Starting .......................................................................................................................................... 0.3 max. above average running torque
Running Torque
Single or Dual Section (A & R Bushings) ...................................................................................... 0.21 to 1.06 N-cm (0.3 to 1.5 oz.-in.)
Single or Dual Section (C & U Bushings) ..................................................................................... 0.14 to 1.06 N-cm (0.2 to 1.5 oz.-in.)
Mounting .............................................................................................................................................1.7-2.0 N-m (15-18 lb.-in.) maximum
Variation ......................................................................................................................0.35 N-cm (0.5 oz.-in.) maximum in 45 ° shaft travel
Weight (Single Section, Metal Bushing) .............................................................................................................................12.7 grams nominal
Terminals .................................................................................................................................Printed circuit terminals, J-Hooks or solder lugs
Soldering Condition ............................................Recommended hand soldering using Sn95/Ag5 no clean solder, 0.025 ˝ wire diameter.
Maximum temperature 399 °C (750 °F) for 3 seconds. No wash process to be used with no clean flux.
Marking ............................................................................Manufacturer’s trademark, date code, resistance, manufacturer’s part number.
Ganging (Multiple Section Potentiometers) ............................................................................................................................ 2 cups maximum
Hardware.....................................One lockwasher and one mounting nut is shipped with each potentiometer (Bushing A: H-37-2 & H-38-2;
NOTE: Performance specifications do not apply to units subjected to printed circuit board cleaning procedures.
1
Electrical
specifications tested at 200 RPM, at room ambient: +25 °C nominal.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Model 91, 92, 93, 94 & 95 – 5/8 ˝ Square Single-Turn Panel Control
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
3
2
Model 91, 92, 93, 94 & 95 – 5/8 ˝ Square Single-Turn Panel Control
Product Dimensions
Plastic
Shaft
Styles
SHAFT TYPE "B"
(USES BUSHING A)
1.60+.38/-.00
(.063+.015/-.000)
6.32+.000/-.152
(.249+.000/.006)
DIA.
22.23
(.875)
SHAFT TYPE "D"
(USES BUSHING C)
3.16+.00/-.15
DIA.
(.1245+.000/-.006)
SHAFT TYPE "T"
(USES BUSHING U)
1.50 ± .25
(0.06 ± .001)
.79
(0.03)
STD. LENGTHS:
16.0
(.630)
22.0
(.866)
1.19
(.047)
STD. LENGTHS:
15.88
19.05
(.625) (.750)
12.70
(.500)
STD. LENGTHS:
12.70
15.88
19.05
(.500) (.625) (.750)
3.988 +0.000/-0.051
(.157 +.000/-.002)
DIA.
SHAFT TYPE "C"
(USES BUSHING A)
11.18 ± .38
(.440 ± .015)
SHAFT TYPE "R"
(USES BUSHING R)
1.80 ± .25
(0.07 ± .001)
5.994 +0.000/-0.051
(.236 +.000/-.002)
DIA.
1.00
(.04)
STD. LENGTHS:
16.0
(.630)
22.0
(.866)
SHAFT TYPE "W"
(USES BUSHING A)
14.27 ± .25
(.562 ± .010)
6.31+.025/-.051
(.2485+.001/.002)
DIA.
STD. LENGTHS:
25.40
(1.00)
5.49
(.216)
STD. LENGTHS:
19.05
22.23
(.750) (.875)
6.30+.000/-.152
(.248+.000/.006)
DIA.
