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Design Units:
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Unit designation for O.D., I.D., etc.
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Your choices are...
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Inch
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Units are inches or fractions of an inch.
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Metric
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Units such as millimeters or centimeters.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Bore
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The bearing industry uses a standard numbering system for bearings with metric-diameter bores. If the bore is hexagonal, enter the dimension across the flats. If the bore is tapered, enter the smaller diameter. For bore sizes 04 and up, multiply the bore size by 5 to identify the bore diameter in millimeters (mm). Refer to the table below.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Outside Diameter
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Enter the outside diameter of the bearing. For housed bearings, include the housing. For flanged bearings, exclude the flange.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Overall Width
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Enter the overall width of the bearing or bearing assembly, including the locking collar (if present).
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Tables:
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Bore Size (does not list all possible sizes)
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| Bore Size | Dimension (mm) | | 00 | 10mm | | 01 | 12mm | | 02 | 15mm | | 03 | 17mm | | 04 | 20mm | | 05 | 25mm | | 06 | 30mm | | 07 | 35mm | | 08 | 40mm | | 09 | 45mm | | 10 | 50mm | | 11 | 55mm | | 12 | 60mm | | 13 | 65mm | | 14 | 70mm | | 15 | 75mm | | 16 | 80mm | | 17 | 85mm | | 18 | 90mm | | 19 | 95mm | | 20 | 100mm |
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Do not over-specify. Enter only those loads that apply for bearing type and application. Static and dynamic loads may not be available for all bearing types and suppliers.
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Rated Speed (Oil)
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The rated speed for a bearing with grease lubrication is lower than that of a bearing with oil lubrication.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Static Radial Load
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Static radial load is the maximum radial load a bearing can endure without excessive, permanent deformation.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Dynamic Radial Load
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Dynamic radial load is the calculated, constant, radial load which a group of identical bearings can endure theoretically for a rating life of 1 million revolutions of the inner ring.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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ANSI - American National Standards Institute
AFBMA - Anti-friction Bearing Manufacturers Association
ABEC - Annular Bearing Engineers Committee
Refer to tables below for quality standards and cross-reference to other standards organizations. Note: Stretch window to resize table(s).
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ABEC Rating:
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ABEC (Annular Bearing Engineers' Committee) ratings classify different accuracy and tolerance ranges for bearings. The higher the ABEC number the tighter the bearing tolerances.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Tables:
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| Bearing Standard | Tolerance Class | Bearing Types | | AFBMA ANSI | AFBMA/ANSI Std. 20 | ABEC-1
RBEC-1 | ABEC-3
RBEC-3 | ABEC-5
RBEC-5 | ABEC-7 | ABEC-9 | Radial bearings (except tapered roller bearings) | | AFBMA/ANSI Std. 19.1 | Class K | Class N | Class C | Class B | Class A | Tapered roller bearings (Metric series) | | AFBMA B 3.19 ANSI Std. 19 | Class 4 | Class 2 | Class 3 | Class 0 | Class 00 | Tapered roller bearings (Inch series) | | AFBMA/ANSI Std. 12.1 | -- | Class 3P | Class 5P
Class 5T | Class 7P
Class 7T | Class 9P | Precision instrument ball bearings (Metric series) | | AFBMA/ANSI Std. 12.2 | -- | Class 3P | Class 5P
Class 5T | Class 7P
Class 7T | Class 9P | Precision instrument ball bearings (Inch series) | | ISO | ISO 492 | Normal class
Class 6X | Class 6 | Class 5 | Class 4 | Class 2 | Radial bearings | | ISO 199 | Normal class | Class 6 | Class 5 | Class 4 | -- | Thrust ball bearings | | ISO 578 | Class 4 | -- | Class 3 | Class 0 | Class 00 | Tapered roller bearings (Inch series) | | ISO 1224 | -- | -- | Class 5A | Class 4A | -- | Precision instrument bearings | | JIS | JIS B 1514 | Class 0
Class 6X | Class 6 | Class 5 | Class 4 | Class 2 | All types | | DIN | DIN 620 | P0 | P6 | P5 | P4 | P2 | All types | | AFBMA - Anti-friction Bearing Manufacturers Association
(ABEC-Ball Bearings, RBEC-Roller Bearings)
ANSI- American National Standards Institute
ISO- International Organization for Standardization
JIS- Japanese Industrial Standards
DIN- Deutsch Industrie Norm |
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| Standard ABEC Tolerances
Inner Rings (all tolerances in micrometers) | | Bearing
Bore
(mm) | Bore Diameter*
+.00mm to | Width
Variation | Radial
Runout | Side Runout
with Bore | Raceway
Runout
with Side | Width Inner
&
Outer Rings | | ABEC
Rating | 1 | 3 | 5 | 7 | 9 | 3 | 5 | 7 | 9 | 1 | 3 | 5 | 7 | 9 | 3 | 5 | 7 | 9 | 3 | 5 | 7 | 9 | 1-3-5-7 | 9 | | 0 - 10 | -3 | -2 | -2 | -1.5 | -1 | 3 | 2 | 1 | .5 | 3 | 2 | 1.5 | 1 | .5 | 3 | 3 | 1 | .5 | 6 | 3 | 1 | .5 | -50 | -10 | | 10 - 18 | -3 | -2 | -2 | -1.5 | -1 | 4 | 2 | 1 | .5 | 4 | 3 | 1.5 | 1 | .5 | 4 | 3 | 1 | .5 | 6 | 3 | 1 | .5 | -50 | -20 |
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| Standard ABEC Tolerances
Outer Rings (all tolerances in micrometers) | | Bearing
O.D.
