Emerson 3000 Finished Bore Mounting, Mounting Of Reducer with Finished Bore Shaft

Finished Bore Mounting

1.6  Mounting Of Reducer with Finished Bore Shaft

1.6.1  Check the internal bore of the reducer and make sure the snap ring and washer are in the end of the shaft bore opposite the entry side of the driven shaft.

1.6.2  Check the driven shaft to make sure it is free from burrs and any rust preventative coating.  Lubricate the driven shaft to ease mounting with reducer. (Anti-Fretting grease is recommended only for finished bore designs). A lifting lug is only for lifting the weight of the reducer/gearmotor.

WARNING!  (Do not use the lifting lug on the gear housing to lift additional attached assemblies to avoid overloading the lifting lug). Never lift gear unit by its output shaft.

1.6.3  Check the driven shaft to ensure the end is tapped. Install the shaft key in the keyseat.

1.6.6  Replace the threaded rod with the bolt that is supplied with the OtN unit.  Thread it into the driven shaft and tighten to the required torque.  See bolt torque as shown in Table 1.2.5.

1.6.7  Install the hollow shaft cover onto the gear housing opposite the driven shaft with the two (2) screws provided with the cover.

1.6.8  Drive Shaft Recommendations - Its best to use the keeper bolt to pull the driven shaft into the quill up against a shoulder on the driven shaft.

NOT

SUPPLIED

1.6.4  Rotate the OtN input until the hollow output shaft is aligned with the key in the driven shaft.

1.6.5  The OtN gear shaft is mounted on the driven shaft using a threaded rod, and screwed into the shaft.

By then threading a nut down onto the washer in the reducer shaft, the shaft is smoothly inserted into the cylindrical bore of the reducer shaft.

MOUNTING

1.7  Dismounting of the Reducer from driven shaft

1.7.1  Secure the reducer weight.

1.7.2  Thread in a long bolt that has the same thread design as the threaded core of the reducer shaft’s washer (see Table 7-1 below).  By tightening down that bolt, the driven shaft will be separated smoothly from the reducer shaft bore.

Key

EH

NOT SUPPLIED

UF U

UY

Output Shaft

M	MH
		REMOVAL
	VG

Gear	Version			Reducer Shaft				Driven Shaft		Keeper Washer
Frame		EH	U	UF	UY	VG	MH	Key 1	M (inches)	Thread UNC
31	S2	5.12	1.250	1.77	1.372	4.31	0.37	1/4 x 1/4 x 1-1/2	7/16-14 x 1.00	5/8
32	S2	5.94	1.375	1.96	1.523	5.06	0.37	5/16 x 5/16 x 1-13/16	1/2-13 x 1.00	5/8
	S3	5.94	1.250	1.96	1.372	5.19	0.37	1/4 x 1/4 x 1-13/16	7/16-14 x 1.00	5/8
33	S2	6.94	1.500	2.16	1.674	5.96	0.49	3/8 x 3/8 x 2-1/4	5/8-11 x 1.75	3/4
34	S2	8.97	2.000	2.56	2.210	7.44	0.72	1/2 x 7/16 x 2-5/8	5/8-11 x 1.75	3/4
35	S2	9.66	2.375	3.54	2.638	8.15	0.85	5/8 x 5/8 x 3-3/8	3/4-10 x 2.0	7/8
36	S2	12.44	2.750	3.93	3.037	10.89	1.23	5/8 x 5/8 x 5-1/2	3/4-10 x 2.0	1
37	S2	13.59	3.625	4.72	4.019	11.9	1.23	7/8 x 7/8 x 5-1/2	3/4-10 x 2.0	1
38	S2	13.74	4.00	5.50	4.316	11.69	1.58	1 x 1 x 6	1-8 x 2.5	1.25

1the key for the frame 34 is supplied by Browning

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