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Barden Bearings

Barden Bearings
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Barden produces radial, single row, super precision angular contact (separable and nonseparable) and deep groove ball bearings. Barden bearings are classified as either instrument or spindle bearings, and are made to meet or exceed exacting ABEC-7 or ABEC-9 specifications. Barden also offers ball screw support bearings, cylindrical roller bearings and double direction angular contact thrust ball bearings.

Barden Instrument Bearings

Barden Angular Contact Instrument Bearings

Barden angular contact bearings have one ring shoulder partially or totally removed which allows a larger ball complement than comparable deep groove bearings and therefore a greater load capacity as well as a greater speed capability.

Barden Angular Contact instrument BearingsBarden angular contact bearings are assembled to a contact angle by varying the radial clearance. Instrument angular contact bearings have nominal contact angles of either 10° or 15°. Barden angular contact bearings are available in separable and nonseparable types. In a separable bearing (B type), the cage holds the balls in place so that the outer ring assembly (with cage and balls) can be separated from the inner ring.

Separable bearings are designed for applications where bearings must be installed in blind holes or where press fits are required, both on the shaft and in the housing. The separable feature also allows for dynamic balancing of a rotating component with inner ring mounted in place, apart from the outer ring and housing.

Barden angular contact bearings support thrust loads or combinations of radial and thrust loading. Barden angular contact bearings cannot accept radial loads only — a thrust load of sufficient magnitude must be present. An individual angular contact bearing can be thrust-loaded in only one direction; this load may be a working load or a preload.

Barden Deep Groove Instrument BearingsBarden Deep Groove Instrument Bearings

Barden deep groove ball bearings have full shoulders on both sides of the raceways of the inner and outer rings. Barden deep groove ball bearings can accept radial loads, thrust loads in either direction, or a combination of loads.

Barden deep groove bearings are designed to allow for the addition of closures which help keep out contaminants and keep in lubrication. Besides single deep groove bearings with closures, Barden also offers duplex pairs with seals or shields on the outboard faces.

Flanged bearings are especially useful in through-bored housings. The inboard side of the flange provides an accurate positioning surface for bearing alignment, eliminating a need for housing shoulders or shoulder rings.

Barden deep groove bearings are available in many sizes, with a variety of cage types. Barden deep groove bearings are the most widely used type of bearing due to their wide range of uses.

Barden Spindle Bearings

Barden Angular Contact Spindle BearingsBarden Angular Contact Spindle Bearings

Barden angular contact spindle bearings have one ring shoulder partially or totally removed which allows a larger ball complement than comparable deep groove bearings and therefore a greater load capacity as well as a greater speed capability.

Barden angular contact spindle bearings are assembled to a contact angle by varying the radial clearance. Spindle size Barden angular contact bearings have nominal contact angles of either 15° or 25° with the smaller angle providing better radial capacity and rigidity, and the larger angle providing better axial rigidity.

Separable and nonseparable types of Barden angular contact spindle bearings are available. In a separable angular contact spindle bearing (B type), the cage holds the balls in place so that the outer ring assembly (with cage and balls) can be separated from the inner ring.

Separable Barden angular contact spindle bearings are designed for applictions where bearings have to be installed in blind holes or where press fits are required, both on the shaft and in the housing. The separable feature also allows for dynamic balancing of a rotating component with inner ring mounted in place, apart from the outer ring and housing.

Barden angular contact spindle bearings support thrust loads or combinations of radial and thrust loading. They cannot accept radial loads only --a thrust load of sufficient magnitude must be present. An individual angular contact bearing can be thrust-loaded in only one direction; this load may be a working load or a preload.

Barden Deep Groove Spindle BearingBarden Deep Groove Spindle Bearings

Barden deep groove spindle ball bearings have full shoulders on both sides of the raceways of the inner and outer rings. Barden deep groove ball bearing can accept radial loads, thrust loads in either direction, or a combination of loads. Barden deep groove ball bearings are available in many sizes, with a variety of cage types.

The design of Barden deep groove spindle ball bearings make them suitable for the addition of closures which help exclude contaminants and retain lubrication. Besides single deep groove bearings with closures, Barden also offers duplex pairs with seals or shields on the outboard faces. Extra wide, or cartridge width, deep groove bearings are available in series 9000 for installations requiring lengthy operation without re-lubrication. Series 9000 bearings have more interior free volume and therefore hold more grease.

Barden Ball Screw Support BearingsBarden Ball Screw Support Bearings

Barden series L ball screw support bearings are specially designed for machine tool applications. Contact angle is high at 65° to provide axial rigidity and the very high thrust capacity. Barden ball screw support bearings are also available are the 7602.., 7603.. and BSB (15 mm width) series.

Barden Custom Designed Bearings

Barden manufactures predominately deep groove and angular contact (separable and nonseparable) precision ball bearings. Custom designs and features are also available from Barden. Barden's applications engineers can help you design exactly the type of bearing you need. Listed below are a few of Barden's custom designed products.

