Founded in 1957, Rotor Clip has grown to become the world leader in the manufacture and delivery of rings, springs and clamps. We’re positioned globally to share our product knowledge and expertise and in meeting your delivery requirements.

Founded in 1957, Rotor Clip has grown to become the world leader in the manufacture and delivery of rings, springs and clamps. We’re positioned globally to share our product knowledge and expertise and in meeting your delivery requirements.

With Product Engineers, Quality Engineers, Metallurgists and Sales Engineers, our teams are at your disposal to ensure you have the information and technical expertise required to find the right part for your application.

Mar 6, 2014 — It's a legitimate question, considering that coarse threads are stronger and have an overall greater resistance to cross-threading and stripping ...

Elastic deformation of an assembly (retained part, retaining ring and groove wall) where the retained part has a corner radius or chamfer can be calculated with the following formulas:

Our service doesn’t stop at the manufacture of our parts. We ensure that our parts are packaged the way way you want them. With a variety of packaging options available to ensure your parts arrive in excellent condition to extend shelf life, and allow you to meet schedule and cost projections by simplifying your assembly and installation.

May 13, 2024 — However, the 135 degree angle will give a gentler cut which is better suited to harder materials. Using a 118 degree point angle in a hard ...

Although there are many types of both taper pipe and straight pipe threads, the most common in general usage is NPT (National Pipe Taper). This thread has 3/4" ...

Our passion is creating the best rings, springs, and clamps. Our mission is to make your work a success. We are here for you.

Dynamic conditions most often encountered in retaining ring assemblies include sudden loading, impact, vibration, and relative rotation. Very often the loading pattern is cyclical in nature and may induce fatigue in the assembly. Where dynamic loads are likely to exist, it is necessary that actual tests of such applications be made by the ring user to insure proper functioning of the assembly. The following formulas are given for calculating the ring and or groove thrust load capacity for various conditions.

Maximum allowable static thrust capacities for rings normally used with grooves are listed in the data charts for each ring type. The load limits are given for rings (Pr or P’r) and grooves (Pg).

When the following materials are used, multiply the allowable thrust load of the groove by the conversion factor shown below.

Jan 8, 2016 — T1500Z, T3000Z, T1000A, and T1500A cermet grades.

Formulas for determining ring and groove load limits — with sample calculations for Series HO internal rings and Series SH external rings — are given below. The loads are calculated for retained parts having sharp corners. Correction factors (Gf) for calculating Pr and Pg are given in Table 2. The correction factors are based upon the load characteristics of the rings.

NOTE: Relative rotation applies to the following rings made of standard materials when used in grooves: Series HO, BHO, VHO, HOI, SH, BSH, VSH, C,SHI, BE, E, RE, SHR, PO, SHF and SHM. Series LC and EL are not affected.

After you have taken this measurement, you can obtain the corner radius by dividing your measurement by 2. For example, if your plate, glass or other item ...

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The values for Pr or P’r are applicable only when the ring is installed in a housing or on a shaft made of hardened steel where the thrust load capacity of the groove is equal to or greater than that of the ring. When the ring is seated in a groove cut in softer material, and Pg is less than Pr or P’r, Pg becomes the limiting factor in the assembly.

When a retained part rotates relative to and exerts thrust on the ring, frictional forces act on the ring body. Relative rotation can reduce substantially the thrust capacity of the assembly. The use of a keyed washer or other non-rotating device between ring and retained part to eliminate relative rotation should be considered.

When there is radial play between the retained part and the shaft or housing, such play must be treated as though the retained part had a chamfered corner. The magnitude of the chamfer should be considered equal to the play. Loading data for rings abutted by chamfered parts (P’r) as shown in the specific ring data charts must be considered. (See CORNER RADII & CHAMFERS)

To prevent the rings from being “walked out” or otherwise unseated from the groove, maximum allowable rotating thrust loads may be calculated from the following formula:

Rotor Clip holds extensive stock of both  standard and exotic alloys. Both standard and special materials are readily available to be transferred to production for both standard or custom parts at short notice.

Rotor Clip Wave Springs are highly engineered to save both axial and radial space in an application. With sizes ranging from .118″ to 24″ (3 mm to 610 mm), we provide custom options and expert engineering support from prototype to production, ensuring the perfect spring solution for your needs.

For this example, assume that the edge margin will only be half the listed catalog value or, y/d=1.5. The above equation is as follows:

NOTE: If the allowable thrust load capacity of the ring (Pr) or the groove (Pg) is less than P”r, Pr or Pg — whichever is lower — becomes the limiting factor in the assembly.

This can occur when a surge in thrust load is transmitted to a ring installed in a tight assembly, without play between the retained part and the ring. Sudden loads of this nature should not exceed, at their maximum, 50% of the allowable static thrust load (Pr or Pg, whichever is lower).

When the actual corner radius or chamfer is less than the listed maximum, the allowable thrust load of the assembly increases proportionately in accordance with the following formulas:

Rotor Clip is proud to be the only manufacturer of every style of retaining ring. With our precision manufacturing capabilities, we offer standard and custom parts in sizes ranging from .040″ to 47″ (1 mm to 1200 mm). Coiled from wire or stamped from strip’, we engineer the right retaining ring solution for the right application, every time.

