Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
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Super precision angular contact ball bearing, 50x90x20 mm, 15 degree contact angle, ball-guided cage, face-to-face universal pair, 54,000 N dynamic rating.
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Super Precision Angular Contact Ball Bearing Matched Pair (2 Pcs), 50 x 90 x 20 mm, 15 Degree Contact Angle, Light Preload, ABEC-7 P4Y, Phenolic Cage$254.68
Super-Precision Angular Contact Ball Bearing Duplex Pair – Straight Bore, 50 mm ID, 90 mm OD, 20 mm Width, Open, 15° Contact Angle, ABEC 7, Light Preload, 2 Pcs$52.64
Precision Angular Contact Ball Bearing 50x90x20 mm, ISO P5 / ABEC 5, Special Internal Specification, Open$75.57
Super Precision Angular Contact Ball Bearing - 50 mm ID, 90 mm OD, 20 mm Width, Open, 15°, Medium Preload, ABEC 7.$100.35| MFR / Brand | NSK |
|---|---|
| MPN | 7210CTYDFUPD |
| Model | 7210 C T Y DFU PD KL3S CP22 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 50 mm |
| OD | 90 mm |
| Width | 20 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7200 |
| Lubricant | Oil |
| Base Number | 7210C |
| Industry Terms | Super precision spindle bearing; face-to-face duplex set; universally ground pair; precision angular contact bearing; machine tool spindle bearing |
| Common Misspellings | 7210CTVDFUPD; 7210 CTY DFUPD; 7210CTYDUFPD; 7210CTYDFUPO; NSK 7210CTYDFPD |
| Application Types | Machine tool spindles; grinding spindles; high-speed motor spindles; precision gearboxes; rotary tables |
| Overall Width | 20 mm |
| Mpn Variants | 7210CTYDFUPD; 7210C TY DFU PD; 7210-C-TY-DFU-PD; 7210CTYDFUPDCP22; 7210C TY DFU PD CP22 |
| Additional Attributes | da min 57 mm; Da max 83 mm; Db max 85 mm; ra max 1 mm; rb max 0.6 mm; r min 1.1 mm; r1 min 0.6 mm; effective load centre a 19.4 mm; permissible axial load Pa 21.1 kN; recommended grease quantity 2.8 g per bearing |
| Cage Type | Ball-guided |
| Dynamic Load Rating | 54,000 N |
| Static Load Rating | 31,500 N |
| Rolling Elements | Ball |
| Item Weight | 0.457 kg (1.008 lb) per bearing |
| Number Of Rows | Single Row |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Limiting Speed | 16,500 rpm grease; 25,000 rpm oil |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Mounting Arrangement | Face-to-face universal (DFU) |
| Bearing Material | Bearing Steel |
| Cross Reference 1 | SKF 7210 CD/P4ADGA |
|---|---|
| Cross Reference 2 | FAG B7210-C-T-P4S-DF |
| Cross Reference 3 | Timken (Fafnir) 2MM210WI DF |
| Cross Reference 4 | RHP 7210CTDF |
| Cross Reference 5 | Koyo 7210C-5G DF |
| Cross Reference 6 | NTN 7210CDF/GNP4 |
| Cross Reference 7 | GMN S 6210 C DF |
| Cross Reference 8 | NSK 7210CTRDFUP4 (sibling execution, phenolic outer-ring guided cage) |
| Cross Reference 9 | NSK 7210CTYDBUP4 (back-to-back arrangement, not interchangeable with DF) |
NSK 7210C TY DFU PD is a super precision single-row angular contact ball bearing supplied as a face-to-face universally ground pair. Bore Diameter: 50 mm (1.9685 in). Outside Diameter: 90 mm (3.5433 in). Overall Width: 20 mm (0.7874 in). Contact Angle: 15°. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Number Of Rows: Single Row. Bearing Material: Bearing Steel.
7210 — 72 series super precision angular contact ball bearing in the 10 bore size, giving a 50 mm bore.
C — 15° contact angle.
TY — ball-guided cage.
DFU — face-to-face duplex, universally ground.
Dynamic Load Rating: 54,000 N per bearing. Static Load Rating: 31,500 N per bearing. Dynamic Load Rating (lbf): 12,140 lbf per bearing. Static Load Rating (lbf): 7,081 lbf per bearing. Limiting Speed: 16,500 rpm grease; 25,000 rpm oil. Item Weight: 0.457 kg (1.008 lb) per bearing. Cage Type: Ball-guided. Lubricant: Grease or oil-air. Permissible axial load Pa: 21.1 kN per bearing. Recommended grease quantity: 2.8 g per bearing.
Shaft abutment diameter da min: 57 mm. Housing abutment diameter Da max: 83 mm. Housing abutment diameter Db max: 85 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. Effective load centre a: 19.4 mm.
Unit Quantity: 2 Pcs. Mounting Arrangement: Face-to-face universal (DFU). Series: 7200 Super Precision. Base Number: 7210C. Load ratings and mass stated above are per bearing.
Same-envelope 15° super precision executions: SKF 7210 CD/P4ADGA · FAG B7210-C-T-P4S-DF · Timken 2MM210WI DF · RHP 7210CTDF · Koyo 7210C-5G DF · NTN 7210CDF/GNP4 · GMN S 6210 C DF.
NSK sibling execution 7210CTRDFUP4 carries a phenolic outer-ring guided cage in place of the ball-guided cage. NSK 7210CTYDBUP4 is the same envelope arranged back-to-back and is not interchangeable with the face-to-face set.
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