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Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
If you pulled a bearing off general industrial equipment at random, there’s a good chance
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1 in stock
Super-precision angular contact spindle bearing, 65x100x18 mm slim section; 15° contact angle, universally ground with medium preload, ABEC 7 / P4, supplied as half of a duplex pair. For machine-tool spindles, grinders and high-speed motion control.
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| MFR / Brand | RHP |
|---|---|
| MPN | 7013CTDUMP4-1/2PR |
| Model | 7013 C T DUM P4 / B 7013 X2 TA DUM EP5 / 2MM9113WI CR DUM |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 65 mm |
| OD | 100 mm |
| Width | 18 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7000 |
| Preload | Medium |
| Base Number | 7013 (ISO) |
| Common Misspellings | 7013CTDUMP4 1/2PR; 7013CTDUMP4-12PR; 7013-C-T-DUM-P4; 7013CTDUM P4; RHP 7013 CTDUM; R.H.P. 7013CTDUMP4; 7013CTDULP4 |
| Application Types | Machine-tool spindles; precision grinding spindles; high-speed motion control; rotary tables and indexers; instrument spindles where axial space is limited |
| Bore Shaft Size | 65 mm (2.5591 in) |
| Mpn Variants | 7013CTDUMP4-1/2PR; 7013CTDUMP4; 7013-C-T-DUM-P4; 7013CTDUM; B 7013 X2 TA DUM EP5; 7013C |
| Manufacturer Status | RHP acquired by NSK; RHP and NSK designations cross-reference directly. Made in England |
| Compatible With Replaces | RHP / NSK-RHP 7013CTDUMP4 halves; Timken 2MM9113WI CR DUM |
| Rolling Elements | Ball |
| Number Of Rows | 1 (single bearing, half of a pair) |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Part Number | 7013CTDUMP4-1/2PR |
| Cross Reference 1 | Timken 2MM9113WI CR DUM - 15 deg, P4, medium preload |
|---|---|
| Cross Reference 2 | NSK 7013CTYNDUMP4 - polyamide cage |
RHP 7013CTDUMP4-1/2PR super-precision angular contact ball bearing, one half of a factory universally ground duplex pair, in the 65 mm bore x 100 mm outside diameter x 18 mm width envelope, the ISO 7013 size. Bore Diameter: 65 mm. Outside Diameter: 100 mm. Overall Width: 18 mm. Contact Angle: 15°. Preload: Medium. Precision Class: P4 (ABEC 7). Number Of Rows: 1. Unit Quantity: 1 Pc.
7013 — ISO 70 series angular contact bearing, bore code 13 = 65 mm bore.
C — 15° contact angle. The B-series marking X2 states the same angle.
T — machined cage.
DUM — duplex universal grinding, medium preload.
P4 — ISO class 4, equal to ABEC 7.
-1/2PR — one half of a pair.
Unit Quantity: 1 Pc. One bearing from a factory duplex pair. Universal grinding lets any two matched halves of the same designation and preload class arrange back-to-back (DB), face-to-face (DF) or in tandem (DT) at the specified preload.
Medium preload sits between light and heavy, giving more axial rigidity and tighter shaft location than light without the heat generation that limits heavy preload at high speed. The 18 mm width on a 65 mm bore makes this a slim-section spindle bearing, chosen where axial space is tight. Typical duty is machine-tool spindles, precision grinders, high-speed motion control and rotary tables.
The carton also carries the designation B 7013 X2 TA DUM EP5. Cross-references: Timken 2MM9113WI CR DUM (15°, P4, medium preload); NSK 7013CTYNDUMP4 (polyamide cage).
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