Kinematic Base, Magnetic, 2 inch x 2.45 inch
The BK Series of kinematic bases has magnetically coupled top and bottom plates, providing repeatability of less than 100 μrad. The BK-2A kinematic base has a 2.0 x 2.45 inch top and bottom plates. Kinematic bases allow you to mount, remove, and replace optical components with very high repeatability. These bases are especially timesaving in setups where optical elements must frequently be interchanged, or when reference elements must occasionally be inserted in an optical path. The BK-2A-T is an extra top plate that may be ordered separately.
Convenient Magnetic Coupling
BK-Series bases utilize four high-strength magnets to securely couple the top and bottom plates together. The magnetically-coupled plates are easy to release by simply tilting the mounted component. The edges are chamfered to reduce the risk of pinching your fingers when coupling the top and bottom plates.
Four high-strength magnets in the BK-3A couple the plates together.
Exceptional Repeatability
Three polished steel balls in the bottom plate register with a hardened cone, groove, and flat in the top plate so the two plates relocate precisely every time. These bases are especially time-saving in setups where optical elements must frequently be interchanged, or when reference elements must occasionally be inserted in an optical path.
Top and Bottom Interfacing Surfaces of BK-2A
Resources & Downloads
Other
BK-2A RoHS Certificate(278.1 kB, PDF) BK-2A_RoHS2021.pdf(681.1 kB, PDF)
Drawings And Cad
BK-2A-S(161.5 kB, PDF)
Related Products
Frequently Purchased Together
| Compare | Description | Drawings, CAD & Specs | Avail. | Price | ||
|---|---|---|---|---|---|---|
 | BK-2A-TTop Plate, For BK-2A Kinematic Base | |||||
 | PS-3-PKOptical Pedestal Pack, 3.0 in. Height, 1.0 in. Diameter, 8-32, Qty 10 | |||||
 | BK-2A-BBottom Plate, For (M-)BK-2A Kinematic Base | |||||
 | BK-1AKinematic Base, Magnetic, 1 inch Square | |||||
 | TA-8Q20-10Thread Adaptor, 8-32 Male to 1/4-20 Male, pack of 10 | |||||
 | SM-25Vernier Micrometer, 25 mm Travel, 23 lb. Load Capacity, 50.8 TPI | |||||
 | AJS100-0.5Adjustment Screw, 100 TPI, 12.7 mm Travel, Small Knob, Side Lock |
Similar
| Compare | Description | Drawings, CAD & Specs | Avail. | Price | ||
|---|---|---|---|---|---|---|
| BK-1AKinematic Base, Magnetic, 1 inch Square | |||||
 | BUP-2Universal Base, Freely Rotating Disk, Eccentric Clearance Slot | |||||
 | BK-3AKinematic Base, Magnetic, 3 inch Square | |||||
 | BKL-4Kinematic Base, Locking, 4 inch x 4.5 inch | |||||
 | 110Kinematic Magnetic Base, 90 lb. Holding Force, 1/4-20 Thread | |||||
 | LNS-1Optic Inserter Stage, 8-32 Thread |
Compatible
| Compare | Description | Drawings, CAD & Specs | Avail. | Price | ||
|---|---|---|---|---|---|---|
 | BC-5Base Clamp, Adjustable-Height, Short, 1/4-20 Tapped Holes | |||||
 | SDS40Manual Linear Stage, 0.63 in. Travel, Ball Bearings, 6-32 & 1/4-20 Threads | |||||
 | B-2BAdaptor Plate, 25x25 or 40x40 mm Stage to Optical Table or 65x65 mm Stage | |||||
| BK-2A-BBottom Plate, For (M-)BK-2A Kinematic Base | |||||
| BK-2A-TTop Plate, For BK-2A Kinematic Base |