Emerson 3000 installation instructions 1.5Mounting Configuration with Bushing on Load

1.5Mounting Configuration with Bushing on Load

Side of Reducer and without Stabilizer Ring

H

K

Endcap

Driven

Shaft Keyseat

MC

Figure 1-5

Table 1-5  Dimensions for Configuration with bushing on Load Side and no Stabilizer Ring

	Bolt	Minimum Shaft	Minimum Key
		Mounting	Connection
Gear	Clearance
		Length	Length
Frame
	MC	H	K
31	1.50	4.38	2.88
32	1.88	6.25	4.38
33	1.88	6.25	4.38
33A	1.88	6.50	4.63
34	1.88	6.5	4.63
35	1.88	7.5	5.63
36	1.88	8	6.13
37	2.25	9.75	7.38
38	2.75	11.31	7.38

1.5.1  For Type 1 bushings which require an external key and a shaft key:  Install the key (supplied with the bushing) in the external keyseat of the bushing as shown in Figure 1-1. Install the shaft key (not supplied) in the shaft keyseat and retain to prevent movement. Install the bushing onto the shaft, flanged end first, align the bushing keyway with the shaft key and position the bushing over the key.

Note:  Key length must be sufficient to engage the full length of the bushing.  The shaft must engage the full length of the bushing.

1.5.2  For Type 2 bushings which require one through key: Install the bushing on the shaft, flanged end first. Align the keyway in the bushing with the keyseat in the shaft and install the shaft key.  Position the shaft key flush against the inside flange surface of the bushing.  See Figure 1-2 Shaft Key and Bushing Location.

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.

Note:  The shaft must be engaged the full length of the bushing.

1.5.3  On the side opposite the driven shaft entry, thread the bushing ring onto the hollow quill until the bushing ring is flush with the end of the hollow shaft. Rotate the gear unit input to align the keyway in the hollow quill with the bushing/shaft key. Position the reducer on the shaft with the bushing ring toward the bushing.

1.5.4  Thread the end cap and the dirt cover (not used if driven shaft extends beyond the end of the hollow quill) onto the hollow quill until it bottoms out. Tighten the setscrew to the recommended torque. See bolt torque specifications Table 1.2.5.

1.5.5  Rotate the bushing ring clockwise until the tapped holes align with the drilled holes in the bushing flange. Prior to tightening the cap screws, make sure the bushing key is as close as possible to the inside flange of the bushing as shown in Figure 1-2 and the bushing is positioned on the shaft as required in Table 1-5. Dimensions for rear mounting configuration with the stabilizer ring.

1.5.6Install the bushing cap screws and tighten all the cap screws evenly around the bushing flange to the required torque. See bolt torque specifications Table 1.2.5.

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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