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Part Number Complete

C-TMBB3-12

Outer Dia. D Inner Dia. d type CAD Days to Ship

Specification/Dimensions

Outer Dia. D(Ø)
12

13

16

20

28

30

40
Clear
Inner Dia. d(Ø)
3

4

5

6

8

10

15
Clear
type
- C-TMBB
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day
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Specify Alterations

Urethane Molded Bearings Standard

Volume Discount

Check FAQ of this product (3 items)

Brand :

MiSUMi Economy

Part Number :

C-TMBB3-12

Order Qty :
Total Price :

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Days to ship :

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Product Overview

Thermoplastic urethane is used to mold the bearing, which ensures the strength of the connection while achieving higher economic efficiency.

Product Feature

Feature 1: Urethane part is made of imported thermoplastic material, with excellent abrasion resistance, and higher economy.
Feature 2: Bearing end cap is made of resin, which is less sensitive to the environment.
Feature 3: Urethane is partly formed on bearing, which is not easy to fall off, and it is suitable for various contact methods.

MiSUMi urethane bearing is also a urethane rubber coated bearing

MiSUMi urethane bearing is also a urethane rubber coated bearing

Dimensional Drawing

Polyurethane Bearing is a non-metallic elastomer

Depending on the model, the edge of the coated layer may have radian

Urethane is thermoplastic urethane.

Specifications Overview

Type	Liner Material	Hardness	Color	Bearing Material
Standard
C-TMBB	Thermoplastic Ester Urethane	Shaw A90	Green	Bearing Steel

Material color is subject to the actual product.

Urethane is sintered on the outer perimeter of bearing.

Customized bearings are used. Please refer to the dimensional drawing for specific accuracy.

No brand is guaranteed for the bearings used in this product.

Example of Use

Example of Use ①		Role of Product
■ Wire crimping mechanism of winding machine		Urethane has excellent abrasion resistance and long service life Urethane is available in a wide variety of hardness, and different hardness can be selected according to the actual press-fit force required.
Example of Use ②		Role of Product
■ Workpiece transfer assistance		The bearing carries male threads and is easy to disassemble. The bearing has urethane to protect the workpiece from scratches.
Example of Use ③		Role of Product
■ Gluing mechanism		When the adhesive contains chemical properties, silicone rubber can be selected. Softer urethane can be selected to increase the adhesion surface between the roll paper and the workpiece.

Precautions

① Material color is subject to the actual product. Urethane (white) may be yellowed due to aging.
② MISUMI does not guarantee the bearing brand.
③ Anti-rust performance and maintenance of metal materials and surface treatment.

④ About urethane discoloring
Urethane will darken its color by absorbing UV rays or illuminating light. This phenomenon is called yellowing. But it does not affect its physical properties, please fully understand when using it.

New urethane	Yellowed urethane

⑤ Hydrolysis characteristics of urethane
If urethane is used for a long time in a moist or humid environment, it will be hydrolyzed and deteriorated.
It is recommended to manage the temperature and humidity of the warehouse and operating environment in areas with high humidity to extend the service life of the product.

⑥ State change of the product after hydrolysis
·The urethane surface becomes sticky
·Tapping with your nails will leave irreversible scars
·Decreased urethane hardness
·Urethane is dry and cracked, easily disintegrated into powder

Hydrolyzed urethane

⑦ Urethane dimension change
Urethane dimension will change with the surrounding temperature, but the amount of change is not large, and it can be restored to its original dimension after a few hours at room temperature.

Related Industries

Electronic		Automotive

Smart phone		Semiconductor

Part Number

Incomplete part number.
Please use left hand selections to complete a part number.

: 30; 45; 60

Part Number
C-TMBB3-12
C-TMBB4-13
C-TMBB4-16
C-TMBB5-16
C-TMBB5-20
C-TMBB6-20
C-TMBB6-28
C-TMBB8-28
C-TMBB8-30
C-TMBB10-30
C-TMBB10-40
C-TMBB15-40

Price	Minimum Order Qty.	Volume Discount	Days to Ship	Outer Dia. D (Ø)	Inner Dia. d (Ø)
₹ 77.00	1 Piece(s)	Available	Same day	12	3
₹ 77.00	1 Piece(s)	Available	Same day	13	4
₹ 77.00	1 Piece(s)	Available	Same day	16	4
₹ 77.00	1 Piece(s)	Available	Same day	16	5
₹ 77.00	1 Piece(s)	Available	Same day	20	5
₹ 85.00	1 Piece(s)	Available	Same day	20	6
₹ 85.00	1 Piece(s)	Available	Same day	28	6
₹ 86.00	1 Piece(s)	Available	Same day	28	8
₹ 86.00	1 Piece(s)	Available	Same day	30	8
₹ 94.00	1 Piece(s)	Available	Same day	30	10
₹ 133.00	1 Piece(s)	Available	Same day	40	10
₹ 156.00	1 Piece(s)	Available	Same day	40	15

Basic Information

Bearing Material	SUJ2	Outer Ring Type	Flat Type	Surface Material	Polyacetal (Standard)
Mounting Type	Hole	Operating/Environmental Requirement	Standard (For Light Loads)	Hardness	Shore A90
Color	Green

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently asked question (FAQ)

Question: Is there a big difference in hardness and wear resistance between economy series urethane bearings and existing products from MISUMI?: Answer: The economy series urethane bearing is directly formed with thermoplastic materials, with good hardness stability, small deviation and almost the same level of wear resistance as existing products.
Question: Can urethane be wiped with alcohol?: Answer: Yes, only a small amount of alcohol can be applied for wiping.
Urethane is a chemical resistant material, susceptible to corrosion. It can be dried or placed naturally after applying a small amount of alcohol. Other highly corrosive chemicals can not be applied even in small amounts.
Question: With the rise of the hardness of urethane, does the friction rise?: Answer: No, urethane is an elastomer, and the lower the hardness, the higher the friction.

Resin Collar Standard	Stopper bolt with urethane Straight type	Urethane molded bearing Inner wheel protruded For heavy load

Typical model: CLJJ10-16-20.0	Typical model: UST8-40	Typical model: UMRHW40
Advantages: Optional inner and outer diameter and height, better price	Suitable for conveying heavy load workpieces, compact tip, usable in narrow spaces	Suitable for conveying heavy load workpieces

Part Number		d tolerance	D	Allowable Load N(kgf)	B	D₁	Mounting Dimensions			Bearing Nominal Specifications
Type	d						Ds		R₁
							(min.)	(max.)	(max.)
C-TMBB	3	0.005 -0.015	12	34 (3.5)	3	7	3.9	4.1	0.1	683ZZ
	4		13	44 (4.5)	4	9	5	5.2		684ZZ
			16	59 (6)	5	13	5.6	6.2	0.2	624ZZ
	5		16				6.6	6.9		685RS
			20	78 (8)		16	7	7.6	0.3	625RS
	6		20			15	7.6	7.8	0.2	696RS
			28	157 (16)	6	19	8	9.5	0.3	626RS
	8		28		7	22	10	12.2		608RS
			30	176 (18)						608RS
	10		30		8	26	12	13.5		6000RS
			40	274 (28)	9	30	14	16	0.6	6200RS
	15		40			32	17	19	0.3	6002RS

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