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Shaft holders / round flange, square flange, two-sided flattened round flange / one-piece (BTHC8-MB)

Shaft holders / round flange, square flange, two-sided flattened round flange / one-piece BTHC8-MB

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  • Shaft holders / round flange, square flange, two-sided flattened round flange / one-piece
  • Shaft holders / round flange, square flange, two-sided flattened round flange / one-piece
  • Shaft holders / round flange, square flange, two-sided flattened round flange / one-piece
  • Promotional pricing ends 30/11/2024
  • Volume Discount

MISUMI

MISUMI

Product Details:

Manufacturer part number: BTHC8-MB

Brand: MISUMI

Price: 19.13 €

Delivery time: 7 Days


Technical Data:

Hole Dia. D: 8 mm

Material: [Aluminum] EN AW-6061 Equiv.

Surface Treatment: Black Anodized Aluminum

Flange Shape Type: Standard

Flange Shape: Compact Flanged


  • Order quantities extended (D-JIT)
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BTHC8-MB

Back to the Category Shaft Holders

Technical Drawing

 

Shaft Supports/Flanged Mount/Thick Sleeve:Related Image

Available dimensions and tolerances can be found under the tab More information .
 

Basic properties (e.g., material, hardness, coating, tolerance)

 

TypeThrough Mounting HolesTapped Mounting HolesMaterialSurface Treatment
Round FlangedSquare FlangedCompact FlangedRound FlangedCompact Flanged
StandardSTHRBSTHSBSTHCBSTHRBTSTHCBTGeneral Structural SteelBlack Oxide
STHRSTHSSTHCSTHRTSTHCTElectroless Nickel Plating
SSTHRSSTHSSSTHCSSTHRTSSTHCTEN 1.4301 Equiv.-
ATHRATHSATHC--Aluminum Alloy 6000 seriesClear Anodize
Long SleeveSTHRBLSTHSBLSTHCBL--General Structural SteelBlack Oxide
STHRLSTHSLSTHCL--Electroless Nickel Plating
SSTHRLSSTHSLSSTHCL--EN 1.4301 Equiv.-
See Alterations section for inclusion of a Hex Socket Set Screw.

Further specifications can be found under the tab More information.
 

Composition of a product code
 
 Part Number
 STHRL10

Alterations

Shaft Supports/Flanged Mount/Thick Sleeve:Related Image
General Information


Shaft Holder Selection Details

- Material: aluminum, stainless steel, steel
- Coatings: uncoated, burnished, nickel-plated, clear anodized, black anodized
- ISO tolerances: H7
- Perpendicularity: 0.02 mm
- Inside diameter: 3 to 50 mm
- Shaft fastening: clamping screw, with keyway, slotted clamping, with clamping lever, two-parts, with hinge
- Basic shapes: round flange, guided round flange, compact flange, square flange, T-shape, L-shape, block shape, round
- Shaft holder fastening: through hole, with cylinder pin bore, with countersunk bore, internal thread


Description/Basics

Shaft holders serve as fastener between a rigid shaft (axis) and an application.

The basic task of shaft holders, also known as shaft supports, is the horizontal or vertical mounting and fastening of axles, linear shafts and rotary shafts.

Unlike bearings with housing, shaft holders do not have a ball bearing. Shaft holders are used to fix rigid axles and shafts on which rotating or linearly moving components are located. This means that shaft holders are used in rotary and linear applications.
 


Application example of an axle support with linear shaft

Shaft holders primarily transfer compressive loads and tensile loads from the axis to the base of the application. Depending on the application and the load applied, the wall thickness of the shaft mount must be selected accordingly.

The shaft receiver of the shaft holder is provided by default with an H7 or 0 / +0.1 fitting bore. Therefore, the ISO shaft tolerances g6, f8 and h5 are suitable for connecting the shaft. The MISUMI shaft holders can be configured via the option [HC] in the shaft height in up to 0.1 mm increments. This allows the shaft position to be precisely aligned to the required height of the shaft.
With the option [MB], the grub screw of the shaft holder can be added to the variant with clamping screw. You can see whether this option is available in the Section ‘Alterations’. Alternatively, MISUMI also offers grub screws individually in different variations.
 

Shaft fastener

MISUMI offers various clamping options for the shaft holders.

