Bearing SR 144

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MOQ : 1 Piece

Bearing SR 144 Specification

Weight
0.4 g

Thickness
2.5 mm

Material
Stainless Steel

Ball Bearing Type
Miniature Ball Bearing

Structure
Single Row Ball Bearing

Seals Type
Open

Number Of Rows
Single

Bore Size
4 mm

Outside Diameter
7 mm

Limiting Speed
90000 rpm

Load Capacity
Approximately 20 N (Dynamic)

Inner Diameter
4 mm

Bearing SR 144 Trade Information

Minimum Order Quantity
1 Piece

Supply Ability
1000 Pieces Per Month

Delivery Time
1 Days

About Bearing SR 144

Bearing SR 144

NSK MICRO PRECISION CO LTD.,

BEARING: SR 144 X 12 AUh 20

(300000 to 400000 rpm)

Specifications

TBP high-speed dental turbine handpiece bearings (kits), is dedicated to the development and manufacture of dental bearings that provide manufacturers. We have produced full range for high speed handpiece, such as Athena, Bien Air, Buffalo, Castellini, Champion, Chiradent, Chirana, Dabi Atlante, DME, Faro, KAVO, KMD, Lares, Micro Mega Midwest, Misc. Canister, MTC, MTI, NSK, Kinetic, Sandri, Siemens, Sirona, Star, TKD, W&H, ADEC, Youshida.. TBP dental Bearings use Ceramci Balls, and Torlon Cage, which will be higher Speeds, smoother operation, longer life and reduced maintenance, and sell well in USA and Europe countries. Ultra high-speed 300,000rpm to 450,000rpm

SR144-ZZ Stainless Steel Miniature Ball Bearing ID1/8 x OD1/4 x W7/64 DDRI418ZZ Shielded

High speed dental handpiece bearing
Structure	d	D	B	D1	C1	Shield	Main Application
	I.D.	O.D.	Width
Smooth	3.175	6.35	2.38			0	same as #02
	(1/8")	(1/4")	(3/32")
	.125"	.250"	.0937"
Smooth	3.175	6.35	2.38			1	NSK, Midwest, W&H, Lares(front)
Grooved	3.175	5.97	2.38	6.35	1.34	0	same as #04
Grooved	3.175	5.97	2.38	6.35	1.34	1	Siemens 4000,TM1,TS1 & Dabi-Atlante MS 350,RS 350
Smooth	3.175	6.35	2.38(outer)			Integral	KaVo 6000M/7000M(Front)
			2.78(inner)				Dabi Alante
Grooved	3.175	5.97	2.38(outer)	6.35	1.34	Integral	KaVo 6000M/7000M(Rear)
			2.78(inner)				KaVo635B(Rear)
							Dabi Alante
Smooth	3.175	6.35	2.78			Integral	same as #08
	(1/8")	(1/4")	(7/64")
	.125"	.250"	.1094"
Smooth	3.175	6.35	2.78			1	Bien Air Ondine,Prestige, NSK, W&H, Canisters
Grooved	3.175	5.97	2.78	6.35	1.78	Integral	same as #10
Grooved	3.175	5.97	2.78	6.35	1.78	1	W&H
							KaVo 624/625/630/640 - 647/649/650
Flanged	3.175	6.35	2.78	7.5	0.4	1	Star 430
Unique							/ADVANTAGE/
							VISTA
Flanged	3.175	6.35	2.78	7.5	0.8	1	Midwest, NSK, Castellini
Flanged	3.175	6.35	2.78	7.5	0.4	Integral	same as #11
Unique
Smooth	3.175	7.938	3.571			1	Bien Air
	(1/8")	(5/16")	(9/64")
	.125"	.3125"	.1406"
Smooth	3.175	6.35	1.91(outer)			0	Lares (rear)
	(1/8")	(1/4")	1.60(Inner)
	.125"	.250"
Flanged	3.175	6.35	2.38	7.5	0.6	1	NSK Mach-QD (Mini) & Pana Air (Mini)
	(1/8")	(1/4")	(3/32")
	.125"	.250"	.0937"
Smooth	3.175	7.938	2.78			1
	(1/8")	(5/16")	(7/64")
	.125"	.3125"	.1094"
Smooth	3.175	7.938	3.571			2	same as #14
	(1/8")	(5/16")	(9/64")
	.125"	.3125"	.1406"
Smooth	3.175	6.35	2.38			Integral	same as #02
Flanged	3.175	6.35	2.78	7.5	0.8	Integral	same as #12
Smooth	3.175	6.35	2.78			0	same as #08
Grooved	3.175	5.97	2.38	6.35	1.34	Integral	same as #04

