Grove Gear Bravo Aluminum - Manual (Page 5)

Maintenance
Your BRAVO ® reducer has been tested and adjusted at the factory. Dismantling or replacement of components must be done by Factory to maintain
the warranty .
Mounting bolts should be routinely checked to ensure that the unit is firmly anchored for proper operation .
Seals: The BRAVO ® line of speed reducers utilize premium quality seals which are state-of-the-art in sealing technology . Seals are, however, a wear
item and eventually need to be replaced . Replacement can easily be accomplished by following the procedure below .
1 . Remove the worn seal without damaging the shaft surface or the seal bore. This can be done by drilling a .062” diameter hole in the seal
casing (being careful not to drill into the bearing behind the seal). Screw a #10 sheet metal screw into the hole and pry out the seal.
2 . Clean the seal bore of sealant .
3 . Before installing the new seal, use electrical tape to cover any keyways on the shaft to prevent seal lip damage .
4 . Grease the seal lips with bearing grease and apply a sealant to the seal bore .
5 . Slide the seal onto the shaft being careful not to fold the inner lip over on any shaft steps .
6 . Press the seal into its bore with a sleeve that presses on the seal casing, being careful to keep the seal square in its bore .
If seal leakage has resulted in the loss of a significant amount of lubricant, it may be necessary to add more . Contact Factory for more detail .
Always check for proper oil level after filling. Do not overfill or underfill with oil, or injury to personnel, reducer, or other equipment
may result .
Do not mix different oils in the reducer.
INSTALLATION
INSTRUCTIONS
There are several possible methods to retain
a drive shaft into the hollow bore of a gear reducer.
A few common options are listed below:
l
Retain drive shaft with a retaining ring (illustrated above)
l Retain drive shaft with a locknut
l Retain drive shaft with a thrust plate and fastener
l Retain drive shaft with a collar and setscrew
l Retain drive shaft with a recessed plate and fastener
SPACER
W
BD
DOUBLE ENDED EXTENSION
30° REF
.005/.010
SEE UNDERCUT
DETAIL
UNDERCUT DETAIL
.030R
E
D
C
L
K
J
SECTION: X-X
I
H
G
E
F
A
B
.04x45°
CHAMFER
(2 PLCS - 520, 525 & 534)
DRIvEN SHAFT RECOMMENDATIONS
X
X
Gear Reducer Drive Shaft Recommendations
DRIVEN SHAFT RECOMMENDATIONS l HOLLOW BORE IN INCHES
Dimensions - Inches
* Dimension “W” refers to the width of spacer used.
Retaining Ring Keyway Double Extension Details
Series
A B C D F Groove
Mfg. No.
I
+/- 0.0025
G J H +/- 0.0005 E K L BD W *
+0.005/ - 0.000 +/- 0.002 (Waldes Truarc) +/- 0.0025 +/- 0.001 +/ 0.0025 +/- 0.001
518 2.80 2.6445 0.43 N/A 0.18 0.086 0.703 5160-75 0.88 0.749 1.15 0.6365 0.1875 3.0755 0.430
520 3.50 3.2725 0.30 3.00 0.23 0.086 0.937 5160-98 1.12 0.999 1.15 0.8565 0.250 3.5735 0.300
525 5.00 4.8225 0.13 4.25 0.22 0.103 1.058 5160-112 1.25 1.124 1.53 0.9785 0.250 4.9535 0.130
534 5.65 5.4315 0.53 5.00 0.28 0.120 1.405 5160-150 1.75 1.499 1.65 1.2815 0.375 5.9625 0.530
DRIVEN SHAFT RECOMMENDATIONS l HOLLOW BORE IN MILLIMETERS
Dimensions - MM
* Dimension “W” refers to the width of spacer used.
Retaining Ring Keyway Double Extension Details
Series
A B C D F Groove
Mfg. No.
I
+/- 0.064
G J H
- 0.005/ E
K L BD W *
+0.12/ - 0.00 +/- 0.05 (Waldes Truarc)
-0.020
+/- 0.05 + 0.015/-0.000 +/ 0.064 +/- 0.02
512 60.5 56.223 10 N/A 5 1.1 13 5100-55 19.1 14 20.2 10.8 5 66.383 10.16
518 71.1 67.170 11 N/A 5 1.4 16 5160-66 22.4 18 30.2 14.5 6 78.118 10.92
520 88.9 83.120 8 76.2 5 2.3 23.5 5160-98 28.4 25 30.2 21.0 8 90.767 7.62
525 127.0 122.492 3 108.0 8 2.6 26 5160-106 31.8 28 40.2 24.0 8 125.819 3.30
534 143.5 137.960 14 127.0 9 2.6 32.8 5160-137 44.5 35 50.2 30.0 10 151.448 13.46
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