TIMKEN® lock nuts and respective lock washers are used in the mounting of straight bore bearings on shafts. They are available for bearings in the various series. Their dimensions relate to the bearing bore sizes.

AS8976 narrow spherical bearings from RBC Aerospace Bearings are available in grooved or chamfered versions from steel (MS21154S grooved & MS21155S chamfered steel series) or bronze (MS21154B grooved & MS21155B chamfered bronze series). For additional information please refer to the attached documentation.

AS8976 Bearing Product Features:

• Qualified to AS8976 (formerly MIL-B-8976)

• Narrow series, metal-to-metal

• Material MS21154S & MS21155S steel series 03-503 and 03-505

Outer ring: Alloy steel, AMS-S-5000, AMS-S-6758 or AMS-S-6050

Inner ring: CRES 440C, HRC 55 min. AMS 5630

• Material MS21154B & MS21155B bronze series 03-523 and 03-525

Outer ring: Aluminum bronze

Inner ring: CRES 440C, HRC 55 min. AMS 5630

The RBC range of angular contact ball bearings have a contact angle so that they can sustain significant axial loads in one direction together with radial loads. A-Type thin section bearings are manufactured from 

52100 Steel and feature a large diameter, light weight, a small cross section and a circular pocket ball separator. They are available in the following series with different cross section sizes, dimensions and load ratings. Please refer to the specifications table for additional information.

Series KAA - Cross Section Size: 3/16"

Series KA - Cross Section Size: 1/4"

Series KB - Cross Section Size: 5/16"

Series KC - Cross Section Size: 3/8"

Series KD - Cross Section Size: 1/2"

Series KF - Cross Section Size: 3/4"

Series KG - Cross Section Size: 1"

RBC NICE 5000 Series bearings are similar in construction to those of 400 Series except that they have a flange on the outer ring to locate the bearing when pressed into a tube or housing, thus eliminating the need for an external mounting device. Designed for moderate loads and speeds (not exceeding 1200 rpm) where running accuracy and noise level requirements do not warrant the more expensive precision ground bearings. They feature a full ball complement without a retainer. The rings are case hardened and the soft steel band on the outer ring of the unitized assembly allows the bearing to be pressed into a housing without the necessity of close housing tolerances. The bearings are supplied pre-greased as a standard. 

NICE 5000 Series Specifications (See chart )

In 1971 AURORA BEARING COMPANY entered the rod end and spherical bearing market and soon became a major force in the rod end industry. The AURORA BEARING product potfolio today includes both Aerospace / Military and Commercial / Industrial rod ends and standard spherical bearings in inch and metric systems while special bearings can be designed and manufactured on request. Different series of these bearings are separately presented together with respective documentation.

AURORA BEARING MW & MG Series include Precision General Purpose Female Rod Ends with the following features. Rod ends in these series are equivalent to RBC® HEIM® BEARINGS part numbers shown in the parenthesis.

Body - Low carbon steel, protective coated for corrosion resistance. Size 16 standard series body is alloy steel not heat treated.

Ball - Alloy steel, heat treated, hard chrome plated.

Race - Low carbon steel, protective coated for corrosion resistance.

Left-hand threaded units have an identification groove near end of shank.

Grease Fitting available for sizes -3 and up. Units are supplied without grease fittings. When a grease fitting is required, specify by adding suffix "Z" or "F". Ex.: MW-6Z = Zerk Type Fitting MW-6F = Flush Type Fitting.

Load ratings apply only to rod ends without grease fittings.

Studded configuration available upon request. Specify by adding suffix "S". Ex.: MW-8S.

PTFE Liners available upon request. Specify by adding suffix "T". Ex.: MW-8T.

