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25 in stock
RHP 7005CTDULP3 matched super precision angular contact bearing pair, 25x47x12 mm, 15° contact angle, light preload, phenolic cage, P3 grade, 2 Pcs.
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$125.43
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| MFR / Brand | RHP |
|---|---|
| Model | B7005 X2 TADUL EP6 2MM9105WI DUL 7005 C T DUL P3 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 25 mm |
| OD | 47 mm |
| Width | 12 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7000 Series |
| Condition | New |
| Lubricant | Oil/Grease |
| Preload | Light |
| Base Number | 7005 |
| Industry Terms | spindle bearing; machine tool bearing; matched pair; DUL duplex; phenolic cage; precision angular contact |
| Application Types | Grinding spindles; compact machine tool spindles; ball screw support; precision rotary axes |
| Total Width | 24 mm as a matched pair |
| Bore Shaft Size | 25 mm |
| Mpn Variants | 7005CTDULP3; 7005 C T DUL P3; 7005-C-T-DUL-P3; 7005CTDUL; 7005C; 7005CTDULP4 |
| Manufacturer Status | RHP super precision production transferred to NSK |
| Arrangement Configuration | DUL — duplex universal matched pair, light preload |
| Precision Class | P3 (dimensional accuracy ISO Class 4, running accuracy ISO Class 2) |
| Cage Type | Machined, outer-ring guided |
| Dynamic Load Rating | 11.7 kN (11,700 N) |
| Static Load Rating | 7.4 kN (7,400 N) |
| Precision Rating | P3 (dimensional accuracy ISO Class 4, running accuracy ISO Class 2) |
| Rolling Elements | Ball |
| Max Temp | 120 °C |
| Item Weight | 0.079 kg (0.174 lb) per bearing |
| Cage Material | Laminated phenolic resin |
| Limiting Speed | 47,500 rpm oil/air; 29,300 rpm grease |
| Number Of Rows | 1 per bearing |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.5028 |
| Contact Angle | 15° |
| Design Units | Metric |
| Bearing Material | Carbon chrome bearing steel (SAE 52100 / BS970 534A99) |
| Running Accuracy | Kia 2.5 µm; Kea 2.5 µm |
| Part Number | 7005CTDULP3 |
| Running Accuracy Radial And Axial Runout | Kia 2.5 µm; Kea 2.5 µm |
| Cross Reference 1 | NSK 7005CTRDULP3 |
|---|---|
| Cross Reference 2 | Timken/Fafnir 2MM9105WI |
An RHP super-precision angular contact ball bearing in the 7005 size, supplied as a universally ground matched duplex pair for light-preload mounting. Bore: 25 mm. Outside Diameter: 47 mm. Width: 12 mm per bearing. Bearing type: Angular contact ball bearing, super precision, single row. Closure: Open. Bore type: Straight. Rolling elements: Ball. Bearing material: Carbon chrome bearing steel, BS970 534A99/535A99 or SAE 52100. Series: ISO series 10 (70xx).
7005 — ISO series 10, bore code 05, giving 25 x 47 x 12 mm.
C — 15° contact angle.
T — laminated phenolic resin cage, outer-ring guided, rated to 120 °C.
DU — duplex universal matched pair, universally face-controlled so the pair mounts back-to-back, face-to-face or in tandem at the specified preload with no measured spacers.
L — light preload.
P3 — intermediate grade: ISO Class 4 dimensional accuracy with ISO Class 2 running accuracy.
Dynamic Load Rating: 11.7 kN (11,700 N). Static Load Rating: 7.4 kN (7,400 N). Limiting Speed: 47,500 rev/min oil/air; 29,300 rev/min grease. Axial Preload, light: 59 N. Axial Stiffness, light preload: 32 N per micrometre. Running Accuracy: Kia 2.5 µm, Kea 2.5 µm. Maximum recommended operating temperature: 120 °C. Lubricant: Grease or oil.
15° is the speed end of the super precision range: the highest limiting speed and the least heat generation of the common angles, trading thrust capacity and axial stiffness for it. That is the right balance on a grinding spindle where surface finish depends on the bearing staying cool and true. Light preload compounds it with lower friction, lower thermal growth and longer grease life. Tabulated limiting speeds apply to a single bearing under spring preload with the inner ring rotating; a back-to-back light-preload pair takes a 0.80 factor and a face-to-face pair a further 50% reduction. The bearing is preload-set at manufacture.
Unit Quantity: 2 Pcs, one matched universal pair. Number of Rows: 1 per bearing. Total Width as a pair: 24 mm.
Each bearing is single-row angular contact and takes thrust in one direction. Back-to-back or face-to-face, the pair locates the shaft in both directions; in tandem both rows share thrust in the same single direction.
Abutment diameters: d1 min 30 mm, D1 max 42 mm, D2 max 44.5 mm. Chamfer: r min 0.6 mm, r1 min 0.3 mm. Effective load centre a: 10.8 mm. Internal free volume: 3.8 cm³. PCD of lubrication jets: 32.9 mm. Mass: 0.079 kg per bearing.
Same 15° angle and light preload in the same envelope: NSK 7005CTRDULP3, Timken/Fafnir 2MM9105WI. Manufacturer status: RHP super precision production passed to NSK. Harmonization Code: 8482.10.5028.
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