AISI 420 Stainless Steel Bearings for Industrial Use

AISI 420 Stainless Steel Bearings for Industrial Use Overview

Compare representative CXE Bearing products by dimensions, material, and seal type. Use the left navigation to switch collections without returning to the catalog home.

Products In This Collection

Browse all matching CXE Bearing products in this collection. Each row shows dimensions, material, seal type, public reference price, and the fastest RFQ path.

121-240 / 443 products

Product	Bore	OD	Width	Material	Seal	Reference Price	RFQ
S608-2RS 8 x 22 x 7 mm Bearing	8 mm	22 mm	7 mm	Stainless Steel	2RS	On request	RFQ
S608-ZZ 8 x 22 x 7 mm Bearing	8 mm	22 mm	7 mm	Stainless Steel	ZZ	On request	RFQ
S609-2RS 9 x 24 x 7 mm Bearing	9 mm	24 mm	7 mm	Stainless Steel	2RS	On request	RFQ
S61800 10 x 19 x 5 mm Deep Groove Ball Bearing	10 mm	19 mm	5 mm	Stainless Steel		Reference US$ 0.34 AISI 420	RFQ
S61800-2RS 10 x 19 x 5 mm Deep Groove Ball Bearing	10 mm	19 mm	5 mm	Stainless Steel	2RS	Reference US$ 0.34 AISI 420	RFQ
S61800-ZZ 10 x 19 x 5 mm Deep Groove Ball Bearing	10 mm	19 mm	5 mm	Stainless Steel	ZZ	Reference US$ 0.34 AISI 420	RFQ
S61801 12 x 21 x 5 mm Deep Groove Ball Bearing	12 mm	21 mm	5 mm	Stainless Steel		Reference US$ 0.36 AISI 420	RFQ
S61801-2RS 12 x 21 x 5 mm Deep Groove Ball Bearing	12 mm	21 mm	5 mm	Stainless Steel	2RS	Reference US$ 0.36 AISI 420	RFQ
S61801-ZZ 12 x 21 x 5 mm Deep Groove Ball Bearing	12 mm	21 mm	5 mm	Stainless Steel	ZZ	Reference US$ 0.36 AISI 420	RFQ
S61802 15 x 24 x 5 mm Deep Groove Ball Bearing	15 mm	24 mm	5 mm	Stainless Steel		Reference US$ 0.41 AISI 420	RFQ
S61802-ZZ 15 x 24 x 5 mm Deep Groove Ball Bearing	15 mm	24 mm	5 mm	Stainless Steel	ZZ	Reference US$ 0.41 AISI 420	RFQ
S61803 17 x 26 x 5 mm Deep Groove Ball Bearing	17 mm	26 mm	5 mm	Stainless Steel		Reference US$ 0.50 AISI 420	RFQ
S61803-ZZ 17 x 26 x 5 mm Deep Groove Ball Bearing	17 mm	26 mm	5 mm	Stainless Steel	ZZ	Reference US$ 0.50 AISI 420	RFQ
S61804 20 x 32 x 7 mm Deep Groove Ball Bearing	20 mm	32 mm	7 mm	Stainless Steel		Reference US$ 0.64 AISI 420	RFQ
S61804-ZZ 20 x 32 x 7 mm Deep Groove Ball Bearing	20 mm	32 mm	7 mm	Stainless Steel	ZZ	Reference US$ 0.64 AISI 420	RFQ
S61805 25 x 37 x 7 mm Deep Groove Ball Bearing	25 mm	37 mm	7 mm	Stainless Steel		Reference US$ 0.76 AISI 420	RFQ
