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Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
Availability:
3 in stock
Super precision angular contact spindle bearing, 60 x 85 x 13 mm, 15 degree contact angle, ABEC 7 class, light preload, machined phenolic cage.
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$139.11
3 in stock
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| MFR / Brand | RHP |
|---|---|
| MPN | 7912CTSULP4 |
| Model | 7912 C T SUL P4 / B7912-C-T-DUL-EP7 / 2MM9312WI CR DUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 60 mm |
| OD | 85 mm |
| Width | 13 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7900 |
| Lubricant | Oil |
| Preload | Light |
| Base Number | 7912C |
| Industry Terms | spindle bearing, super precision angular contact, thin section angular contact, phenolic cage bearing, ABEC 7 bearing, 15 degree angular contact |
| Common Misspellings | RHP 7912CTSULP-4, 7912C TSUL P4, RPH 7912CTSULP4, 7912CTSULPA, RHP 7912 CT SUL P4 |
| Application Types | Machine tool spindles, grinding spindles, precision index heads, high-speed rotary tables |
| Total Width | 13 mm |
| Bore Shaft Size | 60 mm (2.3622 in) |
| Mpn Variants | 7912CTSULP4, 7912-C-T-SUL-P4, 7912 C T SUL P4, 7912CTSUL, 71912, 71912CTSULP4 |
| Manufacturer Status | RHP brand now supplied under NSK |
| Arrangement Configuration | Single universal (SU) |
| Precision Class | P4 (ISO Class 4, ABEC 7) |
| Dynamic Load Rating C1 | 19,400 N |
| Cage Type | Machined, outer ring guided |
| Dynamic Load Rating | 19,400 N |
| Static Load Rating | 18,700 N |
| Precision Rating | ABEC 7 |
| Rolling Elements | Steel balls |
| Max Temp | 120 °C |
| Item Weight | 0.191 kg (0.421 lb) |
| Cage Material | Phenolic |
| Limiting Speed | 24,900 rpm oil/air; 15,400 rpm grease |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Mounting Arrangement | Universal |
| Bearing Class | ISO Class 4 |
| Bearing Material | Carbon chrome bearing steel (SAE 52100) |
| Part Number | 7912CTSULP4 |
| Cross Reference 1 | NSK 7912CTRSULP4 (same class, light preload) |
|---|---|
| Cross Reference 2 | FAG B71912-C-T-P4S-UL (light preload) |
| Cross Reference 3 | SKF 71912 CD/P4ADGB (light preload) |
A single-row super-precision angular contact ball bearing in the thin ISO 19 section. Bore: 60 mm (2.3622 in). Outside Diameter: 85 mm (3.3465 in). Width: 13 mm (0.5118 in). Contact Angle: 15°. Cage Material: Phenolic. Cage Type: Machined, outer ring guided. Preload: Light. Precision Class: P4 (ISO Class 4, ABEC 7). Seal Type: Open. Bore Type: Straight. Number of Rows: 1. Rolling Elements: Steel balls. Bearing Material: Carbon chrome bearing steel to BS970 534A99/535A99 or SAE 52100.
In the RHP super-precision scheme 7 is a single-row angular contact ball bearing, 9 is ISO dimension series 19, bore code 12 is a 60 mm bore, C is a 15° contact angle, T is a machined laminated phenolic cage, SU is universal face control, L is light preload and P4 is ISO Class 4. The ISO base number for the same envelope is 71912.
Dynamic Load Rating: 19,400 N. Static Load Rating: 18,700 N. Limiting Speed: 24,900 rpm oil/air; 15,400 rpm grease. Maximum Operating Temperature: 120 °C, set by the laminated phenolic cage. Mass: 0.191 kg (0.421 lb).
A 15° contact angle keeps the load line close to radial, which limits centrifugal ball loading and lets the bearing run fast, and the thin 79-series section keeps the outside diameter small for a given bore where a spindle housing is tight. The laminated phenolic cage is light and holds an oil film, so it runs quietly at speed. Light preload adds the least friction heat of the four standard grades while fixing the contact angle and making axial position repeatable; the bearing is preload-set at manufacture rather than clearance-set.
1 Pc. Universal face control single (SU), open on both faces. Universal facing means two pieces of this designation reach the specified light preload as ground, back-to-back, face-to-face or in tandem.
Inner ring abutment diameter d1: 66 mm minimum. Outer ring abutment diameter D1: 79 mm maximum. Outer ring seat diameter D2: 80 mm maximum. Fillet radius r: 1.0 mm minimum. Fillet radius r1: 0.6 mm minimum. Effective Load Centre a: 16.2 mm. Internal free volume: 9.3 cm³. PCD of lubrication jets: 69.0 mm.
Interchanges with NSK 7912CTRSULP4, FAG B71912-C-T-P4S-UL and SKF 71912 CD/P4ADGB, all 60 x 85 x 13 mm, 15°, ABEC 7, light preload. 71912 is the ISO base designation. The 25° build of this size, coded A5 in the current scheme and E in the legacy RHP scheme, is a related size rather than an interchange, and the medium and heavy preload grades are separate parts.
$141.11
255 in stock
$141.11
255 in stock
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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