Emerson 3000 Mounting Configuration with Bushing Outboard of Load, Length Frame, Clearance

1.3  Mounting Configuration with Bushing Outboard of Load

	H
	K
Bushing	MC	Endcap
Ring

Driven

Shaft

Driven

Shaft Key

Stabilizer Ring

Bushing

Figure 1-3

Table 1-3  Dimensions for Mounting Configuration with Bushing Outboard of Load

	End cap	Minimum Shaft	Minimum Key
		Mounting	Connection
Gear	Clearance
		Length	Length
Frame
	MC	H	K
31	0.85	8.23	2.88
32	0.97	9.28	4.38
33 1	0.97	9.21	4.38
33A	1.03	11.16	4.63
34	1.03	11.34	4.63
35	1.21	12.23	5.63
36	1.31	16.75	6.13
37	1.44	18.08	7.38
38	1.69	18.43	7.38

1This design is replaced by 33A design effective Jan. 2010

1.3.1  On the input shaft side, thread the bushing ring onto the hollow reducer quill until the bushing ring is flush with the end of the reducer quill shaft.

1.3.2  Place the end cap on the driven shaft with the threaded bore facing the end of the shaft. Slide the stabilizer ring on the driven shaft with the small end of the taper toward the end of the shaft.

1.3.3  Install Key(s) Type 1 Bushing (2 keys):

•Install the external bushing key into the bushing as shown in Figure 1-1 (external bushing key is supplied with the bushing kit)

•Install the driven shaft key (customer supplied) into the driven shaft keyseat. Position the end of the driven shaft key even with the end of the driven shaft. Retain this key to prevent movement.

1.3.4  Install Reducer

Type 1 Bushing

•Mount the reducer on the driven shaft with the bushing ring facing outward toward the end of the driven shaft

•Locate the reducer on the driven shaft such that approximately

.50 inch of the driven shaft extends out beyond the end of the reducer quill.

•Start the bushing (small end first) by aligning the keyway in the bushing with the key previously installed in the driven shaft.

•Continue moving the bushing into position and rotate the input of the reducer as required to align the external bushing key with the keyway in the reducer quill.

•Rotate the bushing ring clockwise to align the clearance holes in the bushing with the threaded holes in the bushing ring. (This will require less than 1/2 turn of the bushing ring).

•Install the bushing cap screws and hand tighten. Reposition the reducer until the end of the driven shaft is even with the end of the bushing ring.

•Slide the stabilizer ring into the reducer quill and thread the end cap on hand tight.

•Tighten the bushing cap screws evenly around the bushing flange to the recommended torque as shown Table 1.2.5. See bolt torque specifications section.

•Tighten the end cap again until hand tight. Tighten the setscrew in the end cap to the recommended torque from Table 1.2.5.

Type 2 Bushing

•Mount the reducer on the driven shaft with the bushing ring facing outward toward the end of the driven shaft.

•Rotate the input of the reducer as required to align the external bushing key with the keyway in the reducer quill.

•Locate the reducer on the driven shaft such that approximately

.50 inch of the driven shaft extends out beyond the end of the reducer quill.

•Start the bushing (small end first) by aligning the keyway in the bushing with the key previously installed in the driven shaft.

•Rotate the bushing ring clockwise to align the clearance holes in the bushing with the threaded holes in the bushing ring. (This will require less than 1/2 turn of the bushing ring).

•Install the bushing cap screws and hand tighten. Reposition the reducer until the end of the driven shaft is even with the end of the quill.

•Slide the stabilizer ring into the reducer quill and thread the end cap on hand tight.

•Tighten the bushing cap screws evenly around the bushing flange to the recommended torque as shown in Table 1.2.5.

•Tighten the end cap again until hand tight. Tighten the setscrew in the end cap to the recommended torque from Table 1.2.5.

Note:  The key length must be sufficient to engage the full length of the bushing. The shaft must engage the full length of the reducer shaft (Refer to “H” in Figure 1-3).

Note:  There are three (3) series of bushing keys used in the

Type 2 bushing system: rectangular, square and offset.  In most cases, the key supplied will be rectangular or offset.  Use caution when installing rectangular keys as some may visually appear square.  The key should install in the bushing keyway with a sliding type fit.  The key in the driven shaft keyseat should be retained to prevent movement.

WARNING!  The cap screws must thread into the bushing ring and not the bushing. Threaded holes in the bushing are for removal only.  If assembled incorrectly, equipment failure and personal injury may result.

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