S61805-ZZ 25 x 37 x 7 mm Deep Groove Ball Bearing	25 mm	37 mm	7 mm	Stainless Steel	ZZ	Reference US$ 0.76 AISI 420	RFQ
S61806-30MM 30 x 42 x 7 mm Deep Groove Ball Bearing	30 mm	42 mm	7 mm	Stainless Steel		Reference US$ 0.97 AISI 420	RFQ
S61806-ZZ 30 x 42 x 7 mm Deep Groove Ball Bearing	30 mm	42 mm	7 mm	Stainless Steel	ZZ	Reference US$ 0.97 AISI 420	RFQ
S61807 35 x 47 x 7 mm Deep Groove Ball Bearing	35 mm	47 mm	7 mm	Stainless Steel		Reference US$ 1.37 AISI 420	RFQ
S61807-2RS 35 x 47 x 7 mm Deep Groove Ball Bearing	35 mm	47 mm	7 mm	Stainless Steel	2RS	Reference US$ 1.37 AISI 420	RFQ
S61807-ZZ 35 x 47 x 7 mm Deep Groove Ball Bearing	35 mm	47 mm	7 mm	Stainless Steel	ZZ	Reference US$ 1.37 AISI 420	RFQ
S61808 40 x 52 x 7 mm Deep Groove Ball Bearing	40 mm	52 mm	7 mm	Stainless Steel		Reference US$ 1.74 AISI 420	RFQ
S61808-2RS 40 x 52 x 7 mm Deep Groove Ball Bearing	40 mm	52 mm	7 mm	Stainless Steel	2RS	Reference US$ 1.74 AISI 420	RFQ
S61808-ZZ 40 x 52 x 7 mm Deep Groove Ball Bearing	40 mm	52 mm	7 mm	Stainless Steel	ZZ	Reference US$ 1.74 AISI 420	RFQ
S61809 45 x 58 x 7 mm Deep Groove Ball Bearing	45 mm	58 mm	7 mm	Stainless Steel		Reference US$ 2.09 AISI 420	RFQ
S61809-2RS 45 x 58 x 7 mm Deep Groove Ball Bearing	45 mm	58 mm	7 mm	Stainless Steel	2RS	Reference US$ 2.09 AISI 420	RFQ
S61809-ZZ 45 x 58 x 7 mm Deep Groove Ball Bearing	45 mm	58 mm	7 mm	Stainless Steel	ZZ	Reference US$ 2.09 AISI 420	RFQ
S61810 50 x 65 x 7 mm Deep Groove Ball Bearing	50 mm	65 mm	7 mm	Stainless Steel		Reference US$ 2.58 AISI 420	RFQ
S61810-2RS 50 x 65 x 7 mm Deep Groove Ball Bearing	50 mm	65 mm	7 mm	Stainless Steel	2RS	Reference US$ 2.58 AISI 420	RFQ
S61810-ZZ 50 x 65 x 7 mm Deep Groove Ball Bearing	50 mm	65 mm	7 mm	Stainless Steel	ZZ	Reference US$ 2.58 AISI 420	RFQ
S61811 55 x 72 x 9 mm Deep Groove Ball Bearing	55 mm	72 mm	9 mm	Stainless Steel		Reference US$ 3.22 AISI 420	RFQ
S61811-2RS 55 x 72 x 9 mm Deep Groove Ball Bearing	55 mm	72 mm	9 mm	Stainless Steel	2RS	Reference US$ 3.22 AISI 420	RFQ
S61811-ZZ 55 x 72 x 9 mm Deep Groove Ball Bearing	55 mm	72 mm	9 mm	Stainless Steel	ZZ	Reference US$ 3.22 AISI 420	RFQ
S61812 60 x 78 x 10 mm Deep Groove Ball Bearing	60 mm	78 mm	10 mm	Stainless Steel		Reference US$ 4.27 AISI 420	RFQ
S61812-2RS 60 x 78 x 10 mm Deep Groove Ball Bearing	60 mm	78 mm	10 mm	Stainless Steel	2RS	Reference US$ 4.27 AISI 420	RFQ