RBC Aerospace Bearings offers the industry’s widest selection of rod end type bearings (also known as the Heim rod ends or joints) in inch and metric sizes with a variety of platings, coatings and materials and a range of optional features such as lubrication fittings, left hand threads and keyway slots. RBC product range of Heim rod ends are offered with brass race inserts in standard, precision and high capacity designs, high strength two piece designs, self-lubricating rod ends with engineered thermoplastic races or high performance Teflon® liners, military standard (AS81935) ME/FE rod end series, ball bearing rod ends with extremely low friction and misalignment capability and elastomeric bearing rod ends that reduce vibration and noise in installations. Please refer to the attached documentation for additional information.

M81935/1 ME Series Product Features:

Wide, High Capacity Series

External Threads

Alloy Steel, Self-Lubricated

The HEIM® BEARINGS company has been acquired by RBC® BEARINGS, a leader in the world of highly engineered bearing products. 

HEIM® BEARINGS produces the industry's widest range of rod end bearing sizes (aka rod ends) in  the following four grades (types): precision, aircraft, military and commercial with each grade including different series suitable for respective application requirements. HEIM® BEARINGS are made from different materials featuring among others high strength two piece designs, high capacity designs, self-lubricating options and thermoplastic races or Teflon® liners. Please consult the supplied table on different grades and series offered.

- Precision rod ends are manufactured to tight tolerances for applications requiring improved linkage accuracy and reduced looseness. 

- Aircraft rod ends use premium materials, and have magnafluxed rod end bodies. Originally intended for aircraft applications, aircraft rod ends are used in many industrial applications where a high degree of reliability is required

- Military rod ends are produced in strict accordance with all applicable military specifications and are typically used in military and commercial aviation applications, or when Mil-Spec approval is required

- Commercial rod ends are produced using standard materials and manufacturing methods, and consist an economical choice for industrial applications

Series BHM, HFX G and HMX G four piece precision extra capacity rod ends are the high strength series intended for more heavily loaded, static and dynamic industrial applications. These rod ends have 4130 or 4340 alloy steel, heat treated bodies for increased strength and aluminum bronze race inserts for high bearing capacity. The rod end bodies are protective coated for corrosion resistance and the balls are chrome plated for superior wear and corrosion resistance. Series BHM (male) and series HFX G (female) have common thread sizes. Series HMX G (male) have oversized shanks for additional shank strength.

The letter "G" indicates Zerk Lubricator (standard on HFX G/HMX G Series). The letter “L” to prefix indicates Left Hand thread.

Please refer to the supplied chart for technical specifications and the RBC® HEIM® Bearings Catalog for additional information.

The RBC® BEARINGS offers a full line of airframe control ball bearings to the aerospace industry  in both “Standard” and “Precision” series. The prefix “M” in a bearing number indicates that it is of a precision series. Although designed and manufactured under demanding quality control requirements for airborne systems, these bearings have been successfully used in many industrial applications, where oscillatory movement, high loads, or corrosive environments are prevalent.

RBC® BEARINGS airframe control ball bearings conform to SAE-AS7949 (formerly MIL-B-7949) and many major OEM specifications. These bearings are of lightweight design, corrosion-resistant, grease-lubricated, and typically sealed. Airframe control bearing rings and balls are made of hardened bearing alloy, AISI 52100, with all exposed surfaces, except bearing bore, caps and seals, plated for corrosion protection. For improved corrosion protection, RBC® BEARINGS  supplies bearings made of hardened stainless steel alloy, AISI 440C. This alloy may be passivated or plated with cadmium or zinc nickel for enhanced corrosion protection.

The RBC® BEARINGS Airframe Control Ball Bearings are offered in different series. The KP/KP-A and KSP/KSP-A series, presented separately, are briefly discussed below.

KP (Heavy Duty) and KP-A (Medium Duty) SAE-AS7949 Series radial ball bearings  manufactured with Plyoseals. KP heavy duty single row sealed bearings comply with MS27640 specifications while KP-A medium duty single row ball deep groove sealed bearings with MS27641 specifications. Both KP and KP-A radial ball bearings are prelubricated for life and feature PTFE seals and CRES sealcaps, cadmium plated exposed surfaces except bore, caps, and seals. Both are also offered with CRES 440C material and/or zinc nickel plating per OEM specifications. Load limit ratings: Radial 1230-lbs, thrust 300-lbs.

