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R inch series ball bearings

For inch ball bearings, single-row deep groove radial ball bearings are the most common type of inch ball bearings, having a wide range of suitable applications. The raceway grooves on both inner and outer rings have circular arcs of slightly larger radius than that of the balls. In addition to radial loads, axial loads can be applied in either direction. Because of their low torque, they offer high speed operation with low power loss. Inch ball bearings and instrument radial ball bearings are made with very high levels of precision, therefore these are generally used in applications where accurate rotational performance and low torque is necessary, and load capacity is a secondary issue.

Inch Ball Bearing – Tables

The inch bearings listed in these ball bearing tables are available in a variety of different grades. As discussed, ABEC and ISO standards only cover part of the overall picture for ball bearings, particularly for more demanding applications. Beyond the basic dimensions and tolerances of ball bearings , characteristics such as raceway finish, cage quality, ball matching and consistency of internal geometry can affect the performance of an individual bearing in its application. These characteristics are generally determined by the level of sophistication of the equipment used to manufacture the ball bearings. This sophistication, in turn, affects the cost and availability of the bearing. All CIE bearings are guaranteed to meet stated performance specifications, and bearing quality is monitored according to ISO 9000 quality standards. It is recommended that demanding applications for ball bearings are discussed with a bearing engineer at CIE

Boundary dimensions mm								Load rating		Limiting speeds rpm
d	D	D1	B	B1	C	C1	rsmin	Cr	Cor	Grease	Oil
3.175	6.350	7.518	2.380	2.779	0.584	0.787	0.1	283	95	67000	80000
	7.938	9.119	2.779	3.571	0.584	0.787	0.1	560	179	60000	67000
	9.525	10.719	2.779	3.571	0.584	0.787	0.15	640	225	53000	63000
	9.525	11.176	3.967	3.967	0.762	0.762	0.3	630	218	56000	67000
	12.700	-	4.366	4.366	-	-	0.3	640	225	53000	63000
3.967	7.938	9.119	2.779	3.175	0.584	0.914	0.1	360	149	53000	63000
4.762	7.938	9.119	2.779	3.175	0.584	0.914	0.1	360	149	53000	63000
	9.525	10.719	3.175	3.175	0.584	0.787	0.1	710	270	50000	60000
	12.700	14.351	3.967	4.978	1.067	1.067	0.3	1300	485	43000	53000
	15.875	-	4.978	4.978	-	-	0.3	1480	615	38000	45000
6.350	9.525	10.719	3.175	3.175	0.584	0.914	0.1	375	173	48000	56000
	12.700	13.894	3.175	4.762	0.584	1.143	0.15	1080	440	40000	50000
	15.875	17.526	4.978	4.978	1.067	1.067	0.3	1480	615	38000	45000
	19.050	-	5.558	7.142	-	-	0.4	2340	885	36000	43000
7.938	12.700	13.894	3.967	3.967	0.787	0.787	0.15	540	276	40000	48000
9.525	22.225	24.613	5.558	7.142	1.570	1.570	0.4	3350	1410	32000	38000
12.700	28.575	31.120	6.350	7.938	1.575	1.575	0.4	5115	2415	26000	32000
15.875	34.925	-	7.142	8.733	-	-	0.8	6000	3250	22000	26000
19.050	41.275	-	7.938	11.13	-	-	0.8	7920	4430	17000	19000

