Timing belt pulleys / MR2 / flanged pulley deselectable / configurable / aluminium, steel (GPP21MR2090-K)

Timing belt pulleys / MR2 / flanged pulley deselectable / configurable / aluminium, steel GPP21MR2090-K
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Product Details:

Manufacturer part number: GPP21MR2090-K

Brand: MISUMI

Price: 15.55

Delivery time: 9 Days


Technical Data:

Belt Width: 9 mm

[T] Number of Teeth: 21

Pulley Shape: Shape K

Material: EN 1.1191 Equiv.

Surface Treatment: Electroless Nickel Plating


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GPP21MR2090-K

Back to the Category Toothed Pulleys/Timing Pulleys/Idler Pulleys

Technical Drawing - Toothed Pulleys/Timing Pulleys/Idler Pulleys

High Torque Timing Pulleys MR2 (GT) - 2mm PowerGrip® -:Related Image
Open the technical drawing in the new window
 

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

Basic Properties (e.g., material, hardness, coating, tolerance) - Toothed Pulleys/Timing Pulleys/Idler Pulleys

[ ! ]For Keyway Dimension Details, Click here

TypeBelt WidthMaterial*1Surface
Treatment
Attachment*1
Setscrews
6mm9mmPulleyFlange
MR2060MR2090
GPAAluminum
Alloy
Aluminum
Alloy
Clear AnodizeStainless
GPBBlack Anodize
GPKHard Clear Anodize*2
GPT1045 Carbon
Steel
Low Carbon
Steel
-Steel
(Black Oxide)
GPMBlack Oxide
GPPElectroless Nickel Plating

*1 Flanges are installed. Set screws are included with PU, NU & C bore hole specification.
*2 Hard Anodize Treatment: Film Hardness 300HV~


Further specifications can be found under the tab More Information.
 

Composition of a Product Code - Toothed Pulleys/Timing Pulleys/Idler Pulleys

 Part Number Pulley Shape Shaft Bore Specs., I.D. Z J Q R S T
(Shaft Bore Specs.: H, P, N, C)GPA20MR2060-A H6            
(Shaft Bore Specs.: V, F)GPT40MR2090-B-V6-Z10-J5        
(Shaft Bore Specs: Y)GPM60MR2090-B-Y8-    Q12-R12-S3-T3

Alterations - Toothed Pulleys/Timing Pulleys/Idler Pulleys

High Torque Timing Pulleys MR2 (GT) - 2mm PowerGrip® -:Related Image

 BC,TPC and SLH alternations are not available for inch bores


Here to the Overview of Options as PDF.

General Information - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Toothed pulley - synchronous pulley - belt pulley - product assortment

 

Selection details of toothed pulleys/timing pulleys/idler pulleys

- Material: aluminum, steel, stainless steel (stainless steel), plastic

- Coatings: uncoated, burnished, anodized, nickel-plated

- Profile form: 1.5GT, 2GT, 3GT, 5GT, P2M, P3M, P5M, P8M, S2M, S3M, S5M, S8M, S14M, T2.5, T5, T10, AT5, AT10, 5M, 8M, 14M, 8YU, H, L, MXL, XL, PowerGrip GT3: MR2, MR3, MR5

- ISO tolerances: H7

- Belt width (mm): 4, 4.8, 6, 6.4, 7, 7.9, 9, 9.5, 10, 12, 12.7, 15, 18, 19.1, 20, 25, 25.4, 26, 28, 30, 31, 38,1, 40, 50, 50.8, 53, 60, 74, 76.2, 100

- Belt width (inches): 0.19, 0.25, 0.31, 0.37, 0.5, 0.75, 1, 1.5, 2

- Number of teeth: 10 to 72

 

Description/Basics

The toothed pulley for mechanical engineering is intended for the transmission of force and torque. Timing pulleys enable a gear ratio of speeds through belt pulleys of different sizes. Timing pulleys are more efficient, durable and significantly more maintenance-friendly compared to chain transmissions.

How much torque and load a timing pulley can transmit depends on the width of the belt. The width of the belt must be calculated. It is recommended to ensure the belt is correctly tensioned. MISUMI already offers the suitable idler pulley and return rollers with integrated ball bearings. For design and design help follow this link.

