Flanged Small Ball Bearings

Brand :

MISUMI

Caution

Product Description

Flanged small ball bearings are commonly used in applications such as dental handpieces and miniature pumps. These bearings are available in various sizes to choose from.
[Feature]
● Bearing Size Standards: Metric System
● Inner Diameter Min. / Max. (mm): 3 / 8
● Outer Diameter Min. / Max. (mm): 6 / 22
● Width Min. / Max. (mm): 2.5 / 7
● Precision: JIS B 1514 Class 0
● Bearing Type: Double Shielded (ZZ)
● Load Direction: Radial Load
[Application]
It is used to support and guide rotating machine's components, such as shafts, wheels, pulleys, etc

Product Overview

· Light load, medium/low speed, dedicated for medium precision rotation, achieving ultra-low price.
· It is made of industry standard bearing steel with high surface hardness and wear resistance.
· The vibration class of the product is above Z1

■Precautions when selecting
· Differences in specifications between MISUMI high-quality bearings and economy bearings [B6901ZZ (MISUMI quality bearing) and C-E6901ZZ (MISUMI economy bearing)]
(Economy series) Small diameter deep groove ball bearing with flange Double shielded

(Economy series) Small diameter deep groove ball bearing with flange Double shielded

Dimensional Drawing

Product dimensional drawing and installation schematic diagram of double shielded deep groove ball bearing
Small diameter deep groove ball bearing Double shielded Dimensional and assembly drawing

Small diameter deep groove ball bearing Double shielded Dimensional and assembly drawing

Material	Bearing Precision	Operating Temperature	Vibration Class
Equivalent to SUJ2	GB 307 P0 JIS B 1514 Class 0	-20 to +110°C	Z1 or More

Specification Table

Key points of economy series products confirmation ①

I.D. ｄ(mm)		Clearance of MISUMI Standard products (μm)		Clearance of Economy series products (μm)
Above	Below	Min	Max	Min	Max
Less than 10		2	13	7	15

Part Number		Inner Diameter d	Outer Diameter D	Width B	D₁	C	r (min.)	Key points of economy series products confirmation Basic rated load		Allowable Speed rpm (Reference)	Mounting Dimensions		Weight (g) (reference)
Type	No.	Inner Diameter d	Outer Diameter D	Width B	D₁	C	r (min.)	Cr (Dynamic) N	Cor (Static) N	Allowable Speed rpm (Reference)	Ds (min.)	R (max.)	Weight (g) (reference)
C-EFL	682ZZ	2	5	2.3	6.1	0.6	0.08	118	35	59500	2.7	0.08	0.22
	692ZZ	2	6	3	7.5	0.8	0.15	231	69	52500	3	0.15	0.48
	682AZZ	2.5	6	2.6	7.1	0.8		146	52	49700	3.7	0.08	0.36
	692AZZ	2.5	7	3.5	8.5	0.9		270	89	44100	3.85	0.15	0.68
	673ZZ	3	6	2.5	7.2	0.6	0.1	146	52	44000	3.6	0.08	0.33
	683ZZ		7	3	8.1	0.8	0.1	273	91	44000	3.9	0.1	0.53
	693ZZ		8	4	9.5	0.9	0.15	392	125	42000	4.2	0.15	0.97
	603ZZ		9	5	10.5	1		399	131	39000			1.63
	623ZZ		10	4	11.5	1		441	153	35000			1.86
	674ZZ	4	7	2.5	8.2	0.6	0.1	155	62	42000	4.6	0.08	0.35
	684ZZ		9	4	10.3	1	0.1	448	157	39000	5	0.1	1.14
	694ZZ		11		12.5	1	0.15	501	193	34000	5.2	0.15	1.96
	604ZZ		12		13.5		0.2	670	242	34000	5.6	0.2	2.53
	624ZZ		13	5	15		0.2	910	340	28000		0.2	3.53
	675ZZ	5	8	2.5	9.2	0.6	0.1	152	64	37000		0.08	0.41
	685ZZ		11	5	12.5	1	0.15	501	197	32000	6.2	0.15	2.18
	695ZZ		13	4	15		0.2	756	301	30000	6.6	0.2	2.84
	605ZZ		14	5	16		0.2	931	354	28000	6.6	0.2	3.85
	625ZZ		16	5	18		0.3	1210	469	25000	7.7	0.3	5.3
	676ZZ	6	10	3	11.2	0.6	0.1	326	137	32000	6.6	0.1	0.77
	686ZZ		13	5	15	1.1	0.15	756	308	28000	7	0.15	3.04
	696ZZ		15	5	17	1.2	0.2	945	371	28000	7.6	0.2	4.26
	606ZZ		17	6	19	1.2	0.3	1533	585	27000	8	0.3	6.61
	626ZZ		19	6	22	1.5	0.3	1635	620	22000	8	0.3	9.09
	678ZZ	8	12	3.5	13.6	0.8	0.1	361	176	28000	8.8	0.1	1.15
	688ZZ		16	5	18	1.1	0.2	1127	497	25000	9.6	0.2	4.47
	698ZZ		19	6	22	1.5	0.3	1393	606	25000	10	0.3	8.3
	608ZZ		22	7	25	1.5	0.3	2345	980	24000	10	0.3	13
	6702ZZ	15	21	4	22.5	0.8	0.2	656	407	11000	15.4	0.2	3.9
	6704ZZ	20	27		28.5		0.2	729	510	8500	20.4	0.2	6.3
C-MFL	104ZZ	4	10		11.6		0.15	497	189	33600	5.9	0.15	1.5
	105ZZ	5	10		11.6			301	118	35000	6		1.38
	126ZZ	6	12		13.6			501	204	30100	7.2		1.86
	148ZZ	8	14		15.6		0.15	572	270	26600	9.26		2.42

