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Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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1 in stock
Super precision angular contact ball bearing, 45x85x19 mm, 25 degree contact angle, ABEC 7 / P4, medium-preload universally ground duplex pair.
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$191.22
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| MFR / Brand | NSK |
|---|---|
| MPN | 7209A5YTDUMP4 |
| GTIN | 029176018770 |
| Model | 7209 A5 YT DUM P4 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 45 mm |
| OD | 85 mm |
| Width | 19 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7200 Series Super Precision |
| Preload | Medium (M) |
| Base Number | 7209 |
| Industry Terms | Super precision angular contact ball bearing; spindle bearing; matched duplex pair; ABEC 7 bearing; machine tool bearing |
| Common Misspellings | 7209ASYTDUMP4; 7209A5TYDUMP4; 7209A5YTDUM P4; 7209A5YTDUMP-4; 7209 A5YTDUMP4 |
| Application Types | Machine tool spindles; grinding spindles; precision gearboxes; high-speed rotary tables; milling and turning centres |
| Overall Width | 19 mm |
| Mpn Variants | 7209A5YTDUMP4; 7209A5 YT DUM P4; 7209-A5-YT-DUM-P4; 7209A5YT DUM P4; 7209 A5 YT DUM P4 |
| Precision Class | ABEC 7 / P4 |
| Additional Attributes | Effective load centre a 24.7 mm; permissible axial load Pa 23.3 kN; da min 52 mm; Da max 78 mm; Db max 80 mm; ra max 1 mm; rb max 0.6 mm; r min 1.1 mm; r1 min 0.6 mm |
| Dynamic Load Rating | 49,000 N |
| Static Load Rating | 27,600 N |
| Rolling Elements | Ball |
| Item Weight | 0.402 kg (0.886 lb) per bearing |
| Number Of Rows | Single Row |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Limiting Speed | 15,400 rpm grease; 23,100 rpm oil |
| Lubricant | Grease or oil-air; 2.5 g grease per bearing recommended |
| Harmonization Code | 8482.10.5028 |
| Contact Angle | 25° |
| Mounting Arrangement | Universal duplex (DU), pairable DB, DF or DT |
| Bearing Material | Bearing Steel |
| Cross Reference 1 | SKF 7209 ACD/P4A |
|---|---|
| Cross Reference 2 | FAG B7209-E-T-P4S |
| Cross Reference 3 | Fafnir / Timken 3MM9209WI |
| Cross Reference 4 | NSK 7209A5TRDUMP4 (sibling, phenolic cage) |
| Cross Reference 5 | NSK 7209A5TYNDUMP4 (sibling, polyamide cage) |
| Cross Reference 6 | NSK 7209A5TYDUMP4 (sibling, ball-guided cage) |
| Cross Reference 7 | NTN 7209UCDBP4 (comparable 25 degree super precision, not a code-for-code match) |
NSK 7209A5YTDUMP4 is a super precision single-row angular contact ball bearing in the 7200 series, 45 mm bore by 85 mm outside diameter by 19 mm width, supplied as a universally ground pair. Bore Diameter: 45 mm. Outside Diameter: 85 mm. Overall Width: 19 mm. Contact Angle: 25°. Precision Class: ABEC 7 / P4. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Number Of Rows: Single Row. Bearing Material: Bearing Steel. Series: 7200 Series Super Precision. Base Number: 7209.
7209 — 72 dimension series, 45 mm bore.
A5 — 25° contact angle in NSK super precision nomenclature.
YT — a suffix recorded on this part that does not correspond to an established NSK cage code, carried here as an MPN variant.
DU — universally ground duplex set, flush-ground so the two rings pair back-to-back, face-to-face or in tandem.
M — medium preload class.
P4 — ISO Class 4 accuracy, commonly quoted as ABEC 7.
Dynamic Load Rating: 49,000 N per bearing. Static Load Rating: 27,600 N per bearing. Limiting Speed: 15,400 rpm grease; 23,100 rpm oil. Permissible axial load Pa: 23.3 kN. Item Weight: 0.402 kg (0.886 lb) per bearing. Preload: Medium (M). Lubricant: grease or oil-air, 2.5 g grease per bearing recommended. Load ratings and mass are stated per bearing, not per set.
Effective load centre a: 24.7 mm. Shaft abutment diameter da min: 52 mm. Housing abutment diameter Da max: 78 mm. Housing abutment diameter Db max: 80 mm. Shaft fillet radius ra max: 1 mm. Housing fillet radius rb max: 0.6 mm. Chamfer r min: 1.1 mm. Chamfer r1 min: 0.6 mm.
Unit Quantity: 2 Pcs. Mounting Arrangement: universal duplex (DU), pairable DB, DF or DT. A preloaded set carries a defined preload rather than a running internal clearance.
Equivalents at 25° include SKF 7209 ACD/P4A, FAG B7209-E-T-P4S and Fafnir · Timken 3MM9209WI. NSK siblings in the same envelope include 7209A5TRDUMP4 and 7209A5TYNDUMP4, which differ in cage. NTN 7209UCDBP4 is a comparable 25° super precision bearing rather than a code-for-code match.
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