Different profile shapes of the toothed belts and belt pulleys are responsible for the transmission of power. Depending on the positioning accuracy, the applied torque and the conveying weight, MISUMI offers the fitting pulley. Toothed belt drives are generally used in the industry in three areas:
Positioning: Timing pulleys is often used in 3D printers. A toothed pulley with a semi-circular profile (e.g., GT) is often used for the required position accuracy of a 3D printers. The round shape offers the benefit of little play when the direction changes.
Drive: toothed pulleys are also used for high torque. In most cases, a timing pulley with a rounded trapezoidal profile (e.g., S8M) is used. These are particularly well suited for the transmission of high forces, which occur in drives of various applications in order to drive mechanical components.
Conveying: toothed pulleys can also be used for transporting loads. A straight trapezoidal profile is often used for this purpose (e.g., AT). This toothed pulley shape offers a large surface for loading and transmitting of loads.

Which toothed pulley or timing pulley is the right one for your application depends on the respective task of the toothed belt drive. Different toothed disc profiles have proven themselves for each type of application.

Various bore hole shapes and fastening variants are available for shaft mounting. These allow fastening via set screws, keyways and by means of Mecha locks. Fastening via a clamping sleeve has the further advantage that it allows adjusting the alignment continuously. The MISUMI product assortment has these ready-to-install.

Application Examples - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Application example: idler pulley - idler pully toothed with chain tensioner - toothed pulley with chain tensioner

Application example: idler pulley
(1) Idler pulleys, (2) chain tensioner

Application example: return roller - return roller with cantilever pin - synchronous pulley with on-board disc - toothed pulley with on-board disc

Application example: deflection roller
S (1) Toothed pulleys with crimp disc, (2) nut, (3) washer, (4) cantilever shaft, (5) retaining ring

Application example: synchronous pulleys - toothed pulleys with toothed belts - toothed pulley with screw-on clamp

Application example: timing pulleys
(1) Flat head screw, (2) Timing pulley, (3) Timing belt, (4) Screw-on terminal

Application example: toothed belt drives - toothed pulleys with crimp disc - idler pulley with crimp disc - tensioning of the toothed belt

Application example: of toothed belt drives
(1) Toothed belt, (2) driven toothed pulley with crimp disc, (3) idler pulley with crimp disc, (4) driving toothed pulley with crimp disc

 

Industrial Applications

3D printer industry
Automotive industry
Pharmaceutical industry
Packaging industry

Part Number:  

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Part Number
GPP21MR2090-K
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
?
Belt Width
(mm)
[T] Number of Teeth Pulley Shape Material Surface Treatment Shaft Bore Dia. d
(inch)
Shaft Bore Spec.
(inch)
01.[H] Shaft Bore Spec. (Round Hole) 02.[P] Shaft Bore Spec. (Round Hole + Tap) 03.[N] Shaft Bore Spec. (New JIS Keyway Hole + Tap) 04.[NK] Shaft Bore Spec. (Shaft Bore Dia. 10 Keyway Width 4mm Height 1.8mm) 05.[C] Shaft Bore Spec. (Old JIS Keyway Hole + Tap) 06.[V] Shaft Bore Spec. (Stepped Hole) 07.[F] Shaft Bore Spec. (Stepped Hole: Counterbored Holes on the Hub Side) 08.[Y] Shaft Bore Spec. (Both Ends Stepped Hole)

15.55 €

1 Available 9 Days 921Shape KEN 1.1191 Equiv.Electroless Nickel Plating----------

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Back to the Category Toothed Pulleys/Timing Pulleys/Idler Pulleys

Technical Drawing - Toothed Pulleys/Timing Pulleys/Idler Pulleys

High Torque Timing Pulleys MR2 (GT) - 2mm PowerGrip® -:Related Image
Open the technical drawing in the new window

Specification Tables - Toothed Pulleys/Timing Pulleys/Idler Pulleys
 

■Teeth No. Size

mmTeeth No.
1314151617181920212224252628303234364042444548505660626872
P.D.8.288.919.5510.1910.8211.4612.112.7313.3714.0115.2815.9216.5517.8319.120.3721.6522.9225.4626.7428.0128.6530.5631.8335.6538.239.4743.2945.84
O.D.7.778.49.049.6810.3110.9511.5912.2212.8613.514.7715.4116.0417.3218.5919.8621.1422.4124.9626.2327.528.1430.0531.3235.1437.6938.9642.7845.33
D1212121414141416161820202222221214141820202020203030303434
F1212121414141416161820202222222525283032323235354444445050
E666888810101113131414141616182023232325253232323838