Bearing numbers								Weight(g)
Deep groove ball bearing				Deep groove ball bearigs with flauged outer ring				Deep groove ball bearigs		with flauged outer ring
CIE		Nsk		CIE		Nsk		Deep groove ball bearigs		with flauged outer ring
Open	Closed	Open	Closed	Open	Closed	Open	Closed	Open	Closed	Open	Closed
R144	R144-2Z	R144	R144 ZZS	FR144	FR144-2Z	FR144	FR144 ZZS	0.25	0.27	0.31	0.35
R2-5	R2-5 -2Z	R2-5	R2-5 ZZ	FR2-5	FR2-5-2Z	FR2-5	FR2-5 ZZ	0.55	0.72	0.62	0.81
R2-6	R2-6 -2Z	R2-6	R2-6 ZZ	FR2-6	FR2-6-2Z	FR2-6	FR2-6 ZZ	0.96	1.13	1.04	1.25
R2	R2 -2Z	R2	R2 ZZ	FR2	FR2-2Z	FR2	FR2 ZZ	1.36	1.39	1.51	1.55
R2A	R2A-2Z	R2A	R2A ZZ	-	-	-	-	3.30	3.23	-	-
R155	R155 -2Z	R155	R155 ZZS	FR155	FR155-2Z	FR155	FR155 ZZS	0.51	0.56	0.59	0.67
R156	R156 -2Z	R156	R156 ZZS	FR156	FR156-2Z	FR156	FR156 ZZS	0.39	0.42	0.47	0.53
R166	R166 -2Z	R166	R166 ZZ	FR166	FR166-2Z	FR166	FR166 ZZS	0.81	0.85	0.90	0.98
R3	R3 -2Z	R3	R3 ZZ	FR3	FR3-2Z	FR3	FR3 ZZ	2.21	2.79	2.97	3.09
R3A	R3A -2Z	-	-	-	-	-	-	-	-	-	-
R168	R168 -2Z	FR168	FR168 ZZS	FR168	FR168-2Z	FR168	FR168 ZZS	0.57	0.54	0.65	0.68
R188	R188 -2Z	FR188	FR188	FR188	FR188-2Z	FR188	FR188 ZZ	1.53	2.21	1.64	2.43
R4	R4 -2Z 12LS 2RZ	R4	FR4 ZZ	FR4	FR4-2Z	FR4	FR4 ZZ	4.46	4.42	4.82	4.78
R4A	R-2Z-2RS-2LS-RZ	FR4	FR4 ZZ		-	-	-	7.48	9.17	-	-
R1810	R1810 -2Z	FR1810	FR1810 ZZ	FR1810	FR1810-2Z	FR1810	FR1810 ZZS	1.56	1.48	1.17	1.63
R6	R6 -2Z-2RS-2LS-2RZ	R6	R6 ZZ	FR6	FR6-2Z	FR6	FR6 ZZS	9.02	11.00	10.00	12.10
R8	R8-2Z-2LS	-	-	FR8	FR8-2Z	-	-	-	-	-	-
R10	R10-2Z-2LS	-	-	-	-	-	-	-	-	-	-
R12	R12-2Z-2LS	-	-	-	-	-	-	-	-	-	-

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auto bearing & ball bearing

Deep Groove Ball Bearings

Structure Assortment

Open deep groove ball bearings

Shield deep groove ball bearings

Sealed deep groove ball bearings

Material Assortment

Chrome steel ball bearings

Carbon steel ball bearings

Stainless steel ball bearings

Ceramic ball bearings

Usage Assortment

Conveyor ball bearing

Air conditioning bearings

Window and Door Pulley Bearings Series

Window pulley roller bearings

Window roller bearing assembly sets

Plastic pulley bearings

Pressed stamped special bearings

Design Assortment

Ball bearings with snap ring groove on outer rings

Ball bearings with flange outer rings

Ball bearings with felt seal

Ball bearings with extended inner rings

Ball bearings with band

Ball bearings with anti slip inner rings (89000 type)

One direction ball bearings

Ball bearings with filling slot

Double row ball bearings

Bearing Item No Assortment

60 series ball bearings

62 series ball bearings

63 series ball bearings

67 series ball bearings

68 series ball bearings

69 series ball bearings

16 series ball bearings

R inch series ball bearings

Miniature ball bearings

Special non standard ball bearings

Other related category:	Auto Bearings, Power Transmission Parts, Auto Steering Gears
Relative Product :	Deep Groove Ball Bearings , Angular Contact Ball Bearing , Cylindrical Roller Bearings , Self-Aligning Ball Bearing , Spherical Roller Bearings , Tapered Roller Bearings , Bearing Units , Thrust Bearings , Needle Roller Bearings , Linear Bearings , Special Non Standard Bearings

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