Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
Availability:
1 in stock
Angular contact ball bearing, 40 x 68 x 15 mm, ABEC 7 / P4 class, light preload, phenolic cage, open. One bearing from a factory-matched duplex pair.
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$91.45

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| MFR / Brand | RHP |
|---|---|
| MPN | 7008TDULP4 |
| Model | 7008 T DUL P4 / B 7008 T DUL EP7 / MM9108WI CR DUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 40 mm |
| OD | 68 mm |
| Width | 15 mm |
| Preload | Light (L) |
|---|---|
| Material | Bearing Steel |
| Base Number | 7008 |
| Industry Terms | Super precision spindle bearing; Half pair spindle bearing; Machine tool spindle bearing; Universally ground angular contact bearing |
| Common Misspellings | 7008 T DUL P4; 7008TDULP-4; 7008TDUL P4; 7008 T DU EP7; MM9108WI CR DUL; 7008TDULP4 1/2PR |
| Application Types | Machine tool spindles; Grinding spindles; Milling and turning spindles; Precision gearboxes |
| Mpn Variants | 7008TDULP4-1/2PR; 7008TDULP4; 7008-T-DUL-P4; 7008TDUEP7; B7008TDULEP7; MM9108WICRDUL |
| Precision Class | ABEC 7 / P4 |
| Additional Attributes | Shaft abutment d1 min 46 mm; abutment D1 max 62 mm; abutment D2 max 63 mm; chamfer r min 1.0 mm; chamfer r1 min 0.6 mm; internal free volume 8.2 cm3; lubrication-jet PCD 50.0 mm; recommended shaft fit at P4 +3 to -2 um; recommended housing fit (locating) +5 to 0 um |
| Cage Type | Machined, outer-ring guided |
| Series | 7000 |
| Rolling Elements | Ball |
| Max Temp | 120 °C |
| Item Weight | 0.189 kg (0.42 lb) |
| Cage Material | Phenolic |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Lubricant | Grease or oil |
| Harmonization Code | 8482.10.50 |
| Mounting Arrangement | One bearing from a matched duplex pair, universally ground |
| Bearing Material | Bearing steel (SAE 52100 equivalent) |
| Running Accuracy | Inner ring radial runout Kia 4 µm max; outer ring radial runout Kea 5 µm max |
| Cross Reference 1 | Timken/Fafnir MM9108WICRDUL |
|---|---|
| Cross Reference 2 | SKF 7008 (same 40x68x15 envelope) |
| Cross Reference 3 | FAG B7008 (same 40x68x15 envelope) |
| Cross Reference 4 | NSK 7008 (same 40x68x15 envelope) |
| Cross Reference 5 | NTN 7008 (same 40x68x15 envelope) |
| Cross Reference 6 | Koyo 7008 (same 40x68x15 envelope) |
| Cross Reference 7 | SNR 7008 (same 40x68x15 envelope) |
RHP 7008TDULP4-1/2PR super precision single-row angular contact ball bearing. Bore Diameter: 40 mm. Outside Diameter: 68 mm. Overall Width: 15 mm. Rolling Elements: Ball. Number Of Rows: 1. Bore Type: Straight. Closure Type: Open. Series: 7000. Base Number: 7008.
7 — single-row angular contact ball bearing.
0 — RHP dimension series 0, ISO series 10.
08 — bore code 08, a 40 mm bore.
T — machined cage in laminated phenolic resin, outer-ring guided. The Fafnir-scheme cage code CR on the same carton is the same laminated phenolic.
DU — duplex universal. The factory set is two bearings ground together with the bores and outside diameters size-graded to share load evenly.
L — light preload. Preload: Light (L).
P4 — RHP precision grade P4. Precision Class: ABEC 7 / P4. The carton’s EP7 marking is the British Standards form of the same grade.
-1/2PR — half a pair. Unit Quantity: 1 Pc.
Precision Class: ABEC 7 / P4. Cage Material: Phenolic. Cage Type: Machined, outer-ring guided. Bearing Material: Bearing steel, SAE 52100 equivalent, through hardened and heat treated for dimensional stability. Lubricant: Grease or oil. Max temp: 120 °C.
At P4 the assembled inner ring runs within 4 µm radial runout and the outer ring within 5 µm. Universal face control means the inner and outer rings are the same width with the face steps pre-adjusted at manufacture, so this bearing pairs with a second universally ground bearing back-to-back, face-to-face or in tandem without custom-ground spacers.
Shaft abutment diameter d1: 46 mm minimum. Abutment diameter D1: 62 mm maximum. Abutment diameter D2: 63 mm maximum. Chamfer dimension r: 1.0 mm minimum. Chamfer dimension r1: 0.6 mm minimum. Internal free volume: 8.2 cm³. Pitch circle diameter for lubrication jets: 50.0 mm. Item Weight: 0.189 kg (0.42 lb). Recommended shaft fit at P4 on a 40 mm seat: +3 to −2 µm. Recommended housing fit for a locating bearing on a 68 mm bore: +5 to 0 µm.
Unit Quantity: 1 Pc. Mounting Arrangement: one bearing from a factory-matched duplex pair, universally face-ground. The ring is marked at the high point of radial runout by a burnished spot on the inner ring face and a V line on the outer ring outside diameter, and the deviation from nominal bore and outside diameter is marked in microns on the ring face.
Timken/Fafnir MM9108WICRDUL is the same bearing under the Fafnir scheme and is marked on the same carton. Bearings sharing the 40 x 68 x 15 mm envelope: SKF 7008, FAG B7008, NSK 7008, NTN 7008, Koyo 7008, SNR 7008.
Rockwell’s own product page for the Kinetix 6000 is down
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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