S61812-ZZ 60 x 78 x 10 mm Deep Groove Ball Bearing	60 mm	78 mm	10 mm	Stainless Steel	ZZ	Reference US$ 4.27 AISI 420	RFQ
S61813 65 x 85 x 10 mm Deep Groove Ball Bearing	65 mm	85 mm	10 mm	Stainless Steel		Reference US$ 4.83 AISI 420	RFQ
S61813-2RS 65 x 85 x 10 mm Deep Groove Ball Bearing	65 mm	85 mm	10 mm	Stainless Steel	2RS	Reference US$ 4.83 AISI 420	RFQ
S61813-ZZ 65 x 85 x 10 mm Deep Groove Ball Bearing	65 mm	85 mm	10 mm	Stainless Steel	ZZ	Reference US$ 4.83 AISI 420	RFQ
S61814 70 x 90 x 10 mm Deep Groove Ball Bearing	70 mm	90 mm	10 mm	Stainless Steel		Reference US$ 5.64 AISI 420	RFQ
S61814-2RS 70 x 90 x 10 mm Deep Groove Ball Bearing	70 mm	90 mm	10 mm	Stainless Steel	2RS	Reference US$ 5.64 AISI 420	RFQ
S61814-ZZ 70 x 90 x 10 mm Deep Groove Ball Bearing	70 mm	90 mm	10 mm	Stainless Steel	ZZ	Reference US$ 5.64 AISI 420	RFQ
S61815 75 x 95 x 10 mm Deep Groove Ball Bearing	75 mm	95 mm	10 mm	Stainless Steel		Reference US$ 6.44 AISI 420	RFQ
S61815-2RS 75 x 95 x 10 mm Deep Groove Ball Bearing	75 mm	95 mm	10 mm	Stainless Steel	2RS	Reference US$ 6.44 AISI 420	RFQ
S61815-ZZ 75 x 95 x 10 mm Deep Groove Ball Bearing	75 mm	95 mm	10 mm	Stainless Steel	ZZ	Reference US$ 6.44 AISI 420	RFQ
S61816 80 x 100 x 10 mm Deep Groove Ball Bearing	80 mm	100 mm	10 mm	Stainless Steel		Reference US$ 8.86 AISI 420	RFQ
S61816-2RS 80 x 100 x 10 mm Deep Groove Ball Bearing	80 mm	100 mm	10 mm	Stainless Steel	2RS	Reference US$ 8.86 AISI 420	RFQ
S61816-ZZ 80 x 100 x 10 mm Deep Groove Ball Bearing	80 mm	100 mm	10 mm	Stainless Steel	ZZ	Reference US$ 8.86 AISI 420	RFQ
S61817 85 x 110 x 13 mm Deep Groove Ball Bearing	85 mm	110 mm	13 mm	Stainless Steel		On request	RFQ
S61817-2RS 85 x 110 x 13 mm Deep Groove Ball Bearing	85 mm	110 mm	13 mm	Stainless Steel	2RS	On request	RFQ
S61817-ZZ 85 x 110 x 13 mm Deep Groove Ball Bearing	85 mm	110 mm	13 mm	Stainless Steel	ZZ	On request	RFQ
S61818 90 x 115 x 13 mm Deep Groove Ball Bearing	90 mm	115 mm	13 mm	Stainless Steel		On request	RFQ
S61818-2RS 90 x 115 x 13 mm Deep Groove Ball Bearing	90 mm	115 mm	13 mm	Stainless Steel	2RS	On request	RFQ
S61818-ZZ 90 x 115 x 13 mm Deep Groove Ball Bearing	90 mm	115 mm	13 mm	Stainless Steel	ZZ	On request	RFQ
S61819 95 x 120 x 13 mm Deep Groove Ball Bearing	95 mm	120 mm	13 mm	Stainless Steel		On request	RFQ
S61819-2RS 95 x 120 x 13 mm Deep Groove Ball Bearing	95 mm	120 mm	13 mm	Stainless Steel	2RS	On request	RFQ