48 TOOTH
Metal
Shaft
Styles
SHAFT TYPE "A"
(USES BUSHING A)
6.32+.010/-.025
(.2490+.0004/.0010)
DIA
SHAFT TYPE "H"
(USES BUSHING A)
“F” ± .38
(“F” ± .015)
6.32+.010/-.025
(.2490+.0004/.0010)
DIA
5.486 ± .051
(.216 ± .002)
25.4
(1.000)
SHAFT TYPE "S"
(USES BUSHING R)
“F” ± .381
(“F” ± .015)
6.000+.000/-.035
(.2362+.0000/.0014)
DIA
3.988 ± .076
(.157 ± .003)
STD. LENGTHS:
16.0
(.630)
22.0
(.866)
STD. LENGTHS:
12.70
(.500)
15.88
(.625)
19.05
(.750)
22.23
(.875)
STD. LENGTHS:
19.05
(.750)
7.95
(.313)
22.23
(.875)
11.13
(.438)
FLAT LENGTH “F”:
FLAT LENGTH “F”:
6.99
(.275)
12.98
(.511)
SHAFT TYPE "E"
(USES BUSHING C)
0.79 ± 0.25
(.031 ± .010)
0.79
(.031)
STD. LENGTHS:
12.0
(.500)
16.0
(.625)
19.0
(.750)
3.16
(.1245)
DIA
SHAFT TYPE "J"
(USES BUSHING R)
1.80 ± 0.25
(.071 ± .010)
6.00+.000/-.035
(.2362+.0000/.0010)
DIA
SHAFT TYPE "V"
(USES BUSHING U)
1.50 ± 0.25
(.059 ± .010)
0.79 ± 0.13
(.031 ± .054)
STD. LENGTHS:
16.0
(.630)
22.0
(.866)
3.99+.000/-.035
(.1571+.0000/.0010)
DIA
1.00 ± 0.13
(.039 ± .054)
STD. LENGTHS:
SHAFT TYPE "G"
(USES BUSHING A)
1.60+.38/-.00
(.063+.015/-.000)
6.32+.010/-.025
(.2490+.0004/.0010)
DIA.
1.194
(.047)
12.70
(.500)
STD. LENGTHS:
15.88
19.05
(.625) (.750)
22.23
(.875)
16.0
(.630)
22.0
(.866)
TOLERANCES EXCEPT AS SHOWN: .XX = ±
.02
(.050)
.005
.XXX = ±
(.127)
.0005
.XXXX = ±
(.0127)
DIMENSIONS:
MM
(INCHES)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Model 91, 92, 93, 94 & 95 – 5/8 ˝ Square Single-Turn Panel Control
Suggested Panel Layout
OPTIONAL:
OPTIONAL:
7.75
(.305)
DIM A
Hardware
LOCKWASHER H-37-1
6.6
(.26)
NUT H-38-1
9.53 +0/-0.38
(.375 +0/-.015)
2.36 ± 0.25
(.093 ± .01)
2.79
DIA.
(.110)
1/4-32 UNEF
BUSHING
A
C
R
U
DIMENSIONS:
DIM A
9.91
(.39)
12.07 ± 0.25
(.475 ± .01)
LOCKWASHER H-37-2
9.58 ± 0.36
(.377 ± .014)
0.64 ± 0.05
(.025 ± .002)
NUT H-38-2
11 +0/-0.43
(.433 +0/-.017)
30 ° ± 5 °
TYP.
6.73
(.265)
10.5
(.413)
7.5
(.295)
MM
(INCHES)
2.36 ± 0.25
(.093 ± .01)
3/8-32 NEF-2B
12.52 ± 0.36
(.493 ± .014)
LOCKWASHER H-37-3
7.24 ± 0.38
(.285 ± .015)
0.56 ± 0.05
(.022 ± .002)
NUT H-38-8
10 ± 0.2
(.394 ± .008)
14.66 +0/-0.43
(.577 +0/-.017)
30 ° ± 5 °
Date Code Description
YYWWM
M = COUNTRY OF MANUFACTURE
(MEXICO)
WW = WEEK NUMBER
YY = LAST TWO DIGITS OF YEAR
MANUFACTURED
2 ± 0.2
(.079 ± .008)
M7 x .75
12.45 ± 0.38
(.490 ± .015)
LOCKWASHER H-37-4
10.41 ± 0.38
(.410 ± .015)
0.71 ± 0.18
(.028 ± .007)
NUT H-38-9
14 ± 0.2
(.551 ± .008)
30 ° ± 15 °
TYP.
2.9 ± 0.2
(.114 ± .008)
M10 x .75
15.11 ± 0.51
(.595 ± .020)
0.56 ± 0.05
(.022 ± .002)
30 ° ± 15 °
TYP.
DIMENSIONS:
MM
(INCHES)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
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