Shaft holder with grub screw

The standard version of the shaft mount is a shaft holder with clamping screw. This method of fixing the shaft is clamped in the shaft holder with a clamping screw (grub screw). In this type of fixing, the shaft is generally provided with a flat surface, because this increases the clamping surface, which is particularly advantageous for flat grub screws. Another advantage of the flat surface is that the running surface of the shaft is not deformed by the clamping pressure of the grub screw. Therefore, it reduces the risk of tilting during the disassembly of the shaft.
Another option for protecting the running surface of the shaft in the shaft holder is the use of a grub screw with tappet or a pressure piece made of a soft material (e.g., plastic or brass).


Application example: shaft holder with grub screw and pressure piece – (1) Shaft holder, (2) Shaft holder, (3) Pressure piece, (4) Linear shaft

Shaft holder with slot

A further variant of shaft mounting represents fastening through a shaft holder with a clamping slot. The main advantage of shaft blocks with slotted clamping is that almost the entire contact surface of the shaft holder is used for clamping the shaft. The result is a uniform distribution of the clamping force. This means that the shaft can be connected with increased clamping force without damaging it. MISUMI offers shaft brackets with slot clamps with vertical and horizontal slots.


Drawing: shaft block with slot clamping


Shaft holder with slot and clamping lever

In applications where the shafts often have to be adjusted in axial direction, a shaft holder with clamping lever can be helpful. This shaft holder is structurally the same as a shaft holder with a clamping slot. However, a clamping lever is installed on this shaft holder instead of the clamping screw, which builds up the clamping pressure. Therefore, it can be readjusted without the requirement of an additional tool.


Drawing: shaft holder with clamping lever

Shaft holder with flange

For applications with limited installation space, a round shaft flange can be a suitable variant. A shaft flange is often used in vertical stroke applications. This is a separate design at MISUMI. It can be configured with slotted clamping and clamping screw.


Drawing: shaft flange with slotted clamping and clamping screw

Shaft holder with flange and keyway

The shaft holder with keyway is a special form of the shaft holder at MISUMI. This special form extends the range of application of the shaft holders and has a variety of special functions compared to a standard shaft holder.


Drawing: keyway shaft flange

Shaft holder with flange for rear mounting

Another special form of the shaft holder at MISUMI is the shaft flange for rear mounting of the shaft. With this shaft holder, the back of the shaft flange has a counterbore for a cylinder head screw that secures the shaft. For this purpose, it is necessary that the shaft is provided with an internal thread at the shaft end. This method of fixing does not require any further clamping of the shaft.


Drawing: rear mount shaft holder

Round shaft holder

The round shaft holder is the combination of a compact version of a shaft flange and a shaft collar. The round shaft bracket has mounting holes on the front and slotted clamps. In contrast to the flanged shaft holder, the outer mounting flange is omitted for the round shaft holder. Therefore, it requires less space than the conventional shaft flange. As a result, it is better suited for applications with limited space.


Drawing: round and compact shaft holder

Two-part shaft holder with slot

For shafts that require frequent maintenance, an application can be equipped with a two-part shaft holder. With a two-part shaft holder, the upper part of the shaft holder is fixed in place with two screws and can be easily assembled and disassembled. During maintenance, the previously adjusted shaft holder can remain in its position and do not need to be readjusted. These shaft holders have two opposite slots and secure the shaft via the slot clamp. The advantages of slot clamping are that almost the entire contact surface of the shaft holder is used for clamping the shaft. This causes a uniform distribution of force, which allows the shaft to be fixed with increased clamping force without damaging it.


Drawing: two-part shaft holder, two-part shaft flange

Two-part shaft holder with slot and hinge

Another rare version of two-part shaft brackets is the hinged shaft holder. These shaft holders simplify the assembly and disassembly of the shaft compared to common shaft holders. Another advantage of this variant over the conventional two-part shaft holder is that the upper part remains fixed to the shaft holder in loosened state and is thus secured against loss.


Drawing: shaft holder with hinge

As an alternative to a shaft holder, a column base can also be used. These offer extremely precise positioning due to their precise concentricity. For shafts that need to be mounted for rotary movement, MISUMI offers shaft holders with integrated ball bearings (bearings with housing).
 

