EXTERNAL THREAD BEARING GUIDE WHEEL

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External thread bearing guide wheel

Comprehensive definition
The external thread bearing guide pulley is a pulley with its own mounting thread and a bearing inside. It installs and secures quickly via its own external threads and provides smooth, low-friction guidance.

We can understand it by disassembling its name:
1.Guide Wheel: Core functional part. It is a wheel that guides, supports an object (such as a belt, rope, wire, chain, or another surface) along a specific path and changes the direction of movement. Its main role is to reduce friction and wear.

2.Bearing: the core structural part. Inside the guide wheel, a bearing (usually a deep groove ball bearing) is integrated. This allows the wheels to rotate very smoothly and with low resistance. Wheels without bearings can be laborious and prone to wear and tear.

3.Male thread: core mounting section. Unlike ordinary wheels fixed with shafts and circlips, it does not have a smooth hole in the center, but a section of male thread. This allows it to be screwed directly into a mount or bracket with an internal thread like a screw.

Main features and advantages

1. Easy installation

no additional shafts, couplings or complex fixings are required, just screw them in, greatly simplifying the assembly process.

2. Save space

The integrated design is very compact and suitable for occasions with limited space.

3. Height Adjustable

Rotate to fine-tune the wheel reach and position for precise alignment and tensioning.

4. Easy maintenance

when it needs to be replaced, just unscrew the old one and replace it with the new one.

5. Smooth operation

Built-in bearings ensure smooth rotation and low noise.

Structural details

A typical external thread bearing guide wheel usually consists of the following parts

Wheel body

Usually made of engineering plastics (such as nylon, POM polyacetal), stainless steel, copper or carbon steel, the outer layer may be wrapped with rubber or polyurethane to increase friction or protect the guided object.

Bearing

The core is a deep groove ball bearing, with fine steel balls and cages inside, and precision grooves in the inner and outer rings.

Externally threaded rod

Fixed to the inner ring of the bearing, usually made of stainless steel or carbon steel and surface treated (such as galvanized) to prevent rust.

Dust cover

Many models of bearings have rubber or metal sealing covers on both sides (such as RS or 2RS models) to prevent dust and impurities from entering and extend service life.

Common application scenarios

This component is widely used in automation equipment and precision machinery that requires linear motion, guidance, and tensioning

01/

3D printer：Used to guide and support the timing belt, it is a very common part in 3D printers.

02/

CNC machines: guide cables, hoses, or measuring lines.

03/

Automation equipment: In assembly lines, robot arms, to guide belts, chains, or wire ropes.

04/

Office equipment: such as photocopiers and paper transfer guides in printers.

05/

Textile machinery: guide yarn.

06/

Gym equipment: guide cable.

How to choose?

When you need to choose this kind of guide wheel, you need to consider the following key parameters:

Outside diameter: The diameter of the wheel itself.

Inner diameter/bore diameter: refers to the bore diameter of the internal bearing, which determines the diameter of the threaded rod used (but this component comes with its own threaded rod, so this parameter is more of a structural reference).

Thread specification: This is the most important parameter, such as M4, M5, M6, M8, etc., which must match the threaded hole of the installation location.

Overall Length: The length from the wheel end to the threaded rod end.

Wheel body material: Select according to load, speed and working environment (such as whether corrosion resistance and anti-static are required).

Bearing type: ordinary bearings or bearings with sealed rings (sealed bearings are more suitable for dusty environments).

In summary, the externally threaded bearing guide wheel is a standardized component with clever design and integrated functions. It integrates the driving, supporting and fixing functions into one, providing great convenience and reliability for modern mechanical design.