■Belt Width Size

mmBelt Width
MR2060MR2090
A7.410.4
W11.414.4
L19.023.0

◆mm                   ◆inch         
Part NumberShapePulley ShapePart NumberShapePulley Shape
TypeTeeth
No
Belt WidthAB・KBTypeTeeth
No
Belt WidthAB・KB
Shaft Bore Spec. (1mm Increment)Shaft Bore Spec. (1mm Increment)Shaft Bore Spec. (1mm Increment)
H(d)P(d)N(d)・C(d)VYH(d)P(d)N(d)・C(d)V・FHU(d)PU(d)NU(d)HU(d)PU(d)NU(d)
Round HoleRound Hole+TapKeywayed Bore + TapStepped HoleBoth Ends Stepped HoleRound HoleRound Hole+TapKeywayed Bore + TapStepped HoleInch Round HoleInch Round Hole+TapInch New JIS Key Groove Hole + TapInch Round HoleInch Round Hole+TapInch New JIS Key Groove Hole + Tap
   V(d)ZJY(d)Q・RS・T   V(d)
F(d)
ZJ      
   Z-d≥2(0.1mm increment)Q(R)-d≥2(0.1mm increment)   Z-d≥2(0.1mm increment)      
Al
GPA
GPB
GPK

Fe
GPT
GPM
GPP
12MR2060
*A : 7.4
*W : 11.4
*L : 19.0

MR2090
*A : 10.4
*W : 14.4
*L : 23.0
A

K
3--------33----Al
GPA
GPB
GPK

Fe
GPT
GPM
GPP
12MR2060
MR2090
A

K
------
1333313------
1433314------
1533315------
163~5352.0≤J≤W-2.0353~6
S+T≤W-3
3~53~516A・B--A・BA・B-
173~535353~53~517A・B--A・BA・B-
183~535353~53~518A・B--A・BA・B-
193~535353~53~519A・B--A・BA・B-
203~63・45・63・45・63~63~620A・B--A・BA・B-
213~63・45・63・45・63~63~621A・B--A・BA・B-
223~73~55~73~55~73~63~622A・B--A・BA・B-
243~93~75~93~75~93~73~724A-D--A-CA-C-
253~93~75~93~75~93~73~725A-D--A-CA-C-
263~103~85~103~85~103~83~826A-D--A-CA-C-
283~103~85~103~85~103~83~828A-D--A-CA-C-
303~103~85~103~85~103~83~830A-D--A-CA-C-
32A

B
4~124~1084~106~124~106~124~84~64~66~82.0≤J≤L-2.032AB-EB-EDB-DB-D-
344~124~108・10・NK104~106~124~106~124~104~84~86~1034 B-EB-ED-EB-DB-D-
364~144~108・10・NK104~126~144~126~144~104~84~86~1036BB-FB-ED-EB-DB-D-
404~164~128~124~146~164~146~164~144~1084~126~1440 B-GB-ED-EB-EB-ED
424~164~128~124~146~164~146~164~144~1084~126~1442 B-GB-ED-EB-EB-ED
445~195~158~135~177~195~177~195~165~128~115~147~1644 C-GC-FD-FC-GC-ED・E
455~195~158~135~177~195~177~195~165~128~115~147~1645 C-GC-FD-FC-GC-ED・E
485~215~178~165~197~215~197~215~165~128~115~147~1648 C-HC-GD-GC-GC-ED・E
505~215~178~165~197~245~197~245~165~128~115~147~1650 C-HC-GD-GC-GC-ED・E
565~215~178~165~197~245~197~245~165~128~115~147~1656 C-HC-GD-GC-GC-ED・E
605~285~248~225~267~285~267~285~265~228~175~247~2660 C-KC-JD-HC-KC-HD-G
625~285~248~225~267~285~267~285~265~228~175~247~2662 C-KC-JD-HC-KC-HD-G
685~285~248~225~267~285~267~285~265~228~175~247~2668 C-KC-JD-HC-KC-HD-G
725~345~308~265~327~345~327~345~305~268~205~287~3072 C-LC-KD-JC-KC-KD-H
Shaft Bore Dia. 9 is not available for Shaft Bore specification N.             Shaft Bore Dia.4.56.35 are selectable for Shaft Bore specifications H, P, V. J~K are not available for MR2060
Shaft Bore Dia. 8, 9, 11, 13, 14, 17, 21-26 are not available for Shaft Bore specification C.  