Areas of Application

Since each shaft requires a connecting element for support and fastening, shaft holders are necessary connecting means for a variety of applications. MISUMI has a wide product range of shaft holders to meet a wide variety of requirements. MISUMI offers the right axle holder depending on the application and shaft alignment. Through the various mounting options, as well as selectable geometries, diameters, configurable shaft heights and shaft fastening types, MISUMI shaft supports offer a wide range of possible uses and individual utilization for mechanical engineering and plant engineering across many industrial sectors.


Materials

MISUMI shaft holders are available in aluminum, steel, and stainless steel. Shaft holders can be cast or machined from these materials.
 

Dimensions

Drawing: axle holder with chamfered round flange

Drawing: round shaft flange

Drawing: shaft flange with guided round flange

Drawing: round shaft holder

Drawing: shaft holder in T-shape

Drawing: shaft holder in L-shape

Drawing: shaft holder in block form

 

Instructions for Use/Installation Information


Instructions for use

MISUMI offers shaft holders in very small and low block shapes for very limited installation spaces. Thanks to the lateral mounting holes, a shaft to be mounted very low in an application. These shaft holders allow a shaft height of approx. 5 mm, depending on the shaft diameter.


Comparison of a standard and low installation height shaft holder
(1) Shaft holder in high block shape, (2) Shaft holder in block shape, (3) Shaft holder in T-shape, (4) Shaft holder in low T-shape, (5) Low two-part shaft holder


Installation Information

Drawing: shaft flange with through-holes

Drawing: shaft holder with counterbore

Drawing: shaft flange with through-hole and dowel pin holes

Drawing: guided shaft flange with through-holes

Drawing: shaft flange drawing with continuous female thread

Drawing: female-threaded shaft support

 

Application examples

Application example: shaft support in T-shape and linear shafts

Application example: shaft flange

Application example: shaft holder with guide flange

Application example: block-shaped shaft support with slot clamping

 

Supplementary article


Linear waves


Rotary axes


Grub screws


Lever


Cylindrical pins/tension pins/offset pins


Industrial applications
3D printer industry
Automotive industry
Pharmaceutical industry
Packaging industry

 

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  1. 1
Part Number
BTHC8-MB
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
?
RoHSHole Dia. D
(mm) 		Material Surface Treatment Flange Shape Type Flange Shape MB (With Hex Socket Set Screw) Mounting Hole Type Set Screw M (Coarse)

19.13 €

1 Available 7 Days 108[Aluminum] EN AW-6061 Equiv.Black Anodized AluminumStandardCompact FlangedProvidedThrough Hole3

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Back to the Category Shaft Holders

Technical Drawing

 

Shaft Supports/Flanged Mount/Thick Sleeve:Related Image

 

Specification Tables

 

Part NumberSleeve Thickness (N)LL1D1HTℓℓ1M (Coarse)PKWP1Fd1M1 (Coarse)
TypeDH7
Standard - Through Mounting Holes 3 +0.010
0		2.510-82237-M31516815-3.5-
Round Flanged
STHRB
STHR
SSTHR
ATHR		Square Flanged
STHSB
STHS
SSTHS
ATHS		Compact Flanged
STHCB
STHC
SSTHC
ATHC		 4 +0.012
0		10924371719917
 5 1210253.5718201018
 6 31512283.5720221220
 8 +0.015
0		216122851020221620
8M*2M44.5M4
 10 20143012M3222318223.5-
10M*2M44.5M4
Standard Type with Tapped Mounting Holes (Only for D dimension denoted with *2 mark)*112*2+0.018
0		2430163661515M4262820264.5M4
STHRBT
STHRT
SSTHRT
 
 		STHCBT
STHCT
SSTHCT
 		 13 2.5-1838-28302228
 15*23020401830322430
*116*233248224219163233262816
 18 532-2850820-M539393231225.5M5
*120*2+0.021
0		432482850820163939323122
Long Sleeve Type (Only for D dimension denoted with *1 mark)*125*238573355823194444373624
STHRBL
STHRL
SSTHRL		STHSBL
STHSL
SSTHSL		STHCBL
STHCL
SSTHCL		*130*23866102419M652524241276.6M6
 35 +0.025
0		550-45801030-65655556339M8
 40 106090107575656538
 50 70100108590757443
Tapped Mounting Hole Type is available only for D dimension denoted with *2 mark.  Long Sleeve Type is available only for D dimension denoted with *1 mark.  Only EN 1.0038 Equiv. and EN 1.4301 Equiv. are applicable to D dimension 8M and 10M (EN AW-6061 Equiv. is not applicable).
 
