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- Belt Width
- 15
- 25
- 30
- 40
- [T] Number of Teeth
- 18
- 19
- 20
- 21
- 22
- 24
- 25
- 26
- 28
- 30
- 32
- 34
- 36
- 38
- 40
- 44
- 48
- 50
- 60
- Pulley Shape
- Material
- EN 1.1191 Equiv.
- Aluminium
- EN AW-7075 Equiv. (Extra Super Duralumin)
- Aluminum Alloy 7000 series
- Shaft Bore Specifications (New JIS Keyway Hole + Tap) [N](mm)
- 55
[12–50/1mm jednotek] - Shaft Bore Specifications (Old JIS Keyway Hole + Tap) [C](mm)
- 12
- 15
- 16
- 18
- 19
- 20
- Shaft Bore Specifications (Round Hole + Tap) [P](mm)[12–70/1mm jednotek]
- Shaft Bore Specifications (Round Hole) [H](mm)[12–85/1mm jednotek]
- Shaft Bore Specifications (Stepped Hole) [V](mm)[12–85/1mm jednotek]
- Shaft Bore Specifications (Stepped Hole: Counterbored Holes on the Hub Side) [F](mm)[12–85/1mm jednotek]
- CAD
- 2D
- 3D
- Odhadované dodací dny
- Vše
- V rámci 9 pracovních dnů
Timing belt pulleys / S8M / flanged pulley selectable / configurable / material selectable / treatment selectable(Seznam čísel dílů: stránka 11)
Pozor
- Please note that the swaged flange options, NFC, RFC, and LFC, are not reflected in the CAD data.
Číslo dílu:
návrhy.Obrysový výkres a tabulka specifikací
| mm | Nominal | |||
| S8M150 | S8M250 | S8M300 | S8M400 | |
| A | 17.0 | 28.0 | 33.0 | 44.0 |
| W | 22.0 | 33.0 | 38.0 | 49.0 |
| L Number of Teeth 18 to 40 | 37.0 | 48.0 | 53.0 | 64.0 |
| L Number of Teeth 44 to 60 | 42.0 | 53.0 | 58.0 | 69.0 |
| dH7 Shaft Bore I.D. | M (Coarse) | Accessory Set Screws |
| 12 | M4 | M4 × 3 |
| 13 to 17 | M5 | M5 × 4 |
| 18 to 30 | M6 | M6 × 5 |
| 31 to 45 | M8 | M8 × 6 |
| 46 to 70 | M10 | M10 × 8 |
■Number of Teeth / Dimension
| mm | Number of Teeth | ||||||||||||||||||
| 18 | 19 | 20 | 21 | 22 | 24 | 25 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 44 | 48 | 50 | 60 | |
| P.D. | 45.84 | 48.38 | 50.93 | 53.48 | 56.02 | 61.12 | 63.66 | 66.21 | 71.30 | 76.39 | 81.49 | 86.58 | 91.67 | 96.77 | 101.86 | 112.05 | 122.23 | 127.32 | 152.79 |
| O.D. | 44.46 | 47.01 | 49.56 | 52.10 | 54.65 | 59.74 | 62.29 | 64.84 | 69.93 | 75.02 | 80.12 | 85.21 | 90.30 | 95.39 | 100.49 | 110.67 | 120.86 | 125.95 | 151.42 |
| D | 32 | 35 | 36 | 40 | 41 | 46 | 48 | 51 | 55 | 60 | 63 | 70 | 75 | 80 | 85 | 90 | 100 | 100 | 100 |
| F | 52 | 55 | 58 | 61 | 61 | 67 | 70 | 74 | 80 | 87 | 87 | 95 | 99 | 104 | 111 | 119 | 127 | 135 | 160 |
| E | 36 | 40 | 40 | 45 | 45 | 50 | 56 | 58 | 60 | 67 | 67 | 75 | 80 | 84 | 90 | 100 | 105 | 115 | 140 |
[ ! ] Shaft Bore Specs. H (Round Hole), V or F (Stepped Hole), Y (Both Sides Stepped Hole) and WB (Two-stepped Hole) do not have tapped holes.
