User guide

4
1-4. Dimensions
Note: Ball nut must be kept from rotating to prevent it
from self-lowering.
Worm and gear set is not self-locking.
Use brake on worm shaft or motor.
Housing dimensions and base configurations vary.
*1˝ Lead Screw Models
Note: Dimensions are subject to change without notice.
All dimensions in inches unless otherwise specified.
Table 3. Upright Models
Model Number
Ratin
g
Drawing
Ref.
ABCD EFGH I J KL M
UM-28632 1/2 TON 28631 RAISE + 2 5/8 2 3/8 C 0 .437 1.740 .530 2.600 1˝ Sq. .797 .822 4 Holes - 17/64 Dia. On 2 3/32 Dia. B.C.
UM-9803 &
KUM-2803
2 TON
9802 &
2802
RAISE + 3 1/16 1 1/8 4 1/16 C 0 .750 2.377 .630 3 1/4 1.500 Sq. 1.194 1.104 4 Holes - 17/64 Dia. On 2 3/4 Dia. B.C.
UM-98031*
KUM-28031*
2 TON
9802 &
2802
RAISE + 3 11/16 1 1/8 4 1/16 C 0 .750 3.030 .630 4 13/64 1.500 Sq. 1.194 1.104 4 Holes - 17/64 Dia. On 2 3/4 Dia. B.C.
UM98004 &
KUM-28004
3 TON 28003 RAISE + 3 3/4 1 1/8 4 1/16 4 1/2 0 .750 3.395 .832 4 15/16 2.125 1.386 1.587 4 Holes - 25/64 Dia. On 3 7/16 Dia. B.C.
UM-9806 5 TON 9805 RAISE + 4 5/8 1 5 1/4 C 0 1.000 4.333 .895 4 15/16 2.625 1.690 1.981 4 Holes - 17/32 Dia. On 4 1/16 Dia. B.C.
UM-98061* 5 TON 9805 RAISE + 4 1 5 1/4 C 0 1.000 3.648 1.020 4 15/16 2.625 1.720 1.718 4 Holes - 17/32 Dia. On 4 1/8 Dia. B.C.
UM-9811 10 TON 9810 RAISE + 6 1 5 5/8 C 0 1.000 4.333 .895 4 15/16 2.625 1.690 1.981 4 Holes - 17/32 Dia. On 4 1/16 Dia. B.C.
UM-98111* 10 TON 9810 RAISE + 5 1 5 5/8 C 0 1.000 3.648 1.020 4 15/16 2.625 1.720 1.718 4 Holes - 17/32 Dia. On 4 1/8 Dia. B.C.
AUM-9821 20 TON 9820 RAISE + 8 2 1/2 7 1/8 8 1/8 1 3/4 1.750 6.706 1.582 5 3/8 3.375 2.272 2.561 6 Holes - 21/32 Dia. On 4 3/8 Dia. B.C.
UM-9826 25 TON 9825 RAISE + 10 2 1/4 8 7/8 10 1/2 2 2.250 9.395 2.020 7 3/8 4.751 3.076 3.349 8 Holes - 25/32 Dia. On 6 1/4 Dia. B.C.
UM-2861* 50 TON 2860 RAISE + 15 3 1/4 10 7/8 1 2 3/4 3.250 12.625 2.020 9 3/4 5.880 3.756 4.029 6 Holes - 1 1/32 Dia. On 8 Dia. B.C.