productcate-457-320 productcate-273-255

No.	Item stainless steel screw		Thread Diameter	Inner Diameter	Outer Diameter	Width	step height	Lenght	Interchangeable with MISUMI
No.	GCr15	Stainless steel	M	d	D	W	C	L	Interchangeable with MISUMI
1	673C1L4M3	S673C1L4M3	M3	3	6	2.5	1	4	NTBG6-4
2	673C1L6M3	S673C1L6M3	M3	3	6	2.5	1	6	NTBG6-6
3	675C1L5M3	S675C1L5M3	M3	5	8	2.5	1	5	NTBG8-5
4	675C1L8M3	S675C1L8M3	M3	5	8	2.5	1	8	NTBG8-8
5	683C1L4M3	S683C1L4M3	M3	3	7	3	1	4	NTBG7-4
6	683C2L4M3	S683C2L4M3	M3	3	7	3	2	4
7	683C1L6M3	S683C1L6M3	M3	3	7	3	1	6	NTBG7-6
8	693C1L5M4	S693C1L5M4	M4	3	8	4	1	5
9	623C1L5M4	S623C1L5M4	M4	3	10	4	1	5
10	684C1L5M4	S684C1L5M4	M4	4	9	4	1	5	NTBG9-5
11	684C1.5L5M4	S684C1.5L5M4	M4	4	9	4	1.5	5
12	684C1L8M4	S684C1L8M4	M4	4	9	4	1	8	NTBG9-8
13	Double 684C4L8M4	Doubel S684C4L8M6	M6	4	9	8	4	8
14	694C1L5M4	S694C1L5M4	M4	4	11	4	1	5
15	694C1L5M6	S694C1L5M6	M6	4	11	4	1	5
16	694C1L8M4	S694C1L8M4	M4	4	11	4	1	8
17	695C1.5L5M4	S695C1.5L5M4	M4	5	13	4	1.5	5
18	695C1L5M4	S695C1L5M4	M4	5	13	5	1	5
19	695C1L6M4	S695C1L6M4	M4	5	13	5	1	6
20	695C1L8M4	S695C1L8M4	M4	5	13	5	1	8
21	695C2L6M5	S695C2L6M5	M5	5	13	5	2	6
22	696C2L8M6	S695C2L8M6	M6	5	13	5	2	8
23	695C3L8M6	S695C3L8M6	M6	5	13	5	3	8
24	624C1L5M4	S624C1L5M4	M4	4	13	5	1	5	NTBG13-5
25	624C1L6M4	S624C1L6M4	M4	4	13	5	1	6
26	624C1L8M4	S624C1L8M4	M4	4	13	5	1	8	NTBG13-8
27	604C1L5M4	S604C1L5M4	M4	4	12	4	1	5
28	604C1L5M6	S604C1L5M6	M6	4	12	4	1	5
29	604C1L8M4	S604C1L8M4	M4	4	12	4	1	8
30	625C1L6M4	S625C1L6M4	M4	5	16	5	1	6
31	685C1L5M4	S685C1L5M4	M4	5	11	5	1	5
32	685C1L6M4	S685C1L6M4	M4	5	11	5	1	6
33	685C2L6M5	S685C2L6M5	M5	5	11	5	2	6
34	685C2L8M6	S685C2L8M6	M6	5	11	5	2	8
35	685C3L8M6	S685C3L8M6	M6	5	11	5	3	8
36	605C1L5M4	S605C1L5M4	M4	5	14	5	1	5
37	605C1L6M4	S605C1L6M4	M4	5	14	5	1	6
38	605C2L6M5	S605C2L6M5	M5	5	14	5	2	6
39	605C2L8M6	S605C2L8M6	M6	5	14	5	2	8
40	625C1L5M4	S625C1L5M4	M6	5	14	5	3	8
41	625C1L6M6	S625C1L6M6	M4	5	16	5	1	5
42	625C1L8M4	S625C1L8M4	M4	5	16	5	1	6	NTBG16-5
43	625C2L6M5	S625C2L6M5	M4	5	16	5	1	8
44	625C2L8M6	S625C2L8M6	M5	5	16	5	2	6	NTBG16-8
45	625C2L8M6	S625C2L8M6	M6	5	16	5	2	8
46	625C3L8M6	S625C3L8M6	M6	5	16	5	3	8
47	686C1L8M6	S686C1L8M6	M6	6	13	5	1	8
48	686C1.5L8M6	S686C1.5L8M6	M6	6	13	5	1.5	8
49	686C2L8M6	S686C2L8M6	M6	6	13	5	2	8
50	686C3L8M6	S686C3L8M6	M6	6	13	5	3	8
51	696C1L8M6	S696C1L8M6	M6	6	15	5	1	8
52	696C1.5L8M6	S696C1.5L8M6	M6	6	15	5	1.5	8
53	696C2L8M6	S696C2L8M6	M6	6	15	5	2	8
54	696C3L8M6	S696C3L8M6	M6	6	15	5	3	8
55	696C4L8M6	S696C4L8M6	M6	6	15	5	4	8
56	Double 696C4L8M6	Double S696C4L8M6	M6	6	15	5	4	8
57	688C1L8M6	S688C1L8M6	M6	6	16	5	1	8
58	688C2L8M6	S688C2L8M6	M6	6	16	4	2	8
59	606C1L8M6	S606C1L8M6	M6	6	17	4	1	8
60	606C2L8M6	S606C2L8M6	M6	6	17	6	2	8
61	606C2.5L8M6	S606C2.5L8M6	M6	6	17	6	2.5	8
62	606C3L8M6	S606C3L8M6	M6	6	17	6	3	8
63	606C4L8M6	S606C4L8M6	M6	6	17	6	4	8
64	606C5L8M6	S606C5L8M6	M6	6	17	6	5	8