Barden FAG ZSB BearingsBarden/FAG ZSB Small Ball Angular Contact Shielded Series Spindle Bearings

Barden/FAG developed the ZSB small ball angular contact shielded series spindle bearings to allow machine tools to operate at higher running speeds (up to 20% more) while maintaining optimum work piece finish characteristics. The small ball feature of the ZSB series allows a greater number of balls to be used which increases bearing stiffness and leads to improved machining accuracy at higher speeds.

Barden's ZSB series offers optional integral shields which reduce the chances of bearing failure through contamination and prolong lubricant life when bearings are grease lubricated. Shields are available as an option on all sizes of Barden ZSB small ball angular contact shielded series spindle bearings.

Another feature of Barden ZSB small ball angular contact shielded series spindle bearings is the inner ring outside diameter land is removed from one side and the outer ring bore diameter land is removed from the opposite side. This allows for optimum exposure and flow through characteristics for air/oil lube systems, and increased storage areas for shielded grease lubed bearings. Barden ZSB small ball angular contact shielded series spindle bearings are also available in HS(S) and HC(S) types.

Barden Ceramic Hybrid BearingsBarden Cronidur® 30 Ceramic Hybrid Bearings

The use of ceramic (silicon nitride) balls in place of steel balls can dramatically improve bearing performance in several ways. Ceramic balls are 60% lighter than steel balls, and their surface finish is almost perfectly smooth which means they can have vibration levels two to seven times lower than conventional steel ball bearings.

In addition, the unique properties of silicon nitride, ceramic balls can drastically reduce the most common cause of surface wear in conventional bearings (metal rings/metal balls). In conventional bearings, microscopic surface asperities on balls and races will "cold weld" or stick together even under normal lubrication and load conditions. Because ceramic balls will not cold weld to steel rings, wear is dramatically reduced. Since wear particles generated by adhesive wear are not present in ceramic hybrids, lubricant life is also prolonged. The savings in reduced maintenance costs alone can be significant.

The following benefits can be attained by using Barden's Cronidur® 30 Ceramic Hybrids.

  • Barden's Cronidur® 30 ceramic hybrid bearings can boost running speeds by 40% to 50%.
  • Barden's Cronidur® 30 ceramic hybrid bearings run significantly cooler than standard steel ball bearings.
  • Lower operating temperatures of Barden's Cronidur® 30 ceramic hybrids help extend lube life.
  • Barden's Cronidur® 30 ceramic hybrid bearings will out last steel ball bearings up to five times.
  • Barden's Cronidur® 30 ceramic hybrid bearings have higher rigidity characteristics
  • Barden's Cronidur® 30 ceramic hybrid bearings are quieter running
Barden Double Direct Angular Contact Thrust BearingBarden Double Direct Angular Contact Thrust Bearing

Machine tool spindle bearings must provide high rigidity as well as high precision, allowing only slight deflection under load for optimum performance.

Barden double direction angular contact thrust ball bearings achieve a very high level of rigidity through their internal design and preload. Barden double direction angular contact thrust ball bearings series 2344-2347 should be used in combination with cylindrical roller bearings because they carry only thrust loads. Use of a cylindrical roller bearing in combination with a double row cylindrical roller bearing offers the advantage of supporting both axial and radial forces separately.

Barden double direction angular contact thrust ball bearings with 60° contact angle are designed for applications requiring high axial stiffness. Barden double direction angular contact thrust ball bearings are manufactured to precision tolerances, and match the mounting dimensions of the NN30 Series double row cylindrical roller bearings. Barden double direction angular contact thrust ball bearings feature a solid one piece brass cage which is ball guided.

Barden double direction angular contact thrust ball bearings can be lubricated with either grease or oil. The outer ring O.D. has a lubricating groove in the center with lubricating holes. The application of the lubricant between the two rows of balls allows optimal distribution of lubricant to both raceways.

Barden/FAG Double Row Cylindrical Roller Bearing

Barden/FAG double row cylindrical roller bearings are typically used in combination with double direction angular contact thrust bearings in applications where radial stiffness, high radial capacity and high precision support is required.

Barden/FAG double row cylindrical roller bearings have a high load carrying capacity because of the high number of cylindrical rollers in each row, and the exclusive optimized roller crown profile which results in the best load distribution.

A single row bearing (N10, N19) would be most commonly used as the "floating" bearing in combination with a set of preloaded angular contact spindle bearings.

For axial loads, Barden/FAG double direction angular contact thrust bearings, Series 2344 are used in combination with Series NN30 bearings. The cage is of solid brass construction, making this bearing suitable for rugged applications. Barden/FAG double direction angular contact thrust bearings are designed for the demands of turning spindles and are available with ceramic rollers for higher speeds.

Barden/FAG double row cylindrical roller bearings can be lubricated with either grease or oil. Double row bearings feature a lubricating groove and lubricating hole in the middle of the outer ring.