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RHP/NSK 7012CTDULP4 super precision angular contact ball bearing, 60x95x18 mm, 15° contact angle, ABEC 7, light preload, duplex ground, phenolic cage.
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| MFR / Brand | RHP |
|---|---|
| MPN | 7012CTDULP4 |
| Model | 7012CTDULP4 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 60 mm |
| OD | 95 mm |
| Width | 18 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7000 |
| Condition | New |
| Preload | Light Preload |
| Base Number | 7012C |
| Common Misspellings | 7012 CTDULP4, 7012CTDUL P4, 7012CDULP4, 7012CTDLUP4, RHP 7012 C T DUL P4, RHP bearing 7012 |
| Application Types | Machine tool spindles, grinding spindles, milling and turning centres, high-speed rotary and indexing tables, precision gearboxes, test rigs |
| Bore Shaft Size | 60 mm |
| Mpn Variants | 7012CTDULP4, 7012C-T-DUL-P4, 7012-C-T-DUL-P4, 7012 C T DUL P4, 7012CTDUL, 7012CDULP4, 7012C, 7012 |
| Manufacturer Status | RHP brand discontinued; line continued by NSK |
| Compatible With Replaces | Replaces RHP/NSK 7012C super precision spindle bearings of matching 15° contact angle, P4 class and light preload. |
| Rolling Elements | Ball |
| Number Of Rows | 1 per bearing |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Part Number | 7012CTDULP4 |
| Cross Reference 6 | NTN 7012CGD2GLP4 (GD2GL = universally ground duplex light preload) |
|---|---|
| Cross Reference 7 | ISO base number 7012C |
RHP (NSK) 7012CTDULP4 is a super precision angular contact ball bearing from the ISO series 10 (70xx) light section, ground as part of a duplex set. Brand: RHP (now NSK). Part Number: 7012CTDULP4. Base Number: 7012C. Series: 70. Number Of Rows: 1 per bearing. Rolling Elements: Balls. Bore Type: Straight. Closure Type: Open. Seal Type: Open. Design Units: Metric. Harmonization Code: 8482.10.50.
Bore: 60 mm. Outside Diameter: 95 mm. Overall Width: 18 mm per bearing. Chamfer r min: 1.1 mm. Chamfer r1 min: 0.6 mm. Weight: 0.407 kg (0.90 lb) per bearing.
Basic Dynamic Load Rating Cr: 35.0 kN (35,000 N) per bearing. Basic Static Load Rating Cor: 30.5 kN (30,500 N) per bearing. Source: RHP Super Precision Angular Contact Ball Bearings catalogue, ref C859/B/E/I/03.02, Table 9, ISO series 10, row 7012CTRSU.
Limiting Speed, oil/air lubrication: 23,000 rpm. Limiting Speed, grease lubrication: 14,200 rpm. Both are catalogue single-bearing figures under spring preload. Applying the catalogue back-to-back pair factor of 0.80 for light preload gives 18,400 rpm oil/air and 11,360 rpm grease for a DB pair.
Contact Angle: 15°. Preload: Light (L). Axial Preload, light grade, paired: 200 N. Axial Stiffness, light grade, paired: 70 N per micrometre. Effective Load Centre a: 19.4 mm.
Cage Type: Machined one-piece, outer-ring guided. Cage Material: Laminated phenolic resin. Maximum recommended operating temperature for laminated phenolic resin caged bearings: 120°C. Precision Class: P4 (ISO class 4, equivalent to ABEC 7). Ring and ball material: through-hardened carbon chrome bearing steel to BS970:534A99 / 535A99, equivalent to SAE 52100.
Mounting Arrangement: Duplex, universally ground (DU) — back-to-back (DB), face-to-face (DF) or tandem (DT) at the ground light preload with no shimming. Abutment diameter d1 min: 67 mm. Abutment diameter D1 max: 88 mm. Abutment diameter D2 max: 90 mm. Internal Volume: 18.0 cm3. Pitch circle diameter of lubrication jets: 72.5 mm. The high point of radial runout is marked by a burnished spot on the inner ring face and a V line on the outer ring diameter, and the V line indicates the direction of the contact angle.
Designation breakdown per the RHP system: 7 single-row angular contact ball bearing; 0 dimension series 10; 12 bore code, 60 mm bore; C 15° contact angle; T outer-ring-guided phenolic cage; DU duplex universal; L light preload; P4 ISO class 4, ABEC 7. Same-envelope interchange at 15° and P4: NSK 7012CTRDULP4, NSK 7012CTYNDULP4, SKF 7012CD/P4ADGA, FAG B7012C.T.P4S.UL, NTN 7012CGD2GLP4. Application Types: machine tool spindles, grinding spindles, milling and turning centres, high-speed rotary and indexing tables, precision gearboxes and test rigs.
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