S61819-ZZ 95 x 120 x 13 mm Deep Groove Ball Bearing	95 mm	120 mm	13 mm	Stainless Steel	ZZ	On request	RFQ
S61820 100 x 125 x 13 mm Deep Groove Ball Bearing	100 mm	125 mm	13 mm	Stainless Steel		On request	RFQ
S61820-2RS 100 x 125 x 13 mm Deep Groove Ball Bearing	100 mm	125 mm	13 mm	Stainless Steel	2RS	On request	RFQ
S61820-ZZ 100 x 125 x 13 mm Deep Groove Ball Bearing	100 mm	125 mm	13 mm	Stainless Steel	ZZ	On request	RFQ
S61821 105 x 130 x 13 mm Deep Groove Ball Bearing	105 mm	130 mm	13 mm	Stainless Steel		On request	RFQ
S61821-2RS 105 x 130 x 13 mm Deep Groove Ball Bearing	105 mm	130 mm	13 mm	Stainless Steel	2RS	On request	RFQ
S61821-ZZ 105 x 130 x 13 mm Deep Groove Ball Bearing	105 mm	130 mm	13 mm	Stainless Steel	ZZ	On request	RFQ
S61822 110 x 140 x 16 mm Deep Groove Ball Bearing	110 mm	140 mm	16 mm	Stainless Steel		On request	RFQ
S61822-2RS 110 x 140 x 16 mm Deep Groove Ball Bearing	110 mm	140 mm	16 mm	Stainless Steel	2RS	On request	RFQ
S61822-ZZ 110 x 140 x 16 mm Deep Groove Ball Bearing	110 mm	140 mm	16 mm	Stainless Steel	ZZ	On request	RFQ
S61824 120 x 150 x 16 mm Deep Groove Ball Bearing	120 mm	150 mm	16 mm	Stainless Steel		On request	RFQ
S61824-ZZ 120 x 150 x 16 mm Deep Groove Ball Bearing	120 mm	150 mm	16 mm	Stainless Steel	ZZ	On request	RFQ
S61826-2RS 130 x 165 x 18 mm Deep Groove Ball Bearing	130 mm	165 mm	18 mm	Stainless Steel	2RS	On request	RFQ
S61828 140 x 175 x 18 mm Deep Groove Ball Bearing	140 mm	175 mm	18 mm	Stainless Steel		On request	RFQ
S61830 150 x 190 x 20 mm Deep Groove Ball Bearing	150 mm	190 mm	20 mm	Stainless Steel		On request	RFQ
S61832 160 x 200 x 20 mm Deep Groove Ball Bearing	160 mm	200 mm	20 mm	Stainless Steel		On request	RFQ
S61834 170 x 215 x 22 mm Deep Groove Ball Bearing	170 mm	215 mm	22 mm	Stainless Steel		On request	RFQ
S61836 180 x 225 x 22 mm Deep Groove Ball Bearing	180 mm	225 mm	22 mm	Stainless Steel		On request	RFQ
S61838 190 x 240 x 24 mm Deep Groove Ball Bearing	190 mm	240 mm	24 mm	Stainless Steel		On request	RFQ
S61840 200 x 250 x 24 mm Deep Groove Ball Bearing	200 mm	250 mm	24 mm	Stainless Steel		On request	RFQ
S61844 220 x 270 x 24 mm Deep Groove Ball Bearing	220 mm	270 mm	24 mm	Stainless Steel		On request	RFQ
S61848 240 x 300 x 28 mm Deep Groove Ball Bearing	240 mm	300 mm	28 mm	Stainless Steel		On request	RFQ
S61852 260 x 320 x 28 mm Deep Groove Ball Bearing	260 mm	320 mm	28 mm	Stainless Steel		On request	RFQ
