Motor Starters vs. Contactors vs. Overload Relays: What Each One Does and Why You Need All Three
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Availability:
2 in stock
Super-precision angular contact ball bearing, 40 x 68 x 15 mm, 15° contact angle, phenolic cage, ABEC 7, medium preload, universally matchable pair.
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$163.84
2 in stock
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| MFR / Brand | SNR |
|---|---|
| MPN | 7008CG1DUJ84 |
| Model | 7008 C T DUM P4 / 2MM9108WI CR DUM / 7008 C G1 DU J84 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 40 mm |
| OD | 68 mm |
| Width | 15 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7000 |
| Condition | New |
| Preload | Medium |
| Base Number | 7008 |
| Overall Width | 15 mm |
| Bore Shaft Size | 40 mm |
| Mpn Variants | 7008CG1DUJ84 / 7008C-G1-DU-J84 / 7008 C G1 DU J84 |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Part Number | 7008CG1DUJ84 |
NTN-SNR 7008CG1DUJ84 super-precision angular contact ball bearing, ISO 70 dimension series, supplied as a universally matchable set of two. Bore: 40 mm. Outside Diameter: 68 mm. Overall Width: 15 mm. Contact Angle: 15°. Number Of Rows: 1. Rolling Elements: Ball. Bearing Material: Bearing steel. Closure Type: Open. Bore Type: Straight. Series: ISO 70.
7008 gives the ISO 70 dimension series and the 40 mm bore. C sets the Contact Angle: 15°. G1 gives the cage — Cage Material: Phenolic (laminated resin), Cage Type: Machined, outer-ring centred. J84 sets Preload: Medium and Precision Class: ISO Class 4 (ABEC 7 / P4). Searchable forms of the number: 7008CG1DUJ84, 7008C-G1-DU-J84, 7008 C G1 DU J84.
A 15° contact angle runs faster and stiffer in the radial direction than a 25° angle, and carries less thrust, which suits high-speed machine-tool spindles. Cage Material: Phenolic (laminated resin) runs light and quiet at high speed and takes oil-mist and oil-air lubrication. Cage Type: Machined, outer-ring centred holds the cage stable on the outer-ring land at speed. Precision Class: ISO Class 4 (ABEC 7 / P4) holds running accuracy close, giving low radial and axial runout. Preload: Medium fixes the axial stiffness of the mounted set. Internal Clearance: N/A — a preloaded set is stiffness-set rather than clearance-set.
Unit Quantity: 2 Pcs, a factory-matched pair. Mounting Arrangement: Universal (DB, DF or DT). The pair stacks back-to-back, face-to-face or in tandem and reaches the same preload in any of the three.
Carton cross-designations: SKF 7008 CD/P4ADGB, FAG B7008-C-T-P4S-DUM, NSK 7008CTRDUMP4, Fafnir 2MM9108WI CR DUM. Each carries a 15° contact angle and a universally matchable medium-preload pair on the same 40 x 68 x 15 mm envelope. A 7008A5, 7008ACD or 7008H execution shares the envelope at 25° and is a related size rather than a substitution.
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