KSP/KSP-A Series SAE-AS7949 Series single/double row, self-aligning, light and heavy duty ball bearings with bonded PTFE seals and cadmium plated exposed surfaces except bore, caps, and seals. Like those of KP/KP-A Series, both KSP and KSP-A bearings are prelubricated for life and are also offered with CRES 440C material and/or zinc nickel plating per OEM specifications.

For additional information please refer to the supplied documentation in the respective product presentations.

AS81820 Standard bearings are Plain Self-Aligning, Self-Lubricating ,Low Speed bearings with a -65 TO +325 °F temperature operating range offered in different specifications with those of SAE AS Standard superseding the Military Standard  respective parts.  AS81820 Standard bearings include AS14101/MS14101 narrow, grooved race, AS14102/MS14102 wide, chamfered race, AS14103/MS14103 wide, grooved race, and AS14104/MS14104 narrow, chamfered race.

SAE-AS14102 and SAE-AS14103 (included in this presentation) supersede those of MS14102 and MS14103 specifications. They are both are wide plain spherical bearings, self lubricating self aligning, and low speed, designed for operation in high temperature environments  (-65°F to +325°F  or -53.9°C to +162.8°C). Their inner and outer rings are made from Corrosion Resistant Steel (CRES). AS14102/MS14102 series bearings come with a chamfered outer ring while those of AS14103/MS14103 series come with a grooved outer ring. They are offered as either OEM parts from RBC® BEARINGS or as part of our own label (AVIATIONEU NEW ERA) product lines sourced from quality manufacturers. 

Narow Series AS14101/MS14101 and AS14104/MS14104 bearings (separately listed) are offered as OEM parts by different manufacturers including RBC® BEARINGS, NEW HAMPSHIRE BALL BEARINGS® (NHBB), AURORA BEARING COMPANY® and others as well as their replacements by NATIONAL PRECISION BEARING® (NPB).

For additional information and specifications please refer to the supplied documentation.

TIMKEN® tapered roller bearings are characterized by reliability, versatility and choice. They stand up to extreme situations, including high-corrosive, high-temperature, vacuum or low-lubrication environments. Uniquely designed to manage both types of loads on rotating shafts and in housings and offer a choice of nearly 26,000 product combinations, from single, double to four-row configurations and thrust bearings. Each bearing contains four interdependent components: the cone (inner ring), the cup (outer ring), the tapered rollers (rolling elements) and the cage (roller retainer). Tapered angles allow bearings to efficiently control a combination of radial and thrust loads. The steeper the outer ring angle, the greater ability the bearing has to handle thrust loads. To provide a true rolling motion of the rollers on the raceways, the extensions of the raceways and the tapered surfaces of the rollers come together at a common point, the apex, on the axis of rotation.

TIMKEN® Single Row (TS) bearings are basic and most widely used. Usually fitted as one of an opposing pair. They can be “set” to the required clearance (endplay) or preload condition to optimize performance. TSF type bearings, a TS variation, have a flanged outer ring to facilitate axial location and accurately aligned seats in a through-bored housing.

TIMKEN® Double Row Outer Ring bearings (TDO)  have a one-piece (double) outer ring and two single inner rings. Usually supplied complete with an inner-ring spacer as a pre-set assembly. They offer a wide effective bearing spread and frequently chosen for applications where overturning moments are a significant load component. Other bearing types include TDI (double-row double inner race) and TDIT (same as TDI with tapered bore). Both comprise a double inner ring and two single outer rings. Usually supplied complete with an outerring spacer as a pre-set assembly. TDI and TDIT bearings can be used at fixed (locating) positions on rotating shaft applications. Offered types include: TNA (double-row non-adjustable), TNASW (same as TNA with lubricant slots) or TNASWE  (same as TNSW with extended back face rib). They are similar to the TDO with a one-piece (double) outer ring and two single inner rings.  Supplied with a built-in clearance to give a standard setting range, these bearings provide a solution for many fixed or floating bearing applications where optimum simplicity of assembly is required.