65	606C5L10M6	S606C5L10M6	M6	6	17	6	5	10
66	606C1L12M6	S606C1L12M6	M6	6	17	6	1	12
67	606C2.5L12M6	S606C2.5L12M6	M6	6	17	6	2.5	12
68	606C13L10M6	S606C13L10M6	M6	6	17	6	13	10
69	626C1L8M6	S626C1L8M6	M6	6	19	6	1	8	NTBG19-8
70	626C2L8M6	S626C2L8M6	M6	6	19	6	2	8
71	626C2.5L8M6	S626C2.5L8M6	M6	6	19	6	2.5	8
72	626C3L8M6	S626C3L8M6	M6	6	19	6	3	8
73	626C4L8M6	S626C4L8M6	M6	6	19	6	4	8
74	626C5L8M6	S626C5L8M6	M6	6	19	6	5	8
75	626C5L10M6	S626C5L10M6	M6	6	19	6	5	10
76	626C1L12M6	S626C1L12M6	M6	6	19	6	1	12	NTBG19-12
77	626C2.5L12M6	S626C2.5L12M6	M6	6	19	6	2.5	12
78	626C13L10M6	S626C13L10M6	M6	6	19	6	13	10
79	608C1L8M6	S608C1L8M6	M6	8	22	7	1	8	NTBG22-8
80	608C1.5L8M6	S608C1.5L8M6	M6	8	22	7	1.5	8
81	608C2L8M6	S608C2L8M6	M6	8	22	7	2	8
82	608C2.5L8M6	S608C2.5L8M6	M6	8	22	7	2.5	8
83	608C3L8M6	S608C3L8M6	M6	8	22	7	3	8
84	608C4L10M6	S608C4L10M6	M6	8	22	7	4	10
85	608C4.5L10M8	S608C4.5L10M8	M8	8	22	7	4.5	10
86	608C1L12M6	S608C1L12M6	M6	8	22	7	1	12	NTBG22-12
87	608C1.5L12M6	S608C1.5L12M6	M6	8	22	7	1.5	12
88	608C3L12M6	S608C3L12M6	M6	8	22	7	3	12
89	688C2L8M6	S688C2L8M6	M6	8	24	8	2	8
90	6000C2L8M6	S6000C2L8M6	M6	10	26	8	2	8
91	6000C2.5L8M6	S6000C2.5L8M6	M6	10	26	8	2.5	8	NTBG26-8
92	6000C2.5L12M6	S6000C2.5L12M6	M6	10	26	8	2.5	12	NTBG26-12
93	6000C2.5L10M8	S6000C2.5L10M8	M8	10	26	8	2.5	10
94	6200C2L8M6	S6200C2L8M6	M6	10	30	9	2	8	NTBG30-8
95	6200C2L12M6	S6200C2L12M6	M6	10	30	9	2	12	NTBG30-12
96	6200C2.5L12M6	S6200C2.5L12M6	M6	10	30	9	2.5	12
97	6200C4.5L10M8	S6200C4.5L10M8	M8	10	30	9	4.5	10
98	6200C5L10M8	S6200C5L10M8	M8	10	30	9	5	10
99	6200C3.5L12M8	S6200C3.5L12M8	M8	10	30	9	3.5	12
100	6001C4L12M10	S6001C4L12M10	M10	12	28	8	4	12
101	6001C6L12M10	S6001C6L12M10	M10	12	28	8	6	12
102	6002C5L12M10	S6002C5L12M10	M10	15	32	9	5	12
103	6002C2.5L12M10	S6002C2.5L12M10	M10	15	32	9	2.5	12	NTBG32-12
104	6002C2.5L20M10	S6002C2.5L20M10	M10	15	32	9	2.5	20	NTBG32-20
105	6202C3L12M10	S6202C3L12M10	M10	15	35	11	3	12	NTBG35-12
106	6202C4L12M10	S6202C4L12M10	M10	15	35	11	4	12
107	6202C3L20M10	S6202C3L20M10	M10	15	35	11	3	20	NTBG35-20
108	6202C8L12M10	S6202C8L12M10	M10	15	35	11	8	12
109	6203C3L12M10	S6203C3L12M10	M10	17	40	11	3	12
110	62O3C3L20M10	S6203C3L20M10	M10	17	40	11	3	20
111	6203C5L12M10	S6203C5L12M10	M10	17	40	12	5	12
112	6203C6L14M12	S6203C6L14M12	M12	17	40	12	6	14
113	6904C2.5L12M10	S6904C2.5L12M10	M10	20	37	9	2.5	12	NTBG37-12
114	6904C2.5L20M10	S6904C2.5L20M10	M10	20	37	9	2,5	20	NTBG37-20
115	6004C5L12M10	S6004C5L12M10	M10	20	40	12	5	12
116	6204C3L12M10	S6204C3L12M10	M10	20	47	14	3	12	NTBG47-12
117	6204C3L20M10	S6204C3L20M10	M10	20	47	14	3	20	NTBG47-20
118	6204C7.5L12M10	S6204C7.5L12M10	M10	20	47	14	7.5	12
119	6205C3L12M10	S6205C3L12M10	M10	25	52	15	3	12	NTBG52-12
120	6205C3L20M10	S6205C3L20M10	M10	25	52	15	3	20	NTBG52-20
121	6205C3L40M10	S6205C3L40M10	M10	25	52	15	3	40

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