Rotor Clip holds extensive stock of both  standard and exotic alloys. Both standard and special materials are readily available to be transferred to production for both standard or custom parts at short notice.

Our service doesn’t stop at the manufacture of our parts. We ensure that our parts are packaged the way way you want them. With a variety of packaging options available to ensure your parts arrive in excellent condition to extend shelf life, and allow you to meet schedule and cost projections by simplifying your assembly and installation.

Example: SH-50 external retaining ring installed on a cold-rolled steel shaft. The catalog specifications for this ring call; for a minimum edge margin of 0.048″ and a groove depth of 0.016.” Our formula is as follows:

Jun 6, 2016 — Right now im running 3000 rpm at 16ipm and it chatters but still leaves a finish good enough to pass. Accupro's speed and feed charts puts ...

With Product Engineers, Quality Engineers, Metallurgists and Sales Engineers, our teams are at your disposal to ensure you have the information and technical expertise required to find the right part for your application.

These formulas provide for a wall thickness that is safe for allowable groove thrust loads (Pg) calculated with the formula at the right. If substantially lighter loads will be encountered and a thinner wall is desired, actual tests are recommended.

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Square Carbide Insert Knives ... Inserts that are square. All sides equal. We offer inserts with sharp corners, some rounded, and some with radius faces / cutting ...

Allowable load capacities for rings (Pr) apply only to standard thickness rings made of standard materials using the shear strength values listed in Table 1. When the following special materials are used, multiply the allowable thrust load of the ring by the conversion factor shown below.

Permanent deflection of ring assemblies (retained part, retaining ring and groove wall), permitting movement of the retained parts, is negligible when loads do not exceed the governing allowable thrust load (static, impact, vibration, etc. — whichever is present).

For maximum thrust capacity in both static and dynamic loading, the abutting face of the retained part should have a square corner. Fit of the retained part in the housing or on a shaft should allow reasonably concentric uniform loading against the ring.

The allowable load of a part in which a retaining ring groove is cut depends upon the ultimate tensile strength and tensile yield strength of the material used, and on the bearing area of the ring against the groove wall. For internal rings used in bores and housings — and external rings assembled on hollow shafts — wall thickness dimension w, illustrated below, can be calculated from the formulas:

There is sufficient edge margin for the groove to withstand the maximum thrust load of 550lbs. listed in the catalog specifications. If an application requires an edge margin less than the recommended specifications, it is necessary to calculate the thrust load (Pg) – capacity of the groove, to determine if the reduced margin is capable of handling the anticipated thrust load. The following formula applies (Note: See Correction Factors table for Gf value; Yield Strength of Groove Material for σy value; Edge Margin Graph for K1 value; Nomenclature Table for remaining catalog specifications):

Finite Element Analysis shows stress gradients for a retaining rings in an application with insufficient edge margin. When loaded, the high stress region extends over the entire groove wall to the end of the shaft (or housing) and the groove wall actually distorts. Under these conditions, the ring would buckle, possibly leading to catastrophic failure.

ISO 2904 Metric Trapezoidal(ACME) Threads ... Comparison of ISO and DIN Standards.ISO metric trapezoidal screw threads standard, ISO 2904 - 1977, describes the ...

All of the formulas above and the values for Pr given in the data charts for each ring type are calculated for assemblies in which the retained parts have square corners. If the abutting face of the retained part has a corner radius or chamfer, the assembly’s thrust load capacity will be lower. A Series HO-100 ring which abuts a square-cornered part, for example, has a static thrust capacity of 5,950 lbs. The same ring, seated next to a part having the maximum allowable corner radius or chamfer, has an allowable load of 1,650 lbs.

Maximum allowable corner radii and chamfers for each ring size are listed in the charts with corresponding static thrust capacities. If these thrust capacities are not sufficient for the assembly, a rigid square-cornered flat washer should be inserted between the part and the ring. The thrust capacity of the assembly will then be approximately the same as if a square-cornered retained part had been used.

2018111 — Work hardening, also known as strain hardening, is the strengthening of a metal or polymer by plastic deformation.

Elastic deformation, which is a temporary displacement of the retained part under load, can be calculated by the following formula:

It is possible to calculate the approximate vibration load capacity of a ring and groove if there is a tight fit between the ring and the abutting retained part. (If there is space between the ring and the part, the load capacity must be calculated as impact.)

The allowable thrust loads listed in column Pg of the data charts for rings used in grooves are based upon a housing or shaft material of cold rolled steel with a tensile yield strength of 45,000 psi. In the case of Series VHO and VSH beveled rings, the values given are for minimum contact between ring and groove—i.e., engagement of the beveled edge of the ring with the beveled groove wall at a length equal to half of the groove depth (d/2).

The distance from the groove to the end of the shaft or housing is known as edge margin. Edge margin is a calculated distance based on the relationship between the edge margin (y) and the groove depth (d). When y/d≥3, the groove will withstand the maximum thrust load as indicated in the Rotor Clip catalog specification page for that particular size and type of retaining ring.