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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:
24 in stock
NSK 7209A5-DUL angular contact ball bearing duplex set, 45 x 85 x 19 mm, 25° contact angle, light preload, Cr 49.0 kN, C0r 27.6 kN, open, universally ground.
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| MFR / Brand | NSK |
|---|---|
| MPN | 7209A5-DUL |
| Model | 7209 A5TY DUL PA1 7209A / 7209 ACD DGA / 7209 E DUL |
| Bearing Type | Angular Contact Ball Bearing, universal duplex set, Open, both faces |
| ID | 45 mm |
| OD | 85 mm |
| Width | 19 mm per bearing |
| Material | High Carbon Chrome Steel |
|---|---|
| Series | 7200 (ISO 72 medium series) |
| Preload | Light (L) |
| Base Number | 7209 |
| Industry Terms | Angular contact ball bearing; matched pair; universal duplex; spindle bearing |
| Common Misspellings | 7209A5-DUI; 7209 A5DUL; 7209A5DLU |
| Total Width | 38 mm as a mounted duplex pair |
| Bore Shaft Size | 45 mm |
| Mpn Variants | 7209A5-DUL; 7209A5DUL; 7209-A5TY-DUL-PA1; 7209A5TYDUL; 7209 A5 DUL |
| Arrangement Configuration | DUL - universal duplex set, light preload |
| Dynamic Load Rating | 49,000 N |
| Static Load Rating | 27,600 N |
| Rolling Elements | Ball |
| Item Weight | 0.402 kg per bearing |
| Number Of Rows | 1 per bearing (2 rows in the mounted set) |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50.28 |
| Contact Angle | 25° |
| Cross Reference 1 | SKF 7209 ACD/P4ADGA |
|---|---|
| Cross Reference 2 | Fafnir 3MM209WI-DUL |
| Cross Reference 3 | NSK 7209C-DUL - 15 deg vs 25 deg |
NSK 7209A5-DUL angular contact ball bearing, supplied as a universally ground duplex set of two (Unit Quantity: 2 Pcs). Single row per bearing, open, straight bore, 25° contact angle, light preload. Series 7200, ISO 72 medium series.
7209 — ISO 72 medium series, bore code 09, 45 mm bore.
A5 — NSK code for a 25° contact angle.
DUL — universal duplex pairing, light preload.
Bore Diameter: 45 mm. Outside Diameter: 85 mm. Overall Width: 19 mm per bearing. Total Width: 38 mm for the pair. Contact Angle: 25°. Dynamic Load Rating: 49,000 N per bearing. Static Load Rating: 27,600 N per bearing. Permissible Axial Load: 23,300 N. Preload: Light. Rolling Elements: Ball. Number Of Rows: 1 per bearing. Bore Type: Straight. Closure Type: Open. Item Weight: 0.402 kg per bearing. Material: High carbon chrome steel. Country of Origin: Japan.
Contact point distance a: 24.7 mm. Shaft shoulder diameter da: 52 mm minimum. Housing shoulder diameter Da: 78 mm maximum; Db: 80 mm maximum. Chamfer r: 1.1 mm minimum; r1: 0.6 mm minimum. Universally ground, so the pair can be arranged back-to-back, face-to-face or in tandem with light preload in each arrangement.
Cross-references: SKF 7209 ACD/P4ADGA (25°, light preload); Fafnir 3MM209WI-DUL (25°, light preload); NSK 7209C-DUL is the 15° execution. Carton marking 7209-A5TY-DUL-PA1. Also written 7209A5DUL, 7209A5TYDUL and 7209 A5 DUL.
Bore 45 mm, outside diameter 85 mm, width 19 mm per bearing, 38 mm for the pair.
Dynamic 49,000 N and static 27,600 N per bearing (NSK 7209A5 data).
A5 is a 25° contact angle; DUL is a universal duplex pair with light preload.
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Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
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If you pulled a bearing off general industrial equipment at random, there’s a good chance
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