store Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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2 in stock
Super-precision angular contact ball bearing pair, 150x225x35 mm, 15° contact angle, phenolic outer-ring-guided cage, light preload, ABEC 7 / P4.
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$2,245.18
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| MFR / Brand | NSK |
|---|---|
| MPN | 7030CTDULP4 |
| Model | 7030C-T-DUL-P4 2MM9130WIDUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 150 mm |
| OD | 225 mm |
| Width | 35 mm |
| Series | 70 Series |
|---|---|
| Lubricant | Grease or oil / oil-air |
| Preload | Light (L) |
| Base Number | 7030C |
| Common Misspellings | 7030CTDULP4; 7030CTDLUP4; 703OCTDULP4; 7030CTDUL P4; 7030 CT DUL P4; NSK 7030 CTDULP4 |
| Application Types | Large machine tool spindles; boring mills and vertical turning centres; grinding spindles; precision rotary tables; industrial automation and motion control |
| Overall Width | 35 mm |
| Mpn Variants | 7030CTDULP4; 7030C T DUL P4; 7030-CT-DUL-P4; 7030 C T DUL P4; 7030CTDULP4Y |
| Precision Class | ABEC 7 / P4 |
| Additional Attributes | Effective load centre a: 42.6 mm; permissible axial load Pa: 105 kN; da min: 162 mm; Da max: 213 mm; Db max: 218 mm; ra max: 2 mm; rb max: 1 mm; r min: 2.1 mm; r1 min: 1.1 mm; recommended grease quantity: 23 g per bearing; cage options catalogued: TYN/TYNX polyamide ball-guided, TR/T/TX/TA phenolic outer-ring guided, TSR PPS outer-ring guided, MY brass ball-guided; accuracy grades catalogued: P5, P4, P4Y, P3; preload classes catalogued: EL, L, M, H |
| Closure Type | Open |
| Cage Type | Outer-ring guided |
| Dynamic Load Rating | 190,000 N per bearing |
| Static Load Rating | 168,000 N per bearing |
| Rolling Elements | Ball |
| Item Weight | 4.15 kg (9.15 lb) per bearing |
| Cage Material | Phenolic |
| Number Of Rows | Single Row |
| Bore Type | Straight |
| Snap Ring Included | No |
| Limiting Speed | 6,200 rpm grease; 9,400 rpm oil |
| Harmonization Code | 8482.10.5028 |
| Contact Angle | 15° |
| Mounting Arrangement | Duplex universal pair (DU) |
| Bearing Material | Bearing Steel |
| Cross Reference 1 | SKF 7030 CD/P4A |
|---|---|
| Cross Reference 2 | FAG B7030-C-T-P4S |
| Cross Reference 3 | Timken / Fafnir 2MM9130WI |
| Cross Reference 4 | RHP 7030CTDU |
| Cross Reference 5 | Koyo 7030C |
| Cross Reference 6 | NTN 7030CG/GNP4 |
| Cross Reference 7 | GMN S 6030 C |
| Cross Reference 8 | NSK 7030CTYNDULP4 (sibling, polyamide ball-guided cage, not identical) |
| Cross Reference 9 | NSK 7030CTDUMP4 (sibling, medium preload, not identical) |
NSK 7030CTDULP4 is a universally ground pair of single-row super-precision angular contact ball bearings from the 70 series. Bore Diameter: 150 mm. Outside Diameter: 225 mm. Overall Width: 35 mm. Contact Angle: 15°. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Number Of Rows: Single Row. Bearing Material: Bearing Steel. Series: 70 Series. Base Number: 7030C.
Dynamic Load Rating: 190,000 N per bearing. Static Load Rating: 168,000 N per bearing. Limiting Speed: 6,200 rpm grease; 9,400 rpm oil. Item Weight: 4.15 kg (9.15 lb) per bearing. Load ratings and mass are quoted per bearing, not for the set.
7030 — 70 series super-precision angular contact ball bearing on a 150 mm bore.
C — 15° contact angle.
T — phenolic resin cage, outer-ring guided.
DU — duplex universal pair, ground so the two bearings mount back-to-back, face-to-face or in tandem.
L — light preload class.
P4 — NSK precision grade equating to ABEC 7 / P4.
The 15° contact angle biases capacity toward radial load and lifts the speed ceiling relative to steeper 25° and 30° angles, which is why the C angle dominates machine-tool spindle work. Precision Class: ABEC 7 / P4. Preload: Light (L). Cage Material: Phenolic. Cage Type: Outer-ring guided. Lubricant: Grease or oil / oil-air.
At a 150 mm bore the surface speed at the ball track is already high, so the limiting speeds fall well below those of the smaller sizes in the same series and the light preload class matters more: it keeps frictional heat down where thermal growth in a large spindle would otherwise drive preload upward in service. A phenolic cage guided on the outer-ring land runs quiet and keeps cage mass low at this diameter.
Effective load centre a: 42.6 mm. Permissible axial load Pa: 105 kN. Minimum shaft abutment diameter da: 162 mm. Maximum housing abutment diameter Da: 213 mm. Maximum housing abutment diameter Db: 218 mm. Maximum shaft fillet radius ra: 2 mm. Maximum housing fillet radius rb: 1 mm. Minimum chamfer dimension r: 2.1 mm. Minimum chamfer dimension r1: 1.1 mm. Recommended grease quantity: 23 g per bearing.
Unit Quantity: 2 Pcs. Mounting Arrangement: Duplex universal pair (DU).
Comparable 150x225x35 mm super-precision 15° angular contact bearings are catalogued by other makers as SKF 7030 CD/P4A, FAG B7030-C-T-P4S, Timken/Fafnir 2MM9130WI, RHP 7030CTDU, Koyo 7030C, NTN 7030CG/GNP4 and GMN S 6030 C.
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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