HMI Panels and PLC Modules: What They Do and How to Match a Replacement
When an HMI panel goes dark or a PLC module stops communicating, the machine it
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Angular contact ball bearing pair, 20 x 47 x 14 mm, 25° contact angle, ABEC 7 / P4, Medium preload. Fafnir 3MM204WI-DUM duplex set, ISO 7204 size.
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Here are some other options that might fit your project — cross-referenced equivalents and similar parts we have in stock and ready to ship. Need help choosing? Call 585-295-7880.
Super-Precision Angular Contact Ball Bearing Matched Pair - Straight Bore, 20 mm ID, 47 mm OD, 14 mm Width, Open, 25° Contact Angle, Medium Preload, Machined Phenolic Cage.$134.95
Super Precision Angular Contact Ball Bearing - Straight Bore, 20 mm ID, 47 mm OD, 14 mm Width, Open, 25° Contact Angle, Medium Preload, Universally Matchable$61.18
Super Precision Angular Contact Bearing Pair 20x47x14 mm 25° Duplex Universally Ground$120.27
Double Row Angular Contact Ball Bearing - 20 mm ID, 47 mm OD, 20.6 mm Width, 30° Contact Angle, Open, P6$25.33| MFR / Brand | Timken |
|---|---|
| MPN | 3MM204WIDUM |
| GTIN | 087796051935 |
| Model | 3MM204WI DUM |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 20 mm |
| OD | 47 mm |
| Width | 14 mm |
| Material | Bearing Steel |
|---|---|
| Series | 200 |
| Condition | New – Open box |
| Preload | Medium |
| Condition Note | Made in USA. |
| Mpn Variants | 3MM204WIDUM, 3MM204WI-DUM, 3MM204WICRDUM, 3MM 204 WI DUM |
| Precision Class | ABEC 7 / P4 |
| Dynamic Load Rating | 15,500 N |
| Static Load Rating | 7,700 N |
| Rolling Elements | Ball |
| Item Weight | 0.206 kg (0.46 lb) pair |
| Cage Material | Phenolic |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Limiting Speed | 35,000 rpm grease; 64,200 rpm oil |
| Harmonization Code | 8482.10.50.68 |
| Contact Angle | 25° |
| Mounting Arrangement | Duplex universal (DB, DF or DT) |
| Cross Reference 1 | SKF 7204 ACD/P4ADGB |
|---|---|
| Cross Reference 2 | NSK 7204A5TRDUMP4 |
| Cross Reference 3 | FAG B7204-E-T-P4S-DUM |
Timken Fafnir 3MM204WI-DUM is a matched pair of super-precision angular contact ball bearings, universally ground for duplex mounting with Medium preload. Bore Diameter: 20 mm. Outside Diameter: 47 mm. Width: 14 mm per bearing. Contact Angle: 25°. Precision Class: ABEC 7 / P4. Preload: Medium. Cage Material: Phenolic. Closure Type: Open. Rolling Elements: Ball. Item Weight: 0.206 kg (0.46 lb) for the pair.
3MM — Fafnir super-precision angular contact, 25° contact angle, ABEC 7 / ISO P4 tolerances.
204 — 200 light series, ISO 7204 size, 20 x 47 x 14 mm.
WI — low shoulder on both rings, the duplex construction.
DU — duplex universal: two bearings flush-ground to mount back-to-back, face-to-face or tandem.
M — Medium preload.
Dynamic Load Rating: 15,500 N (3,490 lbf) per bearing, Timken C1. Static Load Rating: 7,700 N (1,730 lbf) per bearing. Limiting Speed: 35,000 rpm grease; 64,200 rpm oil. The 25° angle gives higher thrust capacity than a 15° 2MM bearing of the same size.
Max Fillet Radius (mating part): 1 mm (0.039 in). Shaft Backing Shoulder Diameter: 25.8 mm (1.020 in). Housing Backing Shoulder Diameter: 41.5 mm (1.640 in).
Unit Quantity: 2 Pcs, one matched duplex pair. GTIN: 087796051935.
ISO 7204 25° super-precision equivalents with medium preload: SKF 7204 ACD/P4ADGB, NSK 7204A5TRDUMP4, FAG B7204-E-T-P4S-DUM.
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