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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:
2 in stock
Super-precision angular contact ball bearing, 70 x 125 x 24 mm, 25° contact angle, ABEC 7 (P4), light preload duplex pair, ball-guided cage, open.
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$359.51
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| MFR / Brand | NSK |
|---|---|
| MPN | 7214A5TYDULP4 |
| Model | 7214 A5TY DUL P4 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 70 mm (2.7559 in) |
| OD | 125 mm (4.9213 in) |
| Width | 24 mm (0.9449 in) |
| Material | Bearing Steel |
|---|---|
| Series | 7200 |
| Lubricant | Oil |
| Base Number | 7214A5 |
| Industry Terms | Super precision spindle bearing, machine tool angular contact bearing, matched duplex pair, ABEC 7 ball bearing |
| Bore Shaft Size | 70 mm (2.7559 in) |
| Mpn Variants | 7214A5TYDULP4, 7214-A5TY-DUL-P4, 7214 A5TY DUL P4, 7214A5TY DUL P4, 7214A5 |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50.28 |
| Contact Angle | 25° |
| Part Number | 7214A5TYDULP4 |
NSK 7214A5TYDULP4 super-precision angular contact ball bearing, 70 mm bore × 125 mm outside diameter × 24 mm width. Series: 7200. Contact Angle: 25°. Precision Class: P4, ABEC 7. Preload: light. Supplied as a universally matchable duplex pair, 2 pieces, open on both faces.
Base Number: 7214A5. A5: 25° contact angle. TY: ball-guided cage. DUL: duplex universally ground set at light preload. P4: ISO Class 4, ABEC 7. The number is also written 7214-A5TY-DUL-P4, 7214 A5TY DUL P4 and 7214A5TY DUL P4.
A 25° contact angle carries more thrust and less speed than a 15° bearing on the same envelope. Basic Dynamic Load Rating: 95.5 kN. Basic Static Load Rating: 61.5 kN. Permissible Axial Load: 49.5 kN. Limiting Speed: 10,000 rpm on grease, 14,000 rpm on oil or oil-air. Effective Load Center: 34.7 mm. ABEC 7 tolerances give closer shaft location and lower running vibration than a standard-class bearing.
Two bearings, ground as a universally matchable set. A universal set mounts back-to-back, face-to-face or in tandem from the same pair of rings. Light preload gives 781 N axial preload and 239 N per micron axial rigidity in a back-to-back or face-to-face mounting. Total width of the pair: 48 mm. Preloaded sets are supplied without a running clearance.
Diameter of Shaft Abutment: 79 mm minimum. Diameter of Housing Abutment: 116 mm maximum, 119 mm maximum on the opposing face. Shaft and housing fillet radii: 1.5 mm and 0.8 mm maximum. Chamfer dimensions: 1.5 mm and 1 mm minimum. Recommended grease quantity: 6.0 g per bearing. Mass: 1.08 kg per bearing.
SKF 7214 ACD/P4A DGA is a same-envelope 25° universally matchable set at light preload. FAG B7214-E-T-P4S-UL covers the same envelope and angle with a phenolic cage, so it is a related size. A 7214C on the same envelope carries a 15° contact angle and is a related size.
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