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Maintenance Free Rod End Bearing

Left Hand Thread Spherical Rod End

5-35mm Ball Joint

Product Description

Maintenance Free Rod End Bearing SIL..TK GIKR..PW

Male Thread Ball Joint 5-35mm Left Hand Thread

Product Overview

Maintenance Free Rod End Bearings, also known as self-lubricating rod end joint bearings, are sliding bearings that operate without regular external oil injection. These bearings utilize built-in solid lubricating materials to achieve long-term maintenance-free operation, making them ideal for mechanical systems requiring high reliability, cleanliness, and maintenance convenience.

Key Features & Benefits

Maintenance-Free Operation: Built-in solid lubricating materials provide continuous lubrication without regular refueling
High Reliability: Eliminates jamming and wear caused by insufficient lubrication
Environmentally Friendly: No risk of oil leakage, suitable for food, medical, and clean room applications
Corrosion Resistance: Stainless steel construction with non-metallic lubricating layers for harsh environments
Long Service Life: "One-time installation, long-term operation" design philosophy

Product Structure & Components

This rod end bearing consists of several key components:

Body: High-strength carbon structural steel with galvanized or anti-corrosion treatment, featuring internal threads (SI type) or external threads (SA type)
Inner Ring: Hardened bearing steel (GCr15) with spherical outer surface, quenched and tempered for high hardness and wear resistance
Self-Lubricating Pad: Embedded sliding surface made of sintered bronze+graphite, PTFE composite fabric, or copper alloy+molybdenum disulfide
Outer Ring: Double half structure or integral design forming ball joint structure with inner ring spherical surface
Seals: Rubber sealing rings on high-end models to prevent dust and moisture ingress

Available Sizes

Diameter range: 5mm to 35mm

Bearing Code	Dimensions (mm)														Load Rating kN		a°	Weight
	d	B	dk	C1	d2	d3	h1	L3	L4	L5	L7	W	d4	d5	Dynamic	Static	a°	≈kg
	d	B	dk	max	max	6H	h1	min	max	L5	L7	W	d4	d5	Dynamic	Static	≈
SILL5T/K	5	8	11.112	7.5	18	M5x0.8	27	8	36	4	10	9	12	11	3.6	4.6	4	0.020
SIL6T/K	6	9	12.7	7.5	20	M6x1	30	9	40	5	11	11	10	13	4.7	5.2	9	0.025
SIL8T/K	8	12	15.88	9.5	24	M8x1.25	36	12	48	5	13	14	12.5	16	7.6	8.2	12	0.047
SIL10T/K	10	14	19.05	11.5	28	M10x1.5	43	15	58	6.5	16	17	17	19	12	15	10	0.088
SIL10T/K-1	10	14	19.05	11.5	28	M10x1.25	43	15	58	6.5	16	17	17	19	12	15	10	0.088
SIL12T/K	12	16	22.23	12.5	32	M12x1.75	50	18	67	6.5	18	19	17.5	22	14	19	12	0.140
SIL12T/K-1	12	16	22.23	12.5	32	M12x1.25	50	18	67	6.5	18	19	17.5	22	14	19	12	0.140
SIL14T/K	14	19	25.4	14.5	36	M14x 2	57	21	76	8	20	22	25	25	19	24	14	0.200
SIL14T/K-1	14	19	25.4	14.5	36	M14x1.5	57	21	76	8	20	22	25	25	19	24	14	0.200
SIL16T/K	16	21	28.58	15.5	42	M16x2	64	24	85	8	24	22	27	27	23	29	14	0.250
SIL16T/K-1	16	21	28.58	15.5	42	M16x1.5	64	24	85	8	24	22	27	27	23	29	14	0.250
SIL18T/K	18	23	31.75	17.5	46	M18x1.5	71	27	94	10	22.5	27	25	31	29	34	15	0.350
SIL20T/K	20	25	34.93	18.5	50	M20x1.5	77	30	102	10	25	32	34	34	34	40	14	0.430
SIL22T/K	22	28	38.1	21.0	54	M22x1.5	84	33	112	12	27.5	32	37	37	42	50	14	0.610
SIL25T/K	25	31	42.86	23.0	60	M24x2	94	36	124	12	28.5	36	33.5	42	52	57	14	0.810
SIL30T/K	30	37	50.8	27.0	70	M30x2	110	45	145	15	33	41	40	51	73	77	17	1.400
SIL30T/K-1	30	37	50.8	27.0	70	M27x2	110	45	145	15	33	41	40	51	73	77	17	1.400
SIL35T/K	35	43	57.15	28.0	80	M36x2	125	56	165	15	42	50	46	56	110	116	17	1.600

For left-hand thread, suffix "L" is added to bearing number and thread sign, e.g. SIL20T/K M20x1.5L-6H.

SI..TK is equivalent to GIKR..PW INA.

Industrial Applications

Specifically designed for automatic production line applications requiring reliable, maintenance-free bearing solutions

Common Applications

Robotics: Joints in wrists, elbows, knees, and ankles requiring lightweight, high-precision maintenance-free design
Medical Equipment: Operating table adjustment mechanisms and rehabilitation equipment joints requiring oil-free clean operation
Food & Packaging Machinery: Strapping machines and conveyor line tensioning devices to prevent oil contamination
Automated Production Lines: Robotic arm connection nodes and linkage transmission for enhanced system stability
Rail Transit & Automotive: Suspension systems and pedal connectors with vibration resistance and wear resistance

Selection Guidelines

Choose the appropriate rod end bearing type based on your specific requirements:

High Swing Frequency: PTFE composite material liners for superior anti-friction performance
Wet/Corrosive Environments: Stainless steel rod ends or models with sealed structures
Heavy Load Conditions: Inner ring quenching and outer ring thickening design (PHS.. POS.. type)
Space-Limited Applications: SI... C internal thread design for easy reverse installation

Installation Tips

Preparation

Ensure bearings are not bumped or deformed, and sliding spherical surfaces are free from scratches or contamination. Use specialized tools including press machines, copper or soft steel assembly sleeves, and torque wrenches.

Recommended Installation Method: Press Fit

- Use soft metal assembly sleeves with inner diameter slightly larger than shaft neck and outer diameter smaller than inner ring edge
- Apply force directly to tightly fitted end face of sleeve
- Never transmit pressure through rolling elements or sliding surfaces to prevent PTFE layer damage
- For mass installation, use press machines to ensure uniform force distribution and concentric pressing

Tag:

Place of Origin:	China
Brand Name:	SYX
Certification:	ISO/TS 16949:2009
Model Number:	SIL..TK GIRK..PW

Minimum Order Quantity:	500pcs
Price:	$0.50 - $25.00
Packaging Details:	white box, color box, plastic bag, ect.
Delivery Time:	30 working days
Payment Terms:	T/T
Supply Ability:	100000pcs per month

Maintenance Free Rod End Bearing with Left Hand Thread 5-35mm Spherical Ball Joint

Maintenance Free Rod End Bearing

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