Motor Starters vs. Contactors vs. Overload Relays: What Each One Does and Why You Need All Three
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Angular contact ball bearing, 85 x 130 x 22 mm, 15° contact angle, ABEC 7 precision, open, on the ISO 7017 envelope. Matched set.
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| MFR / Brand | MRC |
|---|---|
| MPN | 117KRDS |
| GTIN | 097741001564 |
| Model | 117KR DS |
| Bearing Type | Angular Contact Ball Bearing |
| ID | 85 mm |
| OD | 130 mm |
| Width | 22 mm |
| Condition | New |
|---|---|
| Series | 100 (MRC bore-code series) |
| Base Number | 117KR |
| Bore Shaft Size | 85 mm |
| Mpn Variants | 117KRDS, 117 KR DS, 117-KR-DS, 117KR |
| Compatible With Replaces | ISO 7017 envelope, 85 x 130 x 22 mm |
| Arrangement Configuration | Matched set |
| Precision Rating | ABEC 7 |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Internal Clearance | N/A |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Preload | Preloaded (DS, half of a matched pair) |
| Design Units | Metric |
| Part Number | 117KRDS |
| Cross Reference 1 | SKF 7017 CD/P4A |
|---|---|
| Cross Reference 2 | FAG B7017-C-T-P4S |
| Cross Reference 3 | Fafnir 2MM9117WI |
| Cross Reference 4 | MRC 7117KR (related size, same 85 x 130 x 22 mm envelope, MRC 7100K angular contact section) |
MRC 117KRDS precision angular contact ball bearing. Bore: 85 mm. Outside diameter: 130 mm. Width: 22 mm. Contact angle: 15°. Precision: ABEC 7. Open on both faces. ISO equivalent size: 7017.
117: MRC bore code for 85 mm. R: 15° contact angle with a counterbored outer ring. K: extra-light section. DS: half of a matched pair, supplied with preload. Punctuation variants: 117KRDS, 117 KR DS, 117-KR-DS.
A 15° contact angle favours speed and radial stiffness over thrust capacity, which is the standard choice for machine-tool spindles and precision screw drives. The counterbored outer ring accepts a fuller ball complement, which raises radial capacity. ABEC 7 running accuracy holds bore, outer-diameter and raceway runout inside a few microns, which is what keeps a spindle’s tool point where the control thinks it is. A preloaded pair runs with zero axial play and higher stiffness than a clearance-set bearing.
Supplied as a matched set, ground to run together.
Shaft seat to h5 and housing bore to H6 or closer preserve the ABEC 7 running accuracy. Clamping loads are applied evenly across the ring faces so the ground offsets set the preload.
Same-envelope 15° executions: SKF 7017 CD/P4A, FAG B7017-C-T-P4S, NSK 7017CTR, RHP 7017CT, Fafnir 2MM9117WI. Related size: MRC 7117KR, the same 85 x 130 x 22 mm envelope in MRC’s 7100K angular contact section.
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