Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Optical and Mechanical
Encoders
Mechanical Encoders
SERIES 25
Multi-Deck
FEATURES
• Multiple Code and Indexing Choices
•ReliabilityTestedtoListedSpecications
• Less than 1.0" Square
• Termination Choices
• Panel and Shaft Seal Option
• Manufactured to ISO 9001 and Military Standards
•CustomCongurationsAvailable
DIMENSIONS in inches (and millimeters)
.865 ± .015
(21,97 ± 0,38)
DIM. A ± .025
(DIM A ± 0,64)
.200 ± .015
(5,08 ± 0,38)
C
L C
L
.288 ± .015
(7,31 ± 0,38)
.250 ± .015
(6,35 ± 0,38)
.365 ± .020
(9,27 ± 0,51)
.250 ± .020
(6,35 ± 0,51)
.375 (9,53) 3/8-32
UNEF-2A THREAD
.320 ± .010
(8,13 ± 0,25)
.050 ± .005
(1,27 ± 0,13)
.100 ± .010
(2,54 ± 0,25)
TYP.
.060 ± .015
(1,53 ± 0,38)
Number of Decks
.450 (11,43)
.650 (16,51)
.850 (21,59)
1.050 (26,67)
Dimension A
1
2
3
4
PART NUMBER,
DATE CODE, AND
PINOUT ID LABEL
.219 ± .005
(5,56 ± 0,13)
.250 + .001 - .002
(6,35 + 0,03 - 0,05)
.190 ± .015
(4,83 ± 0,38) .020 ± .005
(0,51 ± 0,13)
.865 ± .015
(21,97 ± 0,38)
Ø
Optical and Mechanical
Encoders
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Mechanical Encoders
Series 25: Multi-deck
Shaft size: B = 1/4" diameter shaft
Sealed or non-sealed: S = Shaft and panel seal; No letter = no seal
Terminal structure: P = PC, perpendicular to shaft; R = PC, rear facing (one deck
only); F = PC, front facing (one deck only).
Angle of throw (determines the maximum number of positions):
10 = 10°, 36 positions; 11 = 11.25°, 32 positions; 12 = 12°, 30 positions;
15 = 15°, 24 positions; 18 = 18°, 20 positions; 22 = 22.5°, 16 positions;
30 = 30°, 12 positions; 36 = 36°, 10 positions; 45 = 45°, 8 positions; 60 = 60°, 6 positions;
90 = 90°, 4 positions.
25BSP22–Q–1–16 C
Stop arrangement: For switches with maximum positions, add C for continuous rotation;
add F for stop between and last. No notation required for less than maximum
positions.
Number of positions: Maximum is dependent on the angle of throw. Minimum is two.
Number of decks: One through four possible.
Code output:
B = Binary (contact Grayhill for availability)
Q = Quadrature
G = Gray (contact Grayhill for availability)
Specials include 1/8" diameter shaft, custom angles of throw for binary, binary complement
and gray code outputs. Contact Grayhill Sales for availability.
SPECIFICATIONS
Electrical Ratings
Switching Loads: 150 mA at 120 Vac, resistive;
150 mA at 28 Vdc, resistive
Current Carrying Capacity: 250 mA at 28
Vdc, resistive
Contact Resistance: 75 mΩ max. after life
Insulation Resistance: 1000 mΩ minimum
between terminals and shaft
Voltage Breakdown: 1000 Vac minimum
between terminals and shaft
Life Expectancy: 50,000 cycles at rated loads
Contacts: Shorting
Materials and Finishes
Bushing: Die cast zinc alloy, tin-zinc plated
Mounting Hardware: plated brass
Decks, Deck Separators, End Plate:
Thermoplastic
Contacts and Terminals: Gold, silver, nickel-
plated beryllium copper
Shaft, Stop Blades: Stainless Steel
Detent Balls: Steel, nickel-plated
Rivets: Brass, zinc-plated
Mechanical Ratings
Stop Strength: 10 in-lbs minimum
Rotational Torque: 4-20 in-oz, dependent on
the number of decks
Operating Temperature Range: -65°C to
+85°C
Non-Turn Device: Flatted mounting bushing,
.375" dia. x .320"
Package Size: .865" square
Termination: PC terminals, .100" on center.
Decks are .200" apart
Hardware: Hex nut and lockwasher supplied
ORDERING INFORMATION
For prices and discounts, contact a local Sales an authorized local Distributor or Grayhill.
Control knobs available.
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Grayhill:
25BSR22-G-1-16F 25BSR22-B-1-07 25BR22-B-1-16F 25BR15-G-1-20 25BSP11-G-1-32C 25BSP22-B-1-10
25BSR22-Q-1-16F 25BSR11-Q-1-16 25BR18-B-1-19 25BR18-G-1-20C 25BSP30-Q-2-12C 25BP30-B-1-06
25BSR22-G-1-08 25BSP15-B-1-23 25BP30-B-1-07 25BR11-Q-1-32F 25BSR11-Q-1-32F 25BR15-G-1-24F
25BSP22-B-3-16C 25BP22-Q-2-16F 25BSP18-Q-2-20F 25BSP30-Q-4-12C 25BP15-Q-1-24C 25BR11-B-1-32F
25BSR12-B-1-30C 25BR15-B-1-24C 25BSP22-G-4-16C 25BSP11-B-1-16 25BSP30-G-4-12C 25BR15-Q-1-24C
25BSF15-Q-1-24C 25BP30-Q-1-08 25BF22-B-1-16F 25BSP22-Q-1-16F 25BSR30-G-1-12C 25BP30-Q-1-12F
25BSP22-G-1-06 25BSP60-B-1-06C 25BSR22-B-1-13 25BSP45-Q-1-08C 25BR22-G-1-16C 25BP15-Q-1-24F
25BSR22-Q-1-16C 25BP18-Q-1-20F 25BP22-G-1-16F 25BP11-Q-1-32F 25BF22-Q-1-16C 25BSP22-B-2-16C
25BSP30-Q-1-05 25BP22-B-1-08 25BP22-Q-1-16C 25BSP11-Q-1-32F 25BP45-Q-2-08C 25BP18-Q-4-20C
25BSF22-B-1-16F 25BP11-B-1-32F 25BSP30-B-4-12C 25BSR15-G-1-16 25BP22-B-1-16C 25BSP45-B-1-08C
25BR22-B-1-09 25BSF22-Q-1-16F 25BP22-B-2-16F 25BP12-Q-1-30C 25BR15-B-1-19 25BSR15-Q-1-24C
25BSP11-B-1-32C 25BSP10-Q-2-36C 25BP22-G-2-16F 25BSR22-B-1-16F 25BSR11-Q-1-32C 25BSP22-G-1-16F
25BSP10-Q-1-36C 25BP22-B-2-16C 25BP11-Q-1-32C 25BP22-Q-2-16C 25BSP22-G-2-10 25BSP22-G-1-15
25BSP22-B-1-16F 25BSP15-Q-1-24C 25BSP22-Q-1-16C 25BR22-Q-1-16C 25BSR22-G-1-16C 25BP18-Q-1-20C
25BSR10-Q-1-36C 25BSP22-G-1-10 25BP22-B-1-07 25BSP30-B-1-11 25BSR30-Q-1-12C 25BP45-Q-1-08C
25BSF22-B-1-16C 25BSR22-B-1-16C 25BSP22-G-1-16C 25BSR90-Q-1-04C 25BSP60-B-1-06F 25BP30-Q-2-12F
25BSP30-Q-1-12C 25BP11-Q-2-32F 25BSP15-G-1-16 25BP22-B-1-16F