 

Inch Bore Specifications Inch Bore Specifications Inch Bore Specifications
No.Decimal
(Inch)
Nominal
(Inch)
Decimal (mm)Set Screw
size
b (W)
(inch)
t1 (T)
(inch)
 No.Decimal
(Inch)
Nominal
(Inch)
Decimal (mm)Set Screw
size
b (W)
(inch)
t1 (T)
(inch)
 No.Decimal
(Inch)
Nominal
(Inch)
Decimal (mm)Set Screw
size
b (W)
(inch)
t1 (T)
(inch)
A0.1251/83.175#5-40-- H0.7503/419.050#10-323/160.837 M1.3751 3/834.9255/16-185/161.518
B0.1883/164.763#5-40-- HJ0.81313/1620.638#10-323/160.900 MN1.4381 7/1636.5135/16-183/81.605
C0.2501/46.350#8-32-- J0.8757/822.2251/4-203/160.964 N1.5001 1/238.1005/16-183/81.669
D0.3135/167.938#8-323/320.357 JK0.93815/1623.8131/4-201/41.051 P1.6251 5/841.2755/16-183/81.796
E0.3753/89.525#8-323/320.421 K1.000125.4001/4-201/41.114 PQ1.6881 11/1642.8635/16-183/81.859
EF0.4387/1611.113#8-323/320.484 KLA1.0631 1/1626.9881/4-201/41.178 Q1.7501 3/444.4505/16-183/81.922
F0.5001/212.700#8-321/80.56 KLB1.1251 1/828.5751/4-201/41.241 QR1.8131 13/1646.0385/16-181/22.032
FG0.5639/1614.288#8-321/80.623 KLC1.1881 3/1630.1631/4-201/41.304 R1.8751 7/847.6255/16-181/22.096
G0.6255/815.875#10-323/160.709 L1.2501 1/431.7501/4-201/41.367 RS1.9381 15/1649.2133/8-161/22.160
GH0.68811/1617.463#10-323/160.773 LM1.3131 5/1633.3381/4-205/161.455 S2.000250.8003/8-161/22.223

Alterations - Toothed Pulleys/Timing Pulleys/Idler Pulleys

High Torque Timing Pulleys MR2 (GT) - 2mm PowerGrip® -:Related Image

 BC,TPC and SLH alternations are not available for inch bores


Here to the Option Overview PDF

Basic information

Type Timing Pulleys Belt Type MR2(for PowerGrip® GT®3) Timing Pulleys/Idlers Pulleys

This page is Timing belt pulleys / MR2 / flanged pulley deselectable / configurable / aluminium, steel, part number GPP21MR2090-K.
You can find the detail information about specifications and dimensions on part number GPP21MR2090-K.

Frequently Asked Questions (FAQ)

Question:

Do you have any belt pulleys without a hole?

Answer:

The MISUMI toothed pulleys always have a pilot bore. It is expanded depending on your configuration. It provides the advantage that the belt pulleys are already provided with a suitable shaft bore ready for installation. Therefore, it does not require time-consuming post-processing.

Question:

Do you have timing pulleys made of aluminum?

Answer:

The MISUMI online shop also offers timing pulleys or toothed pulleys in aluminum. Furthermore, we are also offering belt pulleys in steel and stainless steel. The return rollers and idler pulleys for the timing belts are also available in plastic.

Question:

Is a transmission with toothed belt pulleys possible?

Answer:

With toothed pulleys, a gear ratio is possible in a drive. The gear ratio is established based on the number of teeth on the belt pulleys. It should be ensured that the minimum number of teeth of the timing pulley disc is not undercut.

Question:

Which type of the toothed belt pulley can be clamped during assembly?