For aerospace applications, different FAA PMA approved tapered single roller bearings are offered including TIMKEN® 13600, 13800 and LM813000 Series with a cone assembly and a cup. Offered in "inch" and "metric" versions LM813000 Series feature  minimization of friction between the rotating parts, handling of thrust loads, even load distibution across the roller, heavy load carrying capacity & stamped steel cage.

For additional information please refer to the supplied documentation.

AVIATIONEU NEW ERA air relief valves can be used in different industrial applications. They are made from different materials,  EN 1AL (free cutting steel), 1SMnPb30+C or SAE 12L13  and zinc plated. Available in the following sizes:

Metric: M10 x 1 ARV

British Standard Pipe (BSP): 1/8" BSP ARV

U.S. National Pipe Thread (NPT): 1/8" NPT ARV, 1/4" NPT ARV

Sold by the piece (pc.) with Minimum Order Quantity (MOQ) 1000 pcs.  Appearing price is for reference only per pc. Please contact us for a quotation.

The HEIM® BEARINGS company has been acquired by RBC® BEARINGS, a leader in the world of highly engineered bearing products. 

HEIM® BEARINGS produces the industry's widest range of rod end bearing sizes (aka rod ends) in the following four grades (types): precision, aircraft, military and commercial with each grade including different series suitable for respective application requirements. HEIM® BEARINGS are made from different materials featuring among others high strength two piece designs, high capacity designs, self-lubricating options and thermoplastic races or Teflon® liners. Please consult the supplied table on different grades and series offered.

- Precision rod ends are manufactured to tight tolerances for applications requiring improved linkage accuracy and reduced looseness. 

- Aircraft rod ends use premium materials, and have magnafluxed rod end bodies. Originally intended for aircraft applications, aircraft rod ends are used in many industrial applications where a high degree of reliability is required

- Military rod ends are produced in strict accordance with all applicable military specifications and are typically used in military and commercial aviation applications, or when Mil-Spec approval is required

- Commercial rod ends are produced using standard materials and manufacturing methods, and consist an economical choice for industrial applications

The HEIM® BEARINGS HM M/HF M Series aircraft rod ends, male and female threaded respecively,have rod end bodies made from aircraft quality carbon steel and magnafluxed for a high degree of assurance of rod end integrity. Balls  are made from 52100 alloy steel, heat treated and chrome plated on brass race inserts. These series were originally intended for general aviation applications and is also used in many industrial applications where rod end reliability is critical.

Letter “L” in the prefix indicates Left Hand thread

Please refer to the supplied chart for technical specifications and the RBC® HEIM® Bearings Catalog for additional information.

The HEIM® BEARINGS company has been acquired by RBC® BEARINGS, a leader in the world of highly engineered bearing products. 

HEIM® BEARINGS produces the industry's widest range of rod end bearing sizes (aka rod ends) in  the following four grades (types): precision, aircraft, military and commercial with each grade including different series suitable for respective application requirements. HEIM® BEARINGS are made from different materials featuring among others high strength two piece designs, high capacity designs, self-lubricating options and thermoplastic races or Teflon® liners. Please consult the supplied table on different grades and series offered.

- Precision rod ends are manufactured to tight tolerances for applications requiring improved linkage accuracy and reduced looseness. 