Smooth	2.35	5.5	2			0
Smooth	3	6	2			0
Smooth	3	6	2			0
Smooth	3	6.35	2.38			0
Smooth	4	7	2.5			0
Smooth	4	7	2.5
Smooth	3	7	3			1
Smooth	3	7	4			2
	4	7	2.5			2
	4	7	2			0
	3	7	3			2
	3	7	2			0
	8	16	6			2
	2	6	2.3			0
	2	6	3			2
	4	11	4			2
	8	14	3.5			0
	8	14	4			2

Exceptional Precision and Performance

Crafted to ABEC 7 standards, the Bearing SR 144 guarantees remarkable accuracy and smooth rotation, essential in RC models and precision instruments. Its stainless steel material and single row construction contribute to long life and reliable consistency, even under high speeds up to 90,000 rpm. Each bearing is meticulously packaged to preserve quality during distribution.

Versatile Applications and Reliable Durability

Designed especially for use in RC models, small electric motors, and precision devices, the Bearing SR 144 stands out due to its compact size and robust stainless steel structure. The light oil lubrication and open seal type support minimal maintenance and consistent performance, offering reliable service under varied environmental conditions.

FAQs of Bearing SR 144:

Q: How should the Bearing SR 144 be installed in RC models or precision instruments?

A: The Bearing SR 144 should be installed with care, ensuring that the bore size of 4 mm fits securely into the designated mounting position. The single row, open type facilitates easy handling, but it is crucial to avoid contamination and excessive force during installation to preserve ABEC 7 precision.

Q: What are the main benefits of using a stainless steel miniature ball bearing like SR 144?

A: Stainless steel construction provides excellent resistance to corrosion and wear, ensuring durability. Combined with its ABEC 7 tolerance and low noise level, it delivers high efficiency and extended service life in demanding environments, including RC models and electric motors.

Q: When is it advisable to lubricate the SR 144 bearing, and what type of lubrication is recommended?

A: SR 144 bearings come pre-lubricated with light oil, suitable for their open seal structure. Regular lubrication is advisable if bearings are exposed to contaminants or after extensive usage, always using light grade oil to maintain low friction and optimal performance.

Q: Where can I purchase genuine Bearing SR 144 and in what packaging options are they available?

A: Genuine SR 144 bearings are available through authorized distributors, importers, and suppliers from Japan, ensuring quality assurance. They are offered in practical packaging options, such as polybags or boxes, to match quantity requirements and storage needs.

Q: What is the process for maintaining the Bearing SR 144 to ensure longevity?

A: To maintain the SR 144, regularly clean off dust and debris, apply fresh light oil as required, and inspect for signs of wear. Avoid excessive loads beyond the dynamic capacity (approx. 20 N) and operate within the specified temperature range for best results.

Q: How does the ABEC 7 tolerance affect the performance of SR 144 bearings?

A: ABEC 7 tolerance indicates precise manufacturing, resulting in smoother rotation, minimal vibration, and reduced noise. This high level of accuracy is crucial for maintaining efficient performance in applications requiring dependable speed and stability.

Q: What usage scenarios are ideal for the SR 144 miniature ball bearing?

A: SR 144 is ideal for RC models, miniature electric motors, and precision instrumentation that demand compact, lightweight, and high-speed rotation. Its low noise and robust design make it suitable for specialized applications requiring reliable and consistent operation.

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