic outer-land-riding cage, 38 mm duplex stack height.
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 2MM209WI CR DUM |
| Model | 2 MM 209 WI CR DUM / 7209C T DUM P4 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 45 mm |
| OD | 85 mm |
| Width | 19 mm |
| Material | Bearing Steel |
|---|---|
| Series | 200WI |
| Lubricant | grease or oil |
| Preload | Medium |
| Base Number | 2MM209WI |
| Total Width | 38 mm |
| Overall Width | 19 mm |
| Mpn Variants | 2MM209WICRDUM; 2MM209WI-CR-DUM; 2MM 209 WI CR DUM; 2MM209WIDUM |
| Precision Class | ABEC 7/9 / P4S |
| Dynamic Load Rating C1 | 45,200 N |
| Cage Type | Phenolic outer-land-riding |
| Dynamic Load Rating | 45,200 N |
| Static Load Rating | 28,800 N |
| Precision Rating | ABEC 7/9 / P4S |
| Rolling Elements | Ball |
| Cage Material | Phenolic |
| Limiting Speed | 17,500 rpm grease; 35,000 rpm oil |
| Number Of Rows | 2 |
| Bore Type | Straight |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Mounting Arrangement | Universal |
| Design Units | Metric |
| Bearing Material | Chrome steel |
| Cross Reference 1 | Timken 7209C-T-P4S-DUM |
|---|---|
| Cross Reference 2 | FAG B7209-C-T-P4S-DUM |
| Cross Reference 3 | SKF 7209 CD/P4A DGB |
| Cross Reference 4 | NSK 7209CTRDUMP4 |
| Cross Reference 5 | IBC 7209-C-T-P4S-DUM |
| Cross Reference 6 | 3MM209WI-CR-DUM - 25 deg vs 15 deg, not interchangeable |
Fafnir 2MM209WI-CR-DUM super-precision angular contact ball bearing, 200WI spindle range, 45 x 85 x 19 mm. Unit Quantity: 2 Pcs, one duplex set of two universally ground bearings at medium preload, supplied together as the sale unit.
2MM — 15° contact angle.
MM — Fafnir super-precision execution, ISO Class P4S, equivalent to ABEC 7/9.
209 — 200 spindle series, 45 mm bore, ISO 7209 envelope.
WI — low shoulder on both rings.
CR — phenolic outer-land-riding cage.
DUM — duplex set of two universally ground bearings at medium preload.
Bore Diameter: 45 mm. Outside Diameter: 85 mm. Overall Width: 19 mm per bearing. Total Width: 38 mm. Contact Angle: 15°. Precision Class: ABEC 7/9 / P4S. Dynamic Load Rating: 45,200 N per bearing. Static Load Rating: 28,800 N. Limiting Speed: 17,500 rpm grease; 35,000 rpm oil. Preload: Medium. Cage Type: Phenolic outer-land-riding. Cage Material: Phenolic. Rolling Elements: Ball. Bearing Material: Chrome steel. Bore Type: Straight. Closure Type: Open. Number Of Rows: 2. Mounting Arrangement: Universal. Lubricant: grease or oil. Design Units: Metric. Series: 200WI. Base Number: 2MM209WI.
Straight bore. Shaft backing shoulder diameter: 52.3 mm. Housing backing shoulder diameter: 78.2 mm. Maximum housing fillet radius the bearing corners will clear: 1 mm. Outer ring to-clear radius: 1 mm. Total Width: 38 mm, the mounted stack height of the pair. Mounting Arrangement: Universal; universally ground faces allow the pair to be set back-to-back, face-to-face or in tandem.
Timken 7209C-T-P4S-DUM. FAG B7209-C-T-P4S-DUM. SKF 7209 CD/P4A DGB. NSK 7209CTRDUMP4. IBC 7209-C-T-P4S-DUM. 3MM209WI-CR-DUM — 25° vs 15° contact angle, same 45 x 85 x 19 mm envelope. Searchable forms: 2MM209WICRDUM, 2MM209WI-CR-DUM, 2MM 209 WI CR DUM, 2MM209WIDUM, 7209-C, 7209C.
A duplex set of two universally ground bearings at medium preload.
Bore Diameter: 45 mm. Outside Diameter: 85 mm. Overall Width: 19 mm per bearing. Contact Angle: 15°.
Dynamic Load Rating: 45,200 N per bearing. Static Load Rating: 28,800 N. Limiting Speed: 17,500 rpm grease; 35,000 rpm oil.
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