Made from high-quality 45# steel (equivalent to British standard IC45/080A47), this split retaining ring is engineered for precise shaft positioning and secure locking in mechanical assemblies. Designed as a versatile component, it functions as a positioning collar, shaft stop, and locking ring, making it ideal for linear bearings, optical axes, and industrial machinery.
Key Specifications:
Material: 45# Steel (high strength, wear-resistant)
Type: Split design for easy installation without disassembling shafts
Dimensions: Available in various sizes (e.g., ID 45mm × OD 80mm × T 22mm) – custom options available
Features:
Split structure allows quick clamping and adjustment, ensuring firm retention while preventing axial movement.
Precision-machined surfaces for tight tolerance and stable performance under load.
Suitable for limiting, locking, and securing components on shafts, compatible with linear motion systems and bearing housings.
Applications:
Perfect for industrial equipment, automation machinery, 3D printers, and precision instruments requiring reliable shaft positioning. The durable 45# steel construction ensures long service life in harsh working environments.

D Inner diameter	B thickness	D1 Outer diameter	M Coarse thread	d	R	X	Y	Z
3	6	14	M3	2.9	3	4.5	2.2	3~5
4	6	16	M3	2.9	3	4.5	3	3.5~6
5	6	16	M3	2.9	3	4.5	4	5~6.5
6	9	16	M3	3.4	3	6	4	6~6.5
7	9	19	M3	3.4	3	8	5	7~9
8	9	19	M3	3.4	3	8	5	7~9
9	9	19	M3	3.4	3	9	5	7~9
10	9	24	M3	3.4	3	9	5	8~10
11	9	28	M3	3.4	3	9	5	8~10
12	11	28	M4	4.5	3.75	10	5	9~10
13	11	30	M4	4.5	3.75	10	5	10
14	11	30	M4	4.5	3.75	11	5	10~12
15	13	34	M5	5.5	4.5	12	6	11~13
16	13	34	M5	5.5	4.5	12	6	11~12
17	13	36	M5	5.5	4.5	12	6	11~12
18	13	36	M5	5.5	4.5	14	7	13~14
19	13	36	M5	5.5	4.5	14	7	13~14
20	15	40	M6	6.6	6	14	7	13~14
21	15	40	M6	6.6	6	14	7	13~14
22	15	42	M6	6.6	6	14	7	13~14
23	15	45	M6	6.6	6	17	7	16~18
24	15	45	M6	6.6	6	17	7	16~18
25	15	45	M6	6.6	6	17	7	16~18
26	15	45	M6	6.6	6	17	7	16~18
27	15	45	M6	6.6	6	20	10	18~20
28	15	48	M6	6.6	6	20	10	18~20
30	15	54	M6	6.6	6	20	10	18~20
32	15	54	M6	6.6	6	23	12	21
35	15	60	M6	6.6	6	23	12	21
38	15	60	M6	6.6	6	26	13	23
40	15	60	M6	6.6	6	26	13	23
42	19	60	M8	9	了	26	13	23
45	19	60	M8	9	7	26	13	23
50	19	78	M8	9	9	32	16	28
52	19	78	M8	9	9	32	16	28
55	19	82	M8	9	9	32	16	28
60	19	88	M8	9	9	37	18	-
65	19	93	M8	9	9	37	18	-
70	19	98	M8	9	9	37	18	-
75	19	103	M8	9	9	37	18	-
80	19	109	M8	9	9	50	22	-
85	23	120	M10	11	13	50	22
90	23	122	M10	11	13	50	22	-
95	23	130	M10	11	13	50	22	-
100	23	150	M10	11	13	60	26