[ ! ] The tolerance of the tap position dimension from the boss end face and pulley end face is ±0.3.
[ ! ] Unless otherwise specified except for teeth and F dimensions, the dimension tolerance conforms to JIS B 0405 Class m.
● Shaft Bore Specification Select shaft bore spec mark and each dim. from the table below. [ ! ] Surface treatment may not be applied to the shaft bores.
H round hole
P Round Hole + Tap
N New JIS Keyway + Tap
C Old JIS Keyway + Tap
[ ! ] No tapped holes or set screws.
[ ! ] For A-Shape pulley, the screw holes are set at around 120° to keep away from peaks.
V stepped hole
F Stepped Hole
(Counterbored Hole on the Hub Side)
Y Both Ends Stepped Hole
WB Two-stepped hole
[ ! ] No tapped holes or set screws.
[ ! ] Applicable to Shape B only
[ ! ] No tapped holes or set screws.
[ ! ] Applicable to Shape A only
[ ! ] No tapped holes or set screws.
[ ! ] Q (R)－Y ≥ 2
[ ! ] Applicable to Shape A only
[ ! ] No tapped holes or set screws.
[ ! ] Q－R ≥ 2
[ ! ] R－WB ≥ 2
| Type | Belt Width | [M]Material*1 | [S] Surface Treatment | [A]Accessory*1 Set Screws | ||||
| 15 mm | 25 mm | 30 mm | 40 mm | Pulley | Flange | |||
| S8M150 | S8M250 | S8M300 | S8M400 | |||||
| BLPA | ● | ● | ● | ● | Extra Super Duralumin Aluminum alloy | Aluminum alloy | Clear Anodize | EN 1.4301 Equiv. |
| BLPK | ● | ● | ● | ● | Hard Clear Anodized *2 | |||
| BLPN | ● | ● | ● | ● | Electroless nickel plating | |||
| BLPT | ● | ● | ● | ● | EN 1.1191 Equiv. | EN 1.0330 Equiv. | — | EN 1.7220 Equiv. (Black Oxide) |
| BLPM | ● | ● | ● | ● | Black Oxide Coating | |||
| BLPP | ● | ● | ● | ● | Electroless nickel plating | |||
*1The above materials and accessories might be changed to the ones equivalent to the originals.
*2 Hard clear anodize: film hardness 300 HV or more
Specification Table
| Part number | — | Pulley Shape | — | Shaft Bore Specs.: I.D. | — | Z | — | J | — | Q | — | R | — | S | — | T | |
| (Shaft Bore Specs.: H, P, N, C) | BLPA40S8M150 | — | A | — | N30 | ||||||||||||
| (Shaft Bore Specs.: V, F) | BLPK60S8M400 | — | B | — | F40 | — | Z60 | — | J25.0 | ||||||||
| (Shaft Bore Specs.: Y, WB) | BLPA20S8M250 | — | A | — | Y15 | — | Q20 | — | R23 | — | S3 | — | T15 |
| Part number | Pulley Shape | Pulley Shape | |||||||||||||||||
| Type | Number of Teeth | Type Nominal Width | A | B | |||||||||||||||
| Shaft Bore Specs.: 1 mm Increments / Selectable | Shaft Bore Specs.: 1 mm Increments / Selectable | ||||||||||||||||||
