MM FLANGE - NEMA 56C Motor Mount (Face Mount)


Download Whip plug-in to view drawings within the instructions

We recommend downloading the whip31.exe from the ConXion location
** If Printing: some drawings are mentioned more than once in the instructions - print one time**



The mounting of the MM Flange - NEMA 56C Motor Mount (Face Mount) is such that the 4.500" dia. pilot of the sensor mounts into the mating counter bore of the machine requiring no alignment. The sensor can be replaced with a spare in a matter of minutes without any adjustment. The MM Flange mount is totally interchangeable with the following sensors: CC3820R, CC3822R, C3825R, CC3820T, CC3822T, CC450T, CC3820A/RVDT, CC450A/RVDT, CC290T, CC292T, CC290R, CC400T, CC400AE, CC350T, CC350R, and CC450AEMT.


1.1 Prepare the counter bore surface by removing any dirt, debris, burrs, or other protrusions from the area where the flange surface will come in contact. A wire wheel, wire brush, sandpaper, and files are tools needed for this procedure.

1.2 Clean any dirt or debris from the MM Flange mounting surface and pilot.


Reference drawing 160A9006

2.1 Slide coupling onto machine shaft. If possible, slide so that entire coupling is on the machine shaft. For larger dia. shafts push unto shaft as far as possible.

Note: If coupling supplied by CCI, reference Table 1, drawing 62220A1004 for coupling torque requirements.

2.2 Match the flange pilot and machine counter bore together. The pilot should slide freely into the counter bore. Mount sensor to machine with (4) 3/8-16 hardware, not supplied and torque accordingly. Do Not force the pilot into the counter bore.

2.2.1 If flange pilot and machine counter bore do not slide freely together, repeat section 1. If after repeating preparation procedure they still will not mate, measure both mounting surfaces. If there is a dimensional inconsistency with a CCI product, please contact CCI immediately.

2.2.2 If flange pilot and machine counter bore are very loose fitting, where sensor can be shifted off center, measure both mounting surfaces. If there is a dimensional inconsistency with a CCI product, please contact CCI immediately. It is important to have a good fit between sensor and machine. If a problem exists with the mounting counter bore, it should be corrected in order to maintain sensor integrity and prolong sensor life.

2.3 Slide coupling from machine shaft onto sensor shaft, approximately centered between the machine and sensor shafts.

2.3.1 If the coupling does not slide onto the sensor shaft, repeat section 1, and continue through section 2. If problem stills exists, check machine shaft and mounting surface. If problem is suspect of CCI supplied equipment, please contact CCI immediately.

2.3.2 Torque machine shaft coupling and sensor shaft coupling, per coupling manufacture's requirements, for CCI couplings, reference Table 1.

2.4 The MM Flange and the sensor are two separate parts. If needed the MM Flange can be removed from the sensor and install on any of the above listed sensors. This is done by removing with a 3/16" hex key the (4) 1/4-20 socket head cap screws. Install the MM Flange on the sensor with same screws and torque 150-200 in-lbs.


Carlen Controls, Inc. warrants its products to be free from defects caused by faulty materials or poor workmanship for a minimum period of one year from the date of shipment from Carlen Controls.

This warranty does not cover defects or damages caused by service or repair performed by anyone other than Carlen Controls. Do not attempt to open covers or housings where fasteners have been sealed.

Carlen Controls’ liability is limited to replacing, repairing or issuing credit at its option, for any products which are returned by the original purchaser during the warranty period. Carlen Controls makes no warranty that its products are fit for the use or purpose to which they may be put by the buyer, whether or not such use or purpose has been disclosed to Carlen Controls in specifications or drawings previously or subsequently provided, or whether or not Carlen Controls’ products are specifically designed and/or manufactured for the buyer’s use or purpose. Carlen Controls’ liability on any claim for loss or damage arising out of the sale, resale or use of any of its products shall in no event exceed the selling price of the unit.

Carlen Controls warranty covers only products manufactured by Carlen Controls. Products used in conjunction with Carlen Controls products but supplied by another manufacturer; such as Inland Motors’ tachometer and Hubbell overspeed switches, are covered by original manufacturer’s warranty.

Return Products Procedure

No products may be returned, whether in warranty or out of warranty, without first obtaining approval from Carlen Controls. Any returned product (s) must be accompanied by a return authorization number. Products must be returned, prepaid, to Carlen Controls (no COD or Collect Freight accepted). The status of any product returned later than (3) days after the issuance of a return authorization number will be subject to review.

Returned Product Warranty Determination

After Carlen Controls’ examination, warranty or out-of-warranty status will be determined. If upon examination a warranted defect exists, then the product (s) will be repaired at no charge and shipped, prepaid, back to the buyer.

Return Product Non-Warranty Determination

After Carlen Controls’ examination, the buyer shall be notified of the repair cost. At such time the buyer must issue a valid purchase order to cover the cost of the repair and freight, or authorize the product (s) to be shipped back as is, at the buyer’s expense. Failure to obtain a purchase order number or approval within (30) days of the notification will result in the product(s) being returned as is, at the buyer’s expense.

Rush Service

At times, the buyer may desire to expedite a repair. Regardless of warranty or out-of-warranty status, the buyer must issue a valid purchase order to cover the added rush cost service. Rush service is subject to Carlen Controls’ approval.

Back to Top

Back To Installation Page