S61856 280 x 350 x 33 mm Deep Groove Ball Bearing	280 mm	350 mm	33 mm	Stainless Steel		On request	RFQ
S61900 10 x 22 x 6 mm Deep Groove Ball Bearing	10 mm	22 mm	6 mm	Stainless Steel		Reference US$ 0.34 AISI 420	RFQ
S61900-ZZ 10 x 22 x 6 mm Deep Groove Ball Bearing	10 mm	22 mm	6 mm	Stainless Steel	ZZ	Reference US$ 0.34 AISI 420	RFQ
S61901 12 x 24 x 6 mm Deep Groove Ball Bearing	12 mm	24 mm	6 mm	Stainless Steel		Reference US$ 0.36 AISI 420	RFQ
S61901-ZZ 12 x 24 x 6 mm Deep Groove Ball Bearing	12 mm	24 mm	6 mm	Stainless Steel	ZZ	Reference US$ 0.36 AISI 420	RFQ
S61902 15 x 28 x 7 mm Deep Groove Ball Bearing	15 mm	28 mm	7 mm	Stainless Steel		Reference US$ 0.41 AISI 420	RFQ
S61902-ZZ 15 x 28 x 7 mm Deep Groove Ball Bearing	15 mm	28 mm	7 mm	Stainless Steel	ZZ	Reference US$ 0.41 AISI 420	RFQ
S61903 17 x 30 x 7 mm Deep Groove Ball Bearing	17 mm	30 mm	7 mm	Stainless Steel		Reference US$ 0.50 AISI 420	RFQ
S61903-ZZ 17 x 30 x 7 mm Deep Groove Ball Bearing	17 mm	30 mm	7 mm	Stainless Steel	ZZ	Reference US$ 0.50 AISI 420	RFQ
S61904 20 x 37 x 9 mm Deep Groove Ball Bearing	20 mm	37 mm	9 mm	Stainless Steel		Reference US$ 0.69 AISI 420	RFQ
S61904-ZZ 20 x 37 x 9 mm Deep Groove Ball Bearing	20 mm	37 mm	9 mm	Stainless Steel	ZZ	Reference US$ 0.69 AISI 420	RFQ
S61905 25 x 42 x 9 mm Deep Groove Ball Bearing	25 mm	42 mm	9 mm	Stainless Steel		Reference US$ 0.84 AISI 420	RFQ
S61905-2RS 25 x 42 x 9 mm Deep Groove Ball Bearing	25 mm	42 mm	9 mm	Stainless Steel	2RS	Reference US$ 0.84 AISI 420	RFQ
S61905-ZZ 25 x 42 x 9 mm Deep Groove Ball Bearing	25 mm	42 mm	9 mm	Stainless Steel	ZZ	Reference US$ 0.84 AISI 420	RFQ
S61906 30 x 47 x 9 mm Deep Groove Ball Bearing	30 mm	47 mm	9 mm	Stainless Steel		Reference US$ 1.14 AISI 420	RFQ
S61906-2RS 30 x 47 x 9 mm Deep Groove Ball Bearing	30 mm	47 mm	9 mm	Stainless Steel	2RS	Reference US$ 1.14 AISI 420	RFQ
S61906-ZZ 30 x 47 x 9 mm Deep Groove Ball Bearing	30 mm	47 mm	9 mm	Stainless Steel	ZZ	Reference US$ 1.14 AISI 420	RFQ
S61907 35 x 55 x 10 mm Deep Groove Ball Bearing	35 mm	55 mm	10 mm	Stainless Steel		Reference US$ 1.43 AISI 420	RFQ
S61907-2RS 35 x 55 x 10 mm Deep Groove Ball Bearing	35 mm	55 mm	10 mm	Stainless Steel	2RS	Reference US$ 1.43 AISI 420	RFQ
S61907-ZZ 35 x 55 x 10 mm Deep Groove Ball Bearing	35 mm	55 mm	10 mm	Stainless Steel	ZZ	Reference US$ 1.43 AISI 420	RFQ