(mm) | Outside Diameter*
+.00mm to | Width
Variation | Radial
Runout | Raceway
Runout
with Side | Outside
Diameter
Runout with
Side | | ABEC
Rating | 1 | 3 | 5 | 7 | 9 | 3 | 5 | 7 | 9 | 1 | 3 | 5 | 7 | 9 | 3 | 5 | 7 | 9 | 3 | 5 | 7 | 9 | | 0 - 18 | -4 | -3 | -2 | -2 | -1 | 4 | 2 | 1 | .5 | 6 | 4 | 2 | 1.5 | .5 | 8 | 3 | 2 | .5 | 4 | 3 | 1.5 | .5 | | 18 - 30 | -4 | -3 | -2 | -2 | -1.5 | 4 | 2 | 1 | .5 | 6 | 4 | 2 | 1.5 | 1 | 8 | 3 | 2 | 1 | 4 | 3 | 1.5 | .5 |
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Seals / Shielding:
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Seals and shields provide protection from contamination and as a retainer for lubricant. Seals provide better protection and lubricant containment than shields, but have lower maximum speed capabilities.
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Your choices are...
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None (Open Bearing)
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Bearing is open, has no seals or shields. Open bearings offer no protection from contamination or lubricant containment, but have higher maximum speed capabilities than bearings with seals or shields.
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Single Seal
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Bearing has one seal to prevent the ingress of dirt.
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Double Seal
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Bearing has two seals to prevent the ingress of dirt.
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Single Shield
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Bearing has one shield to prevent the ingress of dirt.
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Double Shield
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Bearing has two shields to prevent the ingress of dirt.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Bearing Design:
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Your choices are...
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Conrad or Deep Groove Courtesy of Timken Super Precision
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The balls rotate in a deep groove machined into the inner and outer races. A cage maintains Ball space. This type of bearing exhibits a good radial load capacity, a fair axial load capacity and a fair capability to resist misalignment.
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Double Row Deep Groove Courtesy of CCVI Bearing Company
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This bearing style is a modified version of the single row deep groove ball bearing through the addition of a second raw of balls. This design enlarges its capability to carry radial and thrust loads, due to the increased number of balls. Though using the same radial mounting space as the single-row style, its increased width lowers the capability of this bearing to accommodate misalignment.
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Maximum Capacity Courtesy of Timken Super Precision
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Maximum capacity bearings have a higher load capacity than the Conrad type but diminished thrust capacity. These bearings have no cage to separate the balls. A filling slot is used to load as many balls as possible.
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Maximum Capacity Double Row
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This bearing style is a modified version of the maximum capacity single row ball bearing through the addition of a second raw of balls. Maximum capacity double row bearings have a higher radial and thrust load capacity than single row maximum capacity bearings. These bearings have no cage to separate the balls. A filling slot is used to load as many balls as possible.
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Insert Bearing / Wide Inner Ring Courtesy of CCVI Bearing Company
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Insert bearings, or wide inner ring bearings, are used for mounting on shafts without the need for shoulders, locknuts, or adapters. The bearing is locked in place through setscrews or a locking collar. Also referred to as insert bearings. The inner ring usually extends on both sides of the bearing to provide extra shaft support.
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Internal Self Aligning Courtesy of CCVI Bearing Company
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Spherically ground raceway on the bore of the outer ring allows for some limited misalignment.
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External Self Aligning
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Spherical outside diameter on outer ring mates to a ring with a spherically ground internal surface allowing for some limited misalignment.
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Counterbored
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Counterbored bearings have one side of one of the raceways (normally the outer ring) removed to facilitate assembling a greater number of balls. Widely used in small motors. Separable inner and outer races. Sometimes called magneto bearings.
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Other
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Unlisted, unspecified, or proprietary configuration.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Thin-section
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Thin-section bearings have small cross-sections with respect to their diameter. They are designed to save space, lower the weight of a design, and reduce friction. Some thin-section bearings are also referred to as torque tube bearings.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Ceramic Hybrid (ceramic balls)
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A ceramic hybrid bearing is constructed of steel inner and outer rings with ceramic (typically Si3N4) balls in place of steel. These bearings have several advantages over all steel bearings, such as higher speed and acceleration capability, increased stiffness, higher accuracy, lower friction and heat generation, reduced lubrication requirements, low thermal expansion, extended operating life. Bearings containing all ceramic balls are also nonconductive and are commonly used in electric motor applications.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Stainless Steel
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Stainless steel is chemical and corrosion resistant and can have relatively high pressure ratings.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Plastic
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Any of numerous organic, synthetic, or processed materials that are mostly thermoplastic or thermosetting polymers of high molecular weight and that can be made into objects, films, or filaments.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Plated
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Bearing is plated. Common plating materials are cadmium and chrome.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Solid Lubrication
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Solid lubricants can be used in a vacuum, in high and low temperature applications, and where oil or grease may be a contaminate. Solid Lubrication Bearings feature excellent oil retention and long lubrication life.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Hex Bore?
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Bearing has a hexagon shaped bore.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Tapered Bore?
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Bearing has a tapered bore.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Flanged
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The bearing has a flange for mounting or locating.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Snap Ring / Snap Ring Groove
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Used to provide a locating shoulder when mounting bearing.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Spherical Outside Diameter
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The bearing is tolerant of misalignment and has a greater load capacity than internal self-alignment, but requires more radial space.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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;)
;)
;)