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Timing Belt Pulleys and V-Belt Sheaves: Matching Belt Drive Components Correctly
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
Availability:
7 in stock
Super-precision angular contact ball bearings, 40 x 68 x 15 mm each, 25° contact angle, light preload duplex pair, phenolic cage, P4 class, open.
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$182.89
7 in stock
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| MFR / Brand | RHP |
|---|---|
| MPN | 7008ETDULP4 |
| Model | 7008 E T DUL P4 / B 7008 X3 TA DU EP7 / 3MM9108WI CR DUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 40 mm |
| OD | 68 mm |
| Width | 15 mm |
| Material | Bearing Steel |
|---|---|
| Series | ISO series 10 (70xx) |
| Lubricant | Grease or oil |
| Preload | Light (L), 200 N axial |
| Base Number | 7008 |
| Industry Terms | super precision bearing, spindle bearing, matched pair bearing, machine tool bearing, precision angular contact bearing |
| Common Misspellings | 7008 ETDUL P4, 7008ET DULP4, RHP 7008 bearng, angular contatct bearing |
| Total Width | 30 mm (1.1811 in) assembled |
| Bore Shaft Size | 40 mm (1.5748 in) |
| Mpn Variants | 7008ETDULP4; 7008-E-T-DUL-P4; 7008 E T DUL P4; B7008X3TADUEP7; B 7008 X3 TA DU EP7; 3MM9108WI CR DUL; 7008 ETDUL P4 |
| Arrangement Configuration | Matched universal duplex set (DU) |
| Precision Class | P4 (ISO Class 4); RHP class code EP7; ABEC 7 |
| Additional Attributes | Shaft abutment d1 min 46 mm; housing abutment D1 max 62 mm; outer ring abutment D2 max 63 mm; chamfer r min 1.0 mm; chamfer r1 min 0.6 mm; effective load centre a 20.1 mm; internal free volume 8.2 cm3 per bearing; PCD of lubrication jets 50.0 mm; axial stiffness 127 N/µm |
| Closure Type | Open |
| Cage Type | Machined, outer ring guided |
| Dynamic Load Rating | 19.5 kN (19,500 N) per bearing |
| Static Load Rating | 15.1 kN (15,100 N) per bearing |
| Precision Rating | P4 (ISO Class 4); RHP class code EP7; ABEC 7 |
| Rolling Elements | Ball |
| Item Weight | 0.417 lb (0.189 kg) per bearing |
| Cage Material | Laminated phenolic resin |
| Limiting Speed | 23,760 rpm oil/air; 14,720 rpm grease (pair) |
| Number Of Rows | 1 per bearing |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 25° |
| Mounting Arrangement | Universal — back-to-back, face-to-face or tandem |
| Bearing Material | Carbon chrome bearing steel (SAE 52100 / BS970 534A99) |
| Running Accuracy | Kia 4 µm max; Kea 5 µm max (P4) |
| Part Number | 7008ETDULP4 |
| Running Accuracy Radial And Axial Runout | Kia 4 µm max; Kea 5 µm max (P4) |
| Application Types | Machine tool spindles; high-speed precision spindles; grinding spindles |
| Cross Reference 1 | NSK 7008A5TRDULP4 |
|---|---|
| Cross Reference 2 | SKF 7008 ACD/P4ADGA |
| Cross Reference 3 | Fafnir 3MM9108WI CR DUL |
RHP 7008ETDULP4 super-precision angular contact ball bearings, supplied as a matched universal duplex set of 2 pieces. Single row, open, ISO series 10 (70xx), 25° contact angle, light preload, phenolic cage, P4 class.
7 — single-row angular contact ball bearing.
0 — ISO dimension series 10.
08 — bore code 08, a 40 mm bore.
E — 25° contact angle in the legacy RHP scheme, written A5 in current NSK notation and confirmed by the X3 in the carton designation B7008X3TADUEP7.
T — laminated phenolic resin cage; the TA in the B-series designation gives outer ring centring.
DU — universally faced duplex set.
L — light preload.
P4 — ISO Class 4, RHP class code EP7, ABEC 7.
Bore Diameter: 40 mm. Outside Diameter: 68 mm. Overall Width: 15 mm per bearing. Total Width: 30 mm assembled. Contact Angle: 25°. Closure Type: Open. Number Of Rows: 1 per bearing. Rolling Elements: Ball. Cage Material: Laminated phenolic resin. Cage Type: Machined, outer ring guided. Precision Class: P4 (ISO Class 4), RHP class code EP7, ABEC 7. Preload: Light (L), 200 N axial. Axial Stiffness: 127 N/µm. Dynamic Load Rating: 19,500 N per bearing. Static Load Rating: 15,100 N per bearing. Limiting Speed: 23,760 rpm oil/air and 14,720 rpm grease for a back-to-back light-preload pair. Running Accuracy: inner ring radial runout Kia 4 µm maximum, outer ring radial runout Kea 5 µm maximum. Bearing Material: Carbon chrome bearing steel, BS970 534A99/535A99 or SAE 52100. Item Weight: 0.189 kg (0.417 lb) per bearing. Unit Quantity: 2 Pcs.
Shaft abutment diameter d1: 46 mm minimum. Housing abutment diameter D1: 62 mm maximum. Outer ring abutment D2: 63 mm maximum. Chamfer r: 1.0 mm minimum. Chamfer r1: 0.6 mm minimum. Effective load centre a: 20.1 mm. Internal free volume: 8.2 cm3 per bearing. PCD of lubrication jets: 50.0 mm. Mounting Arrangement: universal face control, back-to-back, face-to-face or tandem.
Cross-references: NSK 7008A5TRDULP4 (same 25° angle, phenolic outer-ring-guided cage, light-preload universal duplex, Class 4), SKF 7008 ACD/P4ADGA (25°, light preload, P4), Fafnir 3MM9108WI CR DUL (3MM = 25°, CR = phenolic cage, DUL = light-preload duplex). Carton designations: B7008X3TADUEP7, 3MM9108WI CR DUL.
Bore 40 mm, outside diameter 68 mm, width 15 mm per bearing and 30 mm assembled.
The E in the designation is a 25° contact angle and L is light preload, 200 N axial.
P4 is ISO Class 4, equal to RHP class code EP7 and ABEC 7.
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Our team can locate, cross-reference, and source all parts.
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