S61908 40 x 62 x 12 mm Deep Groove Ball Bearing	40 mm	62 mm	12 mm	Stainless Steel		Reference US$ 1.93 AISI 420	RFQ
S61908-2RS 40 x 62 x 12 mm Deep Groove Ball Bearing	40 mm	62 mm	12 mm	Stainless Steel	2RS	Reference US$ 1.93 AISI 420	RFQ
S61908-ZZ 40 x 62 x 12 mm Deep Groove Ball Bearing	40 mm	62 mm	12 mm	Stainless Steel	ZZ	Reference US$ 1.93 AISI 420	RFQ
S61909 45 x 68 x 12 mm Deep Groove Ball Bearing	45 mm	68 mm	12 mm	Stainless Steel		Reference US$ 2.25 AISI 420	RFQ
S61909-2RS 45 x 68 x 12 mm Deep Groove Ball Bearing	45 mm	68 mm	12 mm	Stainless Steel	2RS	Reference US$ 2.25 AISI 420	RFQ
S61909-ZZ 45 x 68 x 12 mm Deep Groove Ball Bearing	45 mm	68 mm	12 mm	Stainless Steel	ZZ	Reference US$ 2.25 AISI 420	RFQ
S61910 50 x 72 x 12 mm Deep Groove Ball Bearing	50 mm	72 mm	12 mm	Stainless Steel		Reference US$ 2.83 AISI 420	RFQ
S61910-2RS 50 x 72 x 12 mm Deep Groove Ball Bearing	50 mm	72 mm	12 mm	Stainless Steel	2RS	Reference US$ 2.83 AISI 420	RFQ
S61911 55 x 80 x 13 mm Deep Groove Ball Bearing	55 mm	80 mm	13 mm	Stainless Steel		Reference US$ 3.41 AISI 420	RFQ
S61911-2RS 55 x 80 x 13 mm Deep Groove Ball Bearing	55 mm	80 mm	13 mm	Stainless Steel	2RS	Reference US$ 3.41 AISI 420	RFQ
S61912 60 x 85 x 13 mm Deep Groove Ball Bearing	60 mm	85 mm	13 mm	Stainless Steel		Reference US$ 4.35 AISI 420	RFQ
S61912-ZZ 60 x 85 x 13 mm Deep Groove Ball Bearing	60 mm	85 mm	13 mm	Stainless Steel	ZZ	Reference US$ 4.35 AISI 420	RFQ
S61913 65 x 90 x 13 mm Deep Groove Ball Bearing	65 mm	90 mm	13 mm	Stainless Steel	2RS	Reference US$ 5.15 AISI 420	RFQ
S61913 65 x 90 x 13 mm Deep Groove Ball Bearing	65 mm	90 mm	13 mm	Stainless Steel		Reference US$ 5.15 AISI 420	RFQ
S61913-ZZ-65MM 65 x 90 x 13 mm Deep Groove Ball Bearing	65 mm	90 mm	13 mm	Stainless Steel	ZZ	Reference US$ 5.15 AISI 420	RFQ
S61914 70 x 100 x 16 mm Deep Groove Ball Bearing	70 mm	100 mm	16 mm	Stainless Steel		Reference US$ 6.44 AISI 420	RFQ
S61914-2RS 70 x 100 x 16 mm Deep Groove Ball Bearing	70 mm	100 mm	16 mm	Stainless Steel	2RS	Reference US$ 6.44 AISI 420	RFQ
S61915 75 x 105 x 16 mm Deep Groove Ball Bearing	75 mm	105 mm	16 mm	Stainless Steel		Reference US$ 7.25 AISI 420	RFQ
S61915-2RS 75 x 105 x 16 mm Deep Groove Ball Bearing	75 mm	105 mm	16 mm	Stainless Steel	2RS	Reference US$ 7.25 AISI 420	RFQ
S61916 80 x 110 x 16 mm Deep Groove Ball Bearing	80 mm	110 mm	16 mm	Stainless Steel	2RS	Reference US$ 11.27 AISI 420	RFQ

