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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
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1 in stock
Angular contact ball bearing pair, 50 mm bore, 80 mm OD, 16 mm wide, 15° contact angle, ABEC 9 / P2. Back-to-back DB matched set with Heavy preload.
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| MFR / Brand | NTN |
|---|---|
| MPN | 7010CDBGHUP2 |
| Model | 7010 C DB GH UP2 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 50 mm |
| OD | 80 mm |
| Width | 16 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7000 |
| Lubricant | Oil/Grease |
| Preload | Heavy |
| Base Number | 7010 |
| Total Width | 32 mm (DB pair) |
| Mpn Variants | 7010CDBGHUP2, 7010C DB GH UP2, 7010-C-DB-GH-UP2, 7010CDB/GHUP2, 2MMV9110 WI CR DBH (carton marking) |
| Precision Class | ABEC 9 / P2 |
| Closure Type | Open |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Mounting Arrangement | Back-to-back (DB) |
| Cross Reference 1 | Fafnir 2MMV9110WI CR DBH (15°, DB heavy, MMV class) |
|---|
NTN 7010CDBGHUP2 is a matched pair of super-precision single-row angular contact ball bearings in the ISO 7010 size, ground for back-to-back mounting with Heavy preload. Bore Diameter: 50 mm. Outside Diameter: 80 mm. Width: 16 mm per bearing. Total Width: 32 mm as a DB pair. Contact Angle: 15°. Preload: Heavy. Precision Class: ABEC 9 / P2.
7010 — NTN single-row angular contact ball bearing, 70 series, 50 mm bore.
C — 15° contact angle.
DB — back-to-back matched pair. Two single-row bearings ground as a set. Not a double-row bearing.
GH — Heavy preload.
UP — NTN ultra-high precision execution.
P2 — ISO tolerance class 2, equivalent to ABEC 9.
The 15° angle favours radial stiffness and high speed. Back-to-back mounting takes axial load in both directions with high tilting stiffness. Heavy preload maximises rigidity for machine-tool spindles running at moderate speed. ABEC 9 is the tightest standard running-accuracy grade.
Fillet Radius r min: 1.0 mm. Fillet Radius r1 min: 0.6 mm. Effective Load Centre a: 16.5 mm per bearing. Shaft Abutment da min: 55.5 mm. Housing Abutment Da max: 74.5 mm.
Unit Quantity: 2 Pcs. One DB matched pair. Mounting Arrangement: Back-to-back (DB). Carton marking: 2MMV9110 WI CR DBH.
Fafnir 2MMV9110WI CR DBH is a 15° back-to-back heavy-preload pair in the 50 x 80 x 16 mm size; its MMV class is ABEC 7 dimensional with ABEC 9 running accuracy. Check the class before substituting.
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