Answer:

There are a number of ways to install timing pulleys on a shaft. For applications that are not exposed to high torque, such as conveyors, it can be sufficient to fasten a timing pulley using clamping threaded pins. For this purpose, the shaft should have a flat surface.
For higher loads, a toothed pulley with a keyway can also be used.
A further variant is the fastening of a timing pulley via a conical chip sleeve. Depending on the type of Mecha lock, the timing pulley requires lateral internal threads, which can be added through additional options in the MISUMI online shop.
A timing pulley with a bore hole can also be combined with a Mech lock. MISUMI is offering this combination as a set.

Question:

Where do you position the tension roller?

Answer:

If an idler pulley should be utilised, it should be positioned on the sag side. This means that the idler pulley is attached to the side not subjected to pull.
Ideally, a toothed idler pulley is mounted on the inside of the toothed belt. The tensioning roller should always be larger than the smallest toothed idler pulley of the belt drive system.
If an idler pulley must tension the toothed belt from the outside, then a non-toothed (flat) idler pulley should be used. Cantilever pins, which MISUMI offers in various geometric versions, are suitable for fastening.

Question:

Which parallel key can be used for the toothed pulleys?

Answer:

The parallel key size is based on the shaft diameter. In this case, it is recommended using the MISUMI parallel keys, as they fit better when MISUMI toothed pulleys are used. See Overview available as PDF for keyway tolerances.

Question:

Is a timing pulley with a round profile better?

Answer:

Timing pulleys and round-profile timing belts are not recommended for every application. For example, the round profile shape is well suited for applications that require high positioning accuracy. Therefore, they are often used in 3D printers and scanners. Compared to other profile shapes, the round profile shape has a higher wear resistance. Another advantage of the round profile shape is the minimized play in the return (reverse play).

Question:

Which belt pulley is suitable for Gates toothed belts?

Answer:

The GT and EV timing pulleys are suitable for Gates’ toothed belts. However, these require you put attention to the slope (distance of the teeth) of the toothed belt. It must be checked whether these correspond to the selected toothed pulley.

Question:

Are the curtain discs necessary for the toothed pulleys?

Answer:

It is recommended using the smaller belt pulleys particularly with curb disc. The curb disk ensures that the toothed belt does not migrate down from the toothed belt pulley. Even with the smallest misalignment of a pulley, there may be a risk that the toothed belt will move and jump during operation.

Question:

How is the gearing of the toothed pulleys manufactured?

Answer:

The gear teeth of the MISUMI toothed belt pulley are mainly pushed. This ensures high manufacturing accuracy. As a result, the teeth fit precisely into the toothed belt profile of the timing belts and ensure optimal power and torque transmission.

Show more FAQ Close

Variation of this product

Part Number
GPB16MR2060-A
GPB16MR2090-A
GPB19MR2090-K
GPB21MR2090-K
GPK16MR2060-A
GPK19MR2060-K
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountStandard
Shipping Days
?
Belt Width
(mm)
[T] Number of Teeth Pulley Shape Material Surface Treatment Shaft Bore Dia. d
(inch)
Shaft Bore Spec.
(inch)
01.[H] Shaft Bore Spec. (Round Hole) 02.[P] Shaft Bore Spec. (Round Hole + Tap) 03.[N] Shaft Bore Spec. (New JIS Keyway Hole + Tap) 04.[NK] Shaft Bore Spec. (Shaft Bore Dia. 10 Keyway Width 4mm Height 1.8mm) 05.[C] Shaft Bore Spec. (Old JIS Keyway Hole + Tap) 06.[V] Shaft Bore Spec. (Stepped Hole) 07.[F] Shaft Bore Spec. (Stepped Hole: Counterbored Holes on the Hub Side) 08.[Y] Shaft Bore Spec. (Both Ends Stepped Hole)

11.41 €

1 Available 9 Days 616Shape A[Aluminum] Aluminum AlloyBlack Anodized Aluminum----------

11.43 €

1 Available 9 Days 916Shape A[Aluminum] Aluminum AlloyBlack Anodized Aluminum----------

13.72 €

1 Available 9 Days 919Shape K[Aluminum] Aluminum AlloyBlack Anodized Aluminum----------

13.91 €

1 Available 9 Days 921Shape K[Aluminum] Aluminum AlloyBlack Anodized Aluminum----------

11.41 €

1 Available 9 Days 616Shape A[Aluminum] Aluminum AlloyHard Clear Anodize----------

13.63 €

1 Available 9 Days 619Shape K[Aluminum] Aluminum AlloyHard Clear Anodize----------

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