SIZP Zinc Coated Precision Rod End Bearing

SIZP series rod end spherical plain bearings are made of carbon steel with a galvanized finish, providing excellent corrosion resistance. The sliding surfaces are equipped with bronze liners, significantly improving wear resistance and service life. The inner ring is made of high-strength bearing steel, hardened and hard chrome plated, offering superior hardness and durability. Except for models with a bore diameter less than 6.35mm, all other models support cup lubrication to ensure long-term efficient operation.

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Description
Specifications
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Temperature Range
Suitable for temperatures from -50℃ to +150℃, adaptable to various extreme environmental conditions.

Lubrication Instructions
·Models with a bore diameter less than 6.35mm are not lubricated.
·For other models, cup lubrication is supported to reduce friction and extend service life.

Customization Options
·Rod end spherical plain bearings with different thread precisions can be provided according to customer requirements to ensure that precision requirements meet specific applications.
·Stainless steel can be used for the rod end body and inner ring, suitable for highly corrosive environments. The model number is marked with an "X", e.g., SIZP…S/X.

Left-hand thread marking
If a left-hand thread version is required, the model number must be marked with "L" or "LH". For example: SILZP12S 1/2-20UNF-2B LH, to ensure accurate identification.

Bearing number	Dimensions mm/inch																Load ratings kN		Weight kg
Bearing number	d	B	dₖ	C₁ max	d₂	G UNF-2B	h₁	I₃ min	I₄	I₅	I₇	W	d₃	d₄	rₛ min	α° ≈	Dynamic	Static	Weight kg
SIZP4S 1)	4.83	7.92	11.1	6.35	15.88	10-32	26.97	14.27	34.93	4.75	9	7.92	7.54	10.31	0.3	10	3.4	4.6	0.015
SIZP4S 1)	0.19	0.312	0.437	0.25	0.625	10-32	1.082	0.582	1.375	0.187	0.354	0.312	0.297	0.408	0.012	10	3.4	4.6	0.015
SIZP6S 1)	6.35	9.53	12.7	7.14	19.05	1/4-28	33.32	19.05	42.85	4.75	10.5	9.53	9.15	11.91	0.3	13	4.5	7.7	0.025
SIZP6S 1)	0.25	0.375	0.5	0.281	0.75	1/4-28	1.312	0.75	1.887	0.187	0.413	0.375	0.36	0.469	0.012	13	4.5	7.7	0.025
SIZP7S	7.94	11.10	15.88	8.74	22.23	5/16-24	34.93	19.05	46.02	4.75	11.7	11.1	10.72	12.70	0.3	10	6.9	8.4	0.036
SIZP7S	0.3125	0.437	0.625	0.344	0.875	5/16-24	1.375	0.75	1.812	0.187	0.481	0.437	0.422	0.5	0.012	10	6.9	8.4	0.036
SIZP9S	9.53	12.70	18.26	10.31	25.40	3/8-24	41.28	23.80	53.98	6.35	12.3	14.27	13.89	17.45	0.6	9	9.4	10	0.061
SIZP9S	0.375	0.5	0.719	0.408	1	3/8-24	1.625	0.937	2.125	0.25	0.484	0.582	0.547	0.887	0.024	9	9.4	10	0.061
SIZP11S	11.11	14.27	20.62	11.1	28.58	7/16-20	46.02	26.97	80.33	6.35	14	15.88	15.49	19.05	0.6	11	11	13	0.081
SIZP11S	0.4375	0.562	0.812	0.437	1.125	7/16-20	1.812	1.082	2.375	0.25	0.551	0.625	0.81	0.75	0.024	11	11	13	0.081
SIZP12S	12.7	15.88	23.81	12.7	33.32	1/2-20	53.98	30.15	70.64	6.35	16.2	19.05	18.67	22.23	0.6	9	15	19	0.133
SIZP12S	0.5	0.625	0.937	0.5	.312	1/2-20	2.125	1.187	2.781	0.25	0.638	0.75	0.735	0.875	0.024	9	15	19	0.133
SIZP15S	15.88	19.05	28.58	14.27	38.10	5/8-18	63.50	38.10	82.55	7.92	18.2	22.23	21.84	25.40	0.6	11	20	21	0.190
SIZP15S	0.625	0.75	1.125	0.562	1.5	5/8-18	2.5	1.5	3.25	0.312	0.717	0.875	0.86	1	0.024	11	20	21	0.190
SIZP19S	19.05	22.23	33.32	17.45	44.45	3/4-16	73.03	44.45	95.25	7.92	20.9	25.4	25.02	28.58	0.6	10	29	29	0.285
SIZP19S	0.75	0.875	1.312	0.687	1.75	3/4-16	2.875	1.75	3.75	0.312	0.823	1	0.985	1.125	0.024	10	29	29	0.285
SIZP25S	25.40	34.93	47.63	25.40	89.85	5/4-12	104.78	53.98	139.70	11.10	33.1	38.1	37.72	44.45	0.6	14	60	101	1.00
SIZP25S	1	1.375	1.875	1	2.75	5/4-12	4.125	2.125	5.5	0.437	1.303	1.5	1.485	1.75	0.024	14	60	101	1.00

Engineering the Future of Motion

About UKL

Founded in 2020, UKL Bearing Manufacturing Co., Ltd. (Wuxi) is China SIZP Zinc Coated Precision Rod End Bearing suppliers and OEM/ODM SIZP Zinc Coated Precision Rod End Bearing company, an integrated industrial and trading enterprise that focuses on precision manufacturing, combining R&D, production, and sales.
The company specializes in high-performance bearing solutions, providing technical support for global industries with exceptionally high demands for precision and reliability.

With more than 200 skilled professionals and a fully modernized production base, UKL’s facilities cover the entire manufacturing process — forging, annealing, turning, heat treatment, grinding, and automated assembly.
Leveraging over 15 years of OEM/ODM export experience, UKL responds quickly to customer needs, offering flexible and customized services for clients across Europe, Asia, Africa, and the Middle East.

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