Alterations

Shaft Supports/Flanged Mount/Thick Sleeve:Related Image
 

Basic information

Shape Flange Type Shaft Mounting Method Set Screw Type Machined Products
Thickness Standard Dowel Holes Not Provided Clamping Lever Not Provided

This page is Shaft holders / round flange, square flange, two-sided flattened round flange / one-piece, part number BTHC8-MB.
You can find the detail information about specifications and dimensions on part number BTHC8-MB.

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Basic Attributes

  • Type

    • ATHC
    • ATHR
    • ATHS
    • BTHC
    • BTHR
    • SSTHC
    • SSTHCL
    • SSTHCT
    • SSTHR
    • SSTHRL
    • SSTHRT
    • SSTHS
    • SSTHSL
    • STHC
    • STHCB
    • STHCBL
    • STHCBT
    • STHCL
    • STHCT
    • STHR
    • STHRB
    • STHRBL
    • STHRBT
    • STHRL
    • STHRT
    • STHS
    • STHSB
    • STHSBL
    • STHSL

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  • Hole Dia. D(mm)

    • 3
    • 4
    • 5
    • 6
    • 8
    • 10
    • 12
    • 13
    • 15
    • 16
    • 18
    • 20
    • 25
    • 30
    • 35
    • 40
    • 50

    Clear

  • Material

    • Steel
      • General Structural Steel
    • Stainless Steel
      • EN 1.4301 Equiv.
    • Aluminum
      • EN AW-6061 Equiv.
      • Aluminum Alloy 6000 series

    Clear

  • Surface Treatment

    • Not Provided
    • Black Oxide
    • Electroless Nickel Plating
    • Black Anodized Aluminum
    • Clear Anodized Aluminum

    Clear

  • Flange Shape Type

    • Standard
    • Long Sleeve

    Clear

  • Flange Shape

    • Compact Flanged
    • Round Flanged
    • Square Flanged

    Clear

  • MB (With Hex Socket Set Screw)

    • Not Provided
    • Provided

    Clear

  • Mounting Hole Type

    • Tapped Hole
    • Through Hole

    Clear

  • Set Screw M (Coarse)

    • 3
    • 4
    • 5
    • 6

    Clear

  • Filter by CAD data type

    • 2D
    • 3D

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    • Same day
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    • 16 Days or Less

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Optional Attributes

Variation of this product

Part Number
ATHC12-MB
ATHC13
ATHC13-MB
BTHR10
BTHR10-MB
BTHR12
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountStandard
Shipping Days
?		RoHSHole Dia. D
(mm) 		Material Surface Treatment Flange Shape Type Flange Shape MB (With Hex Socket Set Screw) Mounting Hole Type Set Screw M (Coarse)

23.19 €

1 Available 7 Days 1012[Aluminum] Aluminum Alloy 6000 seriesClear Anodized AluminumStandardCompact FlangedProvidedThrough Hole4

21.22 €

1 Available 5 Days 1013[Aluminum] Aluminum Alloy 6000 seriesClear Anodized AluminumStandardCompact FlangedNot ProvidedThrough Hole-

24.79 €

1 Available 7 Days 1013[Aluminum] Aluminum Alloy 6000 seriesClear Anodized AluminumStandardCompact FlangedProvidedThrough Hole4

17.52 €

1 Available 5 Days 1010[Aluminum] EN AW-6061 Equiv.Black Anodized AluminumStandardRound FlangedNot ProvidedThrough Hole-

18.75 €

1 Available 7 Days 1010[Aluminum] EN AW-6061 Equiv.Black Anodized AluminumStandardRound FlangedProvidedThrough Hole3

20.48 €

1 Available 5 Days 1012[Aluminum] EN AW-6061 Equiv.Black Anodized AluminumStandardRound FlangedNot ProvidedThrough Hole-

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