| H Round Hole | P Straight Bore + Tap | N・C Keyway + Tap | V Stepped Hole | Y Both Ends Stepped Hole | WB Two-stepped Hole | H Round Hole | P Straight Bore + Tap | N・C Keyway + Tap | V·F Stepped Hole | ||||||||||
| V | Z Z−d ≥ 2 | J (0.1 mm Increments) | Y (d), WB (d) | Q·R | S·T (0.1 mm Increments) | V·F | Z Z−d ≥ 2 | J (0.1 mm Increments) | |||||||||||
| Aluminum BLPA BLPK BLPN Steel BLPT BLPM BLPP | 18 | S8M150 S8M250 S8M300 S8M400 | A B | 12 to 32 | 12 to 26 | 12 to 26 | 12 to 30 | 14 to 32 | 3.0 ≤ J ≤ W−3.0 | 12 to 30 | 14 to 32 | 3 to 23 S+T ≤ W−3 | 12 to 28 | 12 to 22 | 12 to 20 | 12 to 26 | 14 to 28 | 3.0 ≤ J ≤ L−3.0 | |
| 19 | 12 to 36 | 12 to 28 | 12 to 28 | 12 to 34 | 14 to 36 | 12 to 34 | 14 to 36 | 12 to 31 | 12 to 25 | 12 to 20 | 12 to 29 | 14 to 31 | |||||||
| 20 | 12 to 36 | 12 to 30 | 12 to 30 | 12 to 34 | 14 to 36 | 12 to 34 | 14 to 36 | 12 to 32 | 12 to 26 | 12 to 22 | 12 to 30 | 14 to 32 | |||||||
| 21 | 12 to 41 | 12 to 32 | 12 to 32 | 12 to 39 | 14 to 41 | 12 to 39 | 14 to 41 | 12 to 36 | 12 to 30 | 12 to 24 | 12 to 34 | 14 to 36 | |||||||
| 22 | 12 to 41 | 12 to 34 | 12 to 34 | 12 to 39 | 14 to 41 | 12 to 39 | 14 to 41 | 12 to 37 | 12 to 30 | 12 to 25 | 12 to 35 | 14 to 37 | |||||||
| 24 | 12 to 46 | 12 to 40 | 12 to 40 | 12 to 44 | 14 to 46 | 12 to 44 | 14 to 46 | 12 to 42 | 12 to 34 | 12 to 28 | 12 to 40 | 14 to 42 | |||||||
| 25 | 12 to 52 | 12 to 40 | 12 to 40 | 12 to 50 | 14 to 52 | 12 to 50 | 14 to 52 | 12 to 44 | 12 to 36 | 12 to 28 | 12 to 42 | 14 to 44 | |||||||
| 26 | 14 to 54 | 14 to 45 | 14 to 45 | 14 to 52 | 16 to 54 | 14 to 52 | 16 to 54 | 14 to 47 | 14 to 39 | 14 to 31 | 14 to 45 | 16 to 47 | |||||||
| 28 | 14 to 56 | 14 to 48 | 14 to 48 | 14 to 54 | 16 to 56 | 14 to 54 | 16 to 56 | 14 to 51 | 14 to 43 | 14 to 35 | 14 to 49 | 16 to 51 | |||||||
| 30 | 14 to 63 | 14 to 50 | 14 to 50 | 14 to 61 | 16 to 63 | 14 to 61 | 16 to 63 | 14 to 56 | 14 to 46 | 14 to 38 | 14 to 54 | 16 to 56 | |||||||
| 32 | 14 to 63 | 14 to 55 | 14 to 55 | 14 to 61 | 16 to 63 | 14 to 61 | 16 to 63 | 14 to 59 | 14 to 49 | 14 to 45 | 14 to 57 | 16 to 59 | |||||||
| 34 | 16 to 67 | 16 to 60 | 16 to 55 | 16 to 65 | 18 to 67 | 16 to 65 | 18 to 67 | 16 to 66 | 16 to 56 | 16 to 48 | 16 to 64 | 18 to 66 | |||||||
| 36 | 16 to 72 | 16 to 65 | 16 to 55 | 16 to 70 | 18 to 72 | 16 to 70 | 18 to 72 | 16 to 71 | 16 to 61 | 16 to 50 | 16 to 69 | 18 to 71 | |||||||
| 38 | 16 to 76 | 16 to 65 | 16 to 55 | 16 to 74 | 18 to 76 | 16 to 74 | 18 to 76 | 16 to 76 | 16 to 65 | 16 to 50 | 16 to 74 | 18 to 76 | |||||||
| 40 | 20 to 80 | 20 to 70 | 20 to 55 | 20 to 80 | 22 to 82 | 20 to 80 | 22 to 82 | 20 to 80 | 20 to 65 | 20 to 55 | 20 to 79 | 22 to 81 | |||||||
| 44 | 20 to 85 | 20 to 70 | 20 to 55 | 20 to 85 | 22 to 92 | 20 to 85 | 22 to 92 | 20 to 80 | 20 to 70 | 20 to 55 | 20 to 84 | 22 to 86 | |||||||
| 48 | 20 to 85 | 20 to 70 | 20 to 55 | 20 to 85 | 22 to 95 | 20 to 85 | 22 to 95 | 20 to 85 | 20 to 70 | 20 to 55 | 20 to 85 | 22 to 95 | |||||||
| 50 | 20 to 85 | 20 to 70 | 20 to 55 | 20 to 85 | 22 to 95 | 20 to 85 | 22 to 95 | 20 to 85 | 20 to 70 | 20 to 55 | 20 to 85 | 22 to 95 | |||||||
| 60 | 20 to 85 | 20 to 70 | 20 to 55 | 20 to 85 | 22 to 95 | 20 to 85 | 22 to 95 | 20 to 85 | 20 to 70 | 20 to 55 | 20 to 85 | 22 to 95 | |||||||
| [NG] Shaft Bore Dia. 51 to 54 are not available for Shaft Bore Spec. N. [NG] Shaft Bore Dia. 13, 14, 17, or 21 to 55 are not available for Shaft Bore Spec. C. | |||||||||||||||||||
Alterations
| Part number | — | Pulley Shape | — | Shaft Bore Specs.: I.D. | — | Z | — | J | — | Q | — | R | — | S | — | T | — | (KC90, etc.) | |||||
| BLPA36S8M250 | — | A | — | H65 | — | NFC | |||||||||||||||||
| Alterations | Set Screw Angle Change | No Flange | Single Flange | Flange Cut | ||||
| Code | KC90 | NFC | RFC·LFC | FC | ||||
| Spec. | Changes an angle of set screw to 90°. [ ! ] For A-Shape pulley, the screw holes are set at around 90° to keep away from peaks. |  | (Flange 2 pcs. Included) Ordering Code NFC  | (Flange 1 pc. Included) Ordering Code RFC  | Cut the flange O.D. in 0.5 mm increments. Ordering Code FC17 Application Notes [ ! ]FC ≥ (O. D.) +1 [ ! ]FC ≤ F－2 [ ! ] No surface treatment is applied on flange circumference. |  | ||
| Alterations | Retaining Ring Groove | Taper for Bearing Holder | Hub Shortening | Tapped Hole Dimensions | Included Set Screw Length Change | ||||||||||||||||||||||||
| Code | SRG | BTC | BC | TPC | SLH | ||||||||||||||||||||||||
| Spec. | Retaining Ring Groove applicable to the shaft dia. of stepped hole is machined. Specify SRG 2.5 to 40.5 mm 0.5 mm Increments Applicable Conditions [ ! ] Minimum Thickness: 2 mm [ ! ] Applicable to Shaft Bore Specs. V and F only [ ! ] Standards of retaining ring groove for Z dim. is applied Ordering Code SRG7  | Taper for retaining bearing inner ring Ordering Code BTC12-TL3 Application Notes [ ! ] Applicable to Shape A only [ ! ] Applicable to Shaft Bore Specs. H and P only [ ! ]LT < L－W [ ! ] When E-D ≤ 6, one side installed and 1 