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HMI Panels and PLC Modules: What They Do and How to Match a Replacement
When an HMI panel goes dark or a PLC module stops communicating, the machine it
Availability:
2 in stock
Angular contact ball bearing matched duplex set, 45 x 75 x 16 mm, 15° contact angle, counterbored outer ring, open, straight bore, ISO 7009 envelope.
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$114.04
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| MFR / Brand | MRC |
|---|---|
| Model | 109KRDS |
| Bearing Type | Angular Contact Ball Bearing |
| ID | 45 mm |
| OD | 75 mm |
| Width | 16 mm per bearing |
| Condition | New – Open box |
|---|---|
| Base Number | 109KR (ISO 7009 envelope) |
| Industry Terms | Angular contact ball bearing; matched duplex set; precision spindle bearing; Marlin Rockwell; 7009 |
| Common Misspellings | 109KRD5; 109KDRS; 109 KR DS; MCR 109KRDS |
| Condition Note | MADE IN USA NOS 3MM209WIDUM |
| Bore Shaft Size | 45 mm |
| Mpn Variants | 109KRDS; 109 KRDS; 109-KR-DS; 109KR; 3MM209WIDUM (carton marking) |
| Arrangement Configuration | Matched duplex set, ground preload |
| Series | MRC 100 light section, R-type (ISO 70 series) |
| Number Of Rows | 1 per bearing |
| Bore Type | Straight, counterbored outer ring |
| Contact Angle | 15° |
| Part Number | 109KRDS |
| Cross Reference 1 | SKF 7009 CD - 15 deg |
|---|---|
| Cross Reference 2 | FAG B7009-C - 15 deg |
| Cross Reference 3 | NSK 7009C - 15 deg |
MRC 109 KRDS angular contact ball bearing, supplied as a matched duplex set. Bearing type: Angular contact ball bearing. Bore: 45 mm. Outside Diameter: 75 mm. Overall Width: 16 mm per bearing. Contact Angle: 15°. Bore Type: Straight. Closure Type: Open, both faces. Number Of Rows: 1 per bearing. Rolling Elements: Ball. The envelope corresponds to an ISO 7009.
1 — MRC 100 light-section angular contact block, matching the ISO 70 dimension series.
09 — bore code giving Bore: 45 mm.
KR — R-type execution, counterbored outer ring, Contact Angle: 15°. The counterbore admits the full ball complement from one side and sets the low-angle raceway geometry.
D — matched duplex, ground as a set so the bearings share load and hold their preload as supplied.
Contact Angle: 15°. The shallow angle favours speed and radial stiffness while still locating the shaft axially, which is the combination machine-tool spindles, pump shafts and gearbox input positions are built around. Each bearing runs its ball complement on raceways offset from the radial plane, carrying radial load together with thrust in one axial direction. Arrangement / Configuration: matched duplex set, ground as a unit so preload is set without shimming.
Matched duplex set, kept together as a unit and installed as supplied. Open on both faces, straight bore.
Straight bore on an interference-fit shaft seat, outer rings located in a bored housing. The high shoulder is the thrust face and the low face carries the counterbore, so orientation on assembly sets the direction of thrust support. The ground offset closes when the set is clamped through both inner rings and both outer rings together.
The 45 x 75 x 16 mm envelope at a 15° contact angle corresponds to the ISO 7009 C executions — SKF 7009 CD, FAG B7009-C and NSK 7009C. A 7009 AC or 7009 B execution shares the same seats at a steeper contact angle and is a related size rather than an interchange.
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