- Aircraft rod ends use premium materials, and have magnafluxed rod end bodies. Originally intended for aircraft applications, aircraft rod ends are used in many industrial applications where a high degree of reliability is required

- Military rod ends are produced in strict accordance with all applicable military specifications and are typically used in military and commercial aviation applications, or when Mil-Spec approval is required

- Commercial rod ends are produced using standard materials and manufacturing methods, and consist an economical choice for industrial applications

Series BHM, HFX G and HMX G four piece precision extra capacity rod ends are the high strength series intended for more heavily loaded, static and dynamic industrial applications. These rod ends have 4130 or 4340 alloy steel, heat treated bodies for increased strength and aluminum bronze race inserts for high bearing capacity. The rod end bodies are protective coated for corrosion resistance and the balls are chrome plated for superior wear and corrosion resistance. Series BHM (male) and series HFX G (female) have common thread sizes. Series HMX G (male) have oversized shanks for additional shank strength.

The letter "G" indicates Zerk Lubricator (standard on HFX G/HMX G Series). The letter “L” to prefix indicates Left Hand thread.

Please refer to the supplied chart for technical specifications and the RBC® HEIM® Bearings Catalog for additional information.

RBC Aerospace Bearings offers a full line of Mil Spec standard lined journal bearings, unlined bushings, and many specialty and custom designed products to support the aerospace industry.   Journals are designed in a straight (plain) configuration with a flange to accommodate a combination of radial and axial loads with corrosion resistant materials and coatings. Journals are also offered in high temperature and water resistant series. Typical journal materials are CRES 17-4PH and aluminum.  Bearings may also be cadmium or zinc nickel plated as required while CRES 440C and Inconel® 718 are available upon request. Journal bore and flanged journal face surfaces may also be provided with various liner systems to satisfy specific application requirements. Machinable liners  are qualified to AS81934 (formerly MIL-B-81934). For additional information please refer to the attached documentation.

In 1971 AURORA BEARING COMPANY entered the rod end and spherical bearing market and soon became a major force in the rod end industry. The AURORA BEARING product potfolio today includes both Aerospace / Military and Commercial / Industrial rod ends and standard spherical bearings in inch and metric systems while special bearings can be designed and manufactured on request. Different series of these bearings are separately presented together with respective documentation.

AURORA BEARING MM & MB Series include Precision General Purpose Male Rod Ends with the following features. Rod ends in these series are equivalent to RBC® HEIM® BEARINGS part numbers shown in the parenthesis.

Body - Low carbon steel, protective coated for corrosion resistance. Size 16 standard series body is alloy steel not heat treated.

Ball - Alloy steel, heat treated, hard chrome plated.

Race - Low carbon steel, protective coated for corrosion resistance.

Grease Fitting -  supplied without grease fittings. When a grease fitting is required, specify by adding suffix "Z" or "F". Ex.: MM-6Z = Zerk Type Fitting MM-6F = Flush Type Fitting.

Load ratings apply only to rod ends without grease fittings.

PTFE Liners available upon request. Specify by adding suffix "T". Ex.: MM-6T.

The HEIM® BEARINGS company has been acquired by RBC® BEARINGS, a leader in the world of highly engineered bearing products. 

HEIM® BEARINGS produces the industry's widest range of rod end bearing sizes (aka rod ends) in  the following four grades (types): precision, aircraft, military and commercial with each grade including different series suitable for respective application requirements. HEIM® BEARINGS are made from different materials featuring among others high strength two piece designs, high capacity designs, self-lubricating options and thermoplastic races or Teflon® liners. Please consult the supplied table on different grades and series offered.

- Precision rod ends are manufactured to tight tolerances for applications requiring improved linkage accuracy and reduced looseness. 

- Aircraft rod ends use premium materials, and have magnafluxed rod end bodies. Originally intended for aircraft applications, aircraft rod ends are used in many industrial applications where a high degree of reliability is required

- Military rod ends are produced in strict accordance with all applicable military specifications and are typically used in military and commercial aviation applications, or when Mil-Spec approval is required

- Commercial rod ends are produced using standard materials and manufacturing methods, and consist an economical choice for industrial applications

The HEIM® BEARINGS ME/AS81935/1 and FE/AS81935/2 series are military standard, high capacity self lubricating rod ends, male and female threaded respecively, using HEIM® UNIFLON® liner approved to SAE-AS81820 (formerly MIL-B-81820). Their rod end bodies are made from 4340 alloy steel, heat treated, magnetic particle inspected, cadmium plated and chromate treated. Balls  are made from 440C on 17-4PH race inserts and heat treated.