Technical Guide Materials, applications, selection notes, and internal reference links for this collection.

AISI 420 stainless steel bearings are commonly reviewed when a buyer needs more corrosion resistance than standard bearing steel while still keeping a hardened martensitic stainless material for general industrial motion. They are often considered for humid machinery, packaging equipment, light wash exposure, instruments, conveyors, and compact assemblies where rust risk is part of the buying decision.

This collection helps buyers compare AISI 420 bearing options by bearing type, model, size, seal style, and application fit. Use it as a material-focused path first, then narrow the choice by bearing family, load direction, closure type, and the space available in the machine.

What Are AISI 420 Bearings?

AISI 420 is a martensitic stainless steel used in bearing applications where hardness, wear behavior, and moderate corrosion resistance all matter. It is different from austenitic stainless grades such as AISI 304 or AISI 316, which are often selected for stronger corrosion resistance but may not be chosen for the same hardened bearing-ring requirements.

For many buyers, the practical question is not simply “Is it stainless?” The better question is whether AISI 420 matches the environment, load, speed, lubrication, and replacement envelope. If the bearing is exposed to moisture or cleaning but still needs a hardened bearing material, AISI 420 can be a practical option to review.

Common Applications

Packaging machinery and light conveyor systems
Automation equipment and compact motion assemblies
Laboratory instruments and measuring equipment
Light-duty food equipment positions where the bearing is not a direct food-contact component
Small motors, rollers, pulleys, and guide mechanisms
Humid indoor machinery and equipment exposed to occasional moisture
Replacement projects where the original bearing was stainless and the exact grade must be confirmed

If the application has aggressive chemicals, marine exposure, frequent washdown, or a strict corrosion requirement, compare AISI 420 with AISI 316 stainless steel bearings before deciding. If the application mainly needs a stainless deep groove bearing in a compact envelope, the broader stainless steel bearings page can help route the model family.

How to Choose an AISI 420 Bearing

Start with Bearing Type

AISI 420 can appear in several bearing families, including deep groove ball bearings, miniature bearings, flanged bearings, needle bearings, and some roller-bearing applications. Match the bearing family to the load direction first. A radial deep groove bearing, a thrust bearing, and a needle bearing solve different problems even when the material grade is the same.

Confirm Dimensions and Suffixes

Check the model number, bore, outside diameter, width, seal or shield suffix, cage, and any special clearance or precision requirement. Do not assume that a stainless replacement is correct only because the dimensions are close. For small bearings, compare related paths such as stainless miniature ball bearings and metric ball bearings when the original marking is unclear.

Review the Operating Environment

AISI 420 is usually considered for moisture, humidity, mild corrosion risk, and clean industrial environments. For harsher corrosion exposure, a different stainless grade or bearing construction may be needed. For higher wear or precision requirements, the bearing type, heat treatment, lubrication, and fit should be reviewed instead of relying on material name alone.

Check Load, Speed, and Lubrication

Material selection does not replace bearing selection. Confirm radial load, axial load, speed range, duty cycle, lubrication method, and expected contamination. If the bearing overheats, corrodes, or wears early, the cause may be lubrication, fit, alignment, seal drag, or contamination rather than the stainless grade alone.

AISI 420 Compared with Other Stainless Bearing Choices

Material Path	Typical Reason to Review	Buyer Caution
AISI 420 stainless bearings	Hardened stainless bearing material with moderate corrosion resistance	Confirm whether corrosion exposure is mild or more severe
AISI 304 bearings	Non-magnetic or cleaner-environment stainless review in some assemblies	Check whether hardness and bearing construction fit the application
AISI 316 stainless bearings	Stronger corrosion-resistance review for wet or chemical exposure	Confirm load, speed, and bearing availability before substitution
Stainless flange ball bearings	Compact locating face plus stainless material	Check flange diameter and mounting space

RFQ Checklist

When requesting AISI 420 stainless steel bearings, include:

Bearing number and suffix, if known
Bore, outside diameter, width, and any flange or shoulder dimensions
Bearing family, such as deep groove, miniature, flanged, needle, or roller
Seal or shield preference, such as open, ZZ, or 2RS
Environment details: moisture, cleaning, humidity, mild chemicals, or dry indoor use
Load direction, speed range, duty cycle, and lubrication method
Photos of the old bearing and the mounted position when the part number is unclear

Common Mistakes to Avoid

Selecting by stainless grade before confirming bearing type
Matching only bore size and ignoring width, suffix, or flange features
Assuming all stainless bearings have the same corrosion behavior
Replacing a sealed bearing with an open bearing in a contaminated position
Treating a material change as the fix for lubrication, fit, or alignment problems

Frequently Asked Questions

Are AISI 420 bearings corrosion resistant?

AISI 420 stainless steel bearings provide corrosion resistance for many mild or humid environments, but the exact fit depends on exposure, cleaning conditions, lubrication, and bearing construction. For stronger corrosion concerns, compare the application with 304 or 316 stainless options.

Can AISI 420 replace standard bearing steel?

It can be reviewed when corrosion resistance is needed, but replacement should still confirm load, speed, clearance, fit, seal type, and lubrication. Do not change material without checking the full bearing requirement.

What information helps CXE Bearing review the request?

Send the bearing number, dimensions, seal or shield requirement, material preference, quantity, operating environment, speed, load direction, lubrication method, and photos if the original part is worn or unmarked.

AISI 420 Stainless Steel Bearings for Industrial Use