kgf=N × 0.101972

Product Features

・The interface radius of the channel located on the inner and outer ring is slightly larger than the radius of the sphere, in arc shape. Mainly supports radial loads.
· In addition to the open type bearings, there are bearings with steel dust cover, bearings with contact rubber seal packing and bearings with non-contact rubber seal packing, or bearings with stop ring on the outer diameter of outer ring.
Ball bearings with dust cover or seal packing are sealed with proper amount of high-quality grease. Deep groove ball bearings generally adopt steel plate stamped cage, which has low friction torque and accuracy grade of 0.

■ Features of MISUMI Economy Bearings
(1) Why are all MISUMI Economy Bearings tested for noise and vibration? And we insist on making our products at "Z1" grade or above
Through testing the noise and vibration of bearings, it is possible to detect defects. Bearing vibration is classified into Z0, Z1, Z2, Z3, and Z4 levels (the higher the grade, the lower the noise and vibration).
(Economy series) Small diameter deep groove ball bearing with flange Double shielded

(2) Why does MISUMI insist on using 'standard wall thickness' for economy bearings?
(Economy series) Small diameter deep groove ball bearing with flange Double shielded

(3) Why does MISUMI insist on using high-performance "bearing steel" and "stainless steel" materials for its economy bearings?
(Economy series) Small diameter deep groove ball bearing with flange Double shielded

* Products circulating on the market are similar products randomly purchased by our company from online or offline markets
* The test data are obtained through testing by our company, which are for reference only

Precautions

When the precision of the shaft and bearing housing is poor, the bearing will be affected, and its due performance will not be exerted. For example, the poor precision of the mounting part with the bearing will cause relative inclination of the inner and outer rings. At this time, besides the bearing load, the edge load will be increased additionally, which will shorten the fatigue life of the bearing, and even more seriously, it will lead to damage such as cage breakage and sticking.

Please use the following special mounting tool for installation and removal

Bearing heater

Proper installation of the bearing heater can guarantee a long life of the bearing.
Rolling bearings are reliable mechanical components with long service life if they are installed and maintained correctly.
After the induction heater is used for heating, the bearing expands outward in the cylindrical direction, which can avoid the damage during installation. Induction heater is one of the most scientific heating methods, which does not need preheating, and can be heated to 110℃ in a few seconds or minutes depending on the weight of bearings, without damaging the prior lubrication

Bearing puller

When the installation state of the bearing is in the following situations, the special puller can be used for disassembly.
(a) Shaft shape: cylindrical shaft, Inner diameter shape of bearing inner ring: cylindrical hole.
(b) Shaft shape: cylindrical shaft, inner diameter shape of bearing inner ring with tight bushing: tapered hole.
(c) Shaft shape: tapered shaft, Inner diameter shape of bearing inner ring: tapered hole. In either state, the lock nut of the shaft (or the lock nut of the tight bushing) must be released during disassembly, and the lock nut must be placed in a loose state.

Example of Use

Motor

Gear unit

Machine tool
3 Machine tool

Food equipment
4 Food equipment

Medical machinery
5 Medical machinery

Semiconductor
6 Semiconductor

Brand Introduction

MISUMI, the head office company, has been providing customers with various high-quality parts such as automation parts, mold parts, electronic parts, tool & consumables, etc. quickly and accurately since its establishment in Japan in 1963. By compiling product catalogs independently and establishing a marketing system for direct sales of products, a low-cost business operation mode has been created, and by making annual product plans according to customers' opinions and requirements, MISUMI brand-name products with high quality level have been continuously developed.

MISUMI established MISUMI Precision Machinery Co., Ltd. in China in June 2003, and then changed its name to MISUMI (China) Precision Machinery Trading Co., Ltd. in June 2007, with its headquarters in Shanghai. Since the beginning of the stamping die standard parts business, the businesses of FA standard parts, plastic die standard parts and machining tools have been officially started successively, and the rapid development of MISUMI in China has won the full support of customers. China's manufacturing industry has unlimited prospects, which is why China's manufacturing industry market has become one of the most competitive industries in the world.
MISUMI's business philosophy came into being - the key to the future development of China's manufacturing industry lies in cost competitiveness, "quality" and "time".
MISUMI's product quality is built by MISUMI in Japan in its 40-year business history. We offer world-class quality at very competitive prices. The delivery time marked in the catalog is agreed upon between us and our customers. Our strict compliance with delivery time has reached 99.96%. For MISUMI, customers’ time is the most precious resource, so we keep our promise strictly.

MISUMI will join hands with customers who value quality and time, and contribute our wisdom and strength to the development of China's manufacturing industry.