Letters “L” and “K” to prefix indicate Left Hand thread and Keyway respectively.

Please refer to the supplied chart for technical specifications and the RBC® HEIM® Bearings Catalog for additional information.

KAMAN CORPORATION bearings include a wide range of spherical bearings, rod ends and journal bearings. 

KAMAN KAMATICS Metal-To-Metal Self-Lubricating Spherical Bearings are designed with conventional stainless steel alloys, or other specialized alloys based on application, temperature and environment and come with KAron™ self-lubricating liners. They  are maintenance free and provide increased reliability and longer application life, reducing operating cost in challenging applications across industries.  They are offered in different series outlined below, in inch and metric systems and used in a a variety of applications in  aerospace (commercial fixed wing aircrafts), engines,commercial and military helicopters, heavy industry, hydropower, or marine vehicles.

KR-CN Series. MS14104 qualified bearings, narrow, chamfered outer race, -65° F to +325° F

KR-CNG Series. MS14101 qualified bearings, narrow, grooved outer race, -65° F to +325° F

KR-CW Series. MS14102 qualified bearings, wide, chamfered outer race, -65° F to +325° F

KR-CWG Series. MS14103 qualified bearings, wide, grooved outer race, -65° F to +325° F

KR-CN/4 Series. MS81820/4 qualified bearings, lined bore, narrow, chamfered outer race, -65° F to +325° F

KR-CNG/1 Series. MS81820/1  qualified bearings, lined bore, narrow,  grooved outer race, -65° F to +325° F

KR-CW/2 Series. MS81820/2 qualified bearings, lined bore, wide, chamfered outer race, -65° F to +325° F

KR-CWG/3 Series. MS81820/3 qualified bearings, lined bore, wide, grooved outer race, -65° F to +325° F

KR-CE Series. Extended inner race bearings, high misalignment, chamfered outer race

KR-CEG Series. Extended inner race bearings, high misalignment, grooved outer race

KR-C Series. Miniature Series bearings, chamfered outer race

For additional information and specifications please refer to the supplied documentation.

The RBC® BEARINGS offers a full line of airframe control ball bearings to the aerospace industry  in both “Standard” and “Precision” series. The prefix “M” in a bearing number indicates that it is of a precision series. Although designed and manufactured under demanding quality control requirements for airborne systems, these bearings have been successfully used in many industrial applications, where oscillatory movement, high loads, or corrosive environments are prevalent.

RBC® BEARINGS airframe control ball bearings conform to SAE-AS7949 (formerly MIL-B-7949) and many major OEM specifications. These bearings are of lightweight design, corrosion-resistant, grease-lubricated, and typically sealed. Airframe control bearing rings and balls are made of hardened bearing alloy, AISI 52100, with all exposed surfaces, except bearing bore, caps and seals, plated for corrosion protection. For improved corrosion protection, RBC® BEARINGS  supplies bearings made of hardened stainless steel alloy, AISI 440C. This alloy may be passivated or plated with cadmium or zinc nickel for enhanced corrosion protection.

The RBC® BEARINGS MKP/MKP-A SAE-AS7949 Precision Series airframe control bearings are single row, heavy duty (MKP) or medium duty (MKP-A) radial ball bearings with PTFE seals and CRES sealcaps. MKP Series bearings conform with MS27640-R specifications while those of MKP-A Series with MS27641-R. External surfaces (except bore, caps, and seals) are cadmium plated. They come prelubricated for life and are also offered with CRES 440C material and/or zinc nickel plating per OEM specifications. For additional information please refer to the supplied documentation.