Best Objective Aligning

Othmro 1Pcs 1205 GCr15 P0Z1 25x52x15mm Normal Accuracy Double Row Ball self-aligning Ball Bearing

Dual row self aligning bearing for accommodate static and dynamic misalignment.
Self-aligning ball bearings generate less friction than any other type of rolling bearing.
Very loose conformity between balls and outer ring keeps friction and frictional heat at low levels.
Self-aligning ball bearings can reduce noise and vibration levels, for example, in fans.

✔【4X Magnification】- DM-WJ001 Mode Biological microscope Achromatic Objectives Lens, offering high quality observation without additional chromatic aberration, make image more clear..
✔【Conjugate Distance 185 】- The 185 conjugate distance is the distance between the object plane and the image plane of the objective lens in the microscope system. Working distance (W.D) 35.6mm..
✔【Standard RMS Thread】- Standard RMS thread, 20mm mounting size, please confirm the size of your microscope thread before purchase..
✔【Objective Lens Length 30.5mm】- The Length of the objective lens is 30.5mm, easy to use. It can eliminate unwanted reflections and increase contrast..
✔【Excellent Material】- The outer casing material of the objective lens is made of aluminum alloy and is durable. Customers can use it at ease..

✔【40X Magnification】- DM-WJ003 Mode Biological microscope Achromatic Objectives Lens, offering high quality observation without additional chromatic aberration, make image more clear..
✔【Conjugate Distance 185 】- The 185 conjugate distance is the distance between the object plane and the image plane of the objective lens in the microscope system. Working distance (W.D) 0.53mm..
✔【Standard RMS Thread】- Standard RMS thread, 20mm mounting size, please confirm the size of your microscope thread before purchase..
✔【Objective Lens Length 37.8mm】- The Length of the objective lens is 37.8mm, easy to use. It can eliminate unwanted reflections and increase contrast..
✔【Excellent Material】- The outer casing material of the objective lens is made of aluminum alloy and is durable. Customers can use it at ease..

High-aperture waterproof monocular with 10x magnification and a 50mm objective lens.
Multi-coated BaK-4 glass optics deliver a saturated and contrast image.
large 50mm objective lens gathers much light and ensures great visibility even in twilight.
Waterproof shell is impervious to rain and snow.
nitrogen filling protects the optical elements from fogging.
Long eye relief is convenient for observing in regular glasses or sunglasses.
eyepiece and objective lens protective caps.

Wide-field waterproof monocular with 8x magnification and a 42mm objective lens.
Multi-coated BaK-4 glass optics deliver a saturated and contrast image.
42mm objective lens gathers much light and ensures great visibility even in twilight.
Waterproof shell is impervious to rain and snow.
nitrogen filling protects the optical elements from fogging.
Long eye relief is convenient for observing in regular glasses or sunglasses.
eyepiece and objective lens protective caps.

Rubberized flip-up rifle scope lens covers that conform tightly around your rifle scope tube, protecting your lenses from dust and abrasion.
Spring-loaded flip-up mechanism pops open effortlessly when needed and securely tightly when not in use.
Each set includes two Rubberized Flip-Up Lens Covers. This set include one eyepiece cover with the size 37-43mm/1.5-1.7in and one objective cover with the size 26-31mm/1.0-1.2in.
For optimum fit, carefully measure the OUTSIDE DIAMETER of both your rifle scope’s eyepiece and objective bell. Please note that this measurement is different than the diameter of your objective lens.
Available in a full range of sizes to fit any rifle scope. Eyepiece Cover available in 37-43 mm(1.5-1.7 inch) or 43-49 mm(1.7-1.9 inch diameter). Objective Lens Cover available in 26-31 mm(1.0-1.2 inch), 31-37 mm(1.2-1.4 inch), 37-43 mm(1.5-1.7 inch), 43-49 mm(1.7-1.9 inch), 49-55 mm(1.9-2.1 inch), or 55-62 mm(2.2-2.4 inch) diameter.