Pancake Slip Rings
Produced by Senring developed pancake slip ring,As another form of though hole slip rings, pancake slip rings are designed for somewhere vertical space is limited while horizontal space is less restrictive. Special high vacuum sealing technology & precious metal brush ensure the high reliability transmitting and rotating performance of slip ring. With many advantages such as low torque ,low friction, low electrical noise and long life, pancake slip rings are mainly applied to transmit precise signal together with power, also could be combined with fluid media transmitting(such as hydraulic or pneumatic..
Product Manual Installation @Technical InquiryFeatures
- ● SNK series specailly designed for the rotary systems where limited vertical space;
- ● Min.thickness 6.5mm,OD100mm,through hole with many hole sizes or solid optional;
- ● Advanced spring fiber brush technology ensures low friction,low contact resistance, no friction chips;
Part No. Description
K | - | shape | - | hole size | - | power circuits | - | signal circuits | - | Product grade |
Slip Rings
2: horizontal expansion
(the same thickness,
OD changing)
3: vertical expansion
(the thickness changing,
the same OD)
12:hole size: 12.7mm
25:hole size: 25.4mm
38:hole size: 38.1mm
50:hole size: 50mm
0610:6 circuits@10A
1230:12 circuits@30A
02S:2 circuits signal
@2A(5A options)
08S:08 circuits signal
@2A(5A options)
C:standard
D:industrical
For example
● "K212-02S": K means Pancake slip ring,the first “2”means the shape of slip ring with horizontal expansion (the same thickness, OD changing), ”12” means hole size 12.7mm,”02S” means 2 circuits signal.
● "K350-0610-06S": K Pancake slip ring, “3”means the shape of slip ring with vertical expansion (the thickness changing,the same OD), ”50” means hole size 50 mm,”0610” means 6 circuits 10A current,”06S” means 6 circuits signal.
model list
model | hole size(mm) | height (thickness) |
Rings | |
K212 | ![]() |
12.7 | 20 | 2∼24 |
K225 | ![]() |
25.4 | 22 | 2∼48 |
K238 | ![]() |
38.1 | 30 | 2∼24 |
K250 | ![]() |
50 | 30 | 2∼48 |
K212 | ![]() |
70 | 30 | 2∼48 |
K312 | ![]() |
12.7 | 15.8∼77.4 | 2∼24 |
K325 | ![]() |
25.4 | 17.1∼91.9 | 2∼24 |
K338 | ![]() |
38.1 | 17.1∼91.9 | 2∼24 |
K350 | ![]() |
50 | 17.1∼91.9 | 2∼24 |
K380 | ![]() |
80 | 18.2∼88.6 | 2∼24 |
Color code of Lead Wire
ring no. | color | ring no. | color |
1 | black | 13 | WHT/BLK |
2 | brown | 14 | WHT/BRN |
3 | red | 15 | WHT/RED |
4 | orange | 16 | WHT/ORG |
5 | yellow | 17 | WHT/YEL |
6 | green | 18 | WHT/GRN |
7 | blue | 19 | WHT/BLU |
8 | purple | 20 | WHT/PUR |
9 | grey | 21 | WHT/GRY |
10 | white | 22 | BLK/RED |
11 | pink | 23 | BLK/BRN |
12 | lightblue | 24 | transparent |
SENRING ELECTRONICS
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All the slip rings and rotary unions by Senring are built with our own factory and R&D center. We do not outsource orders.
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All come with one-year warranty, and service life estimates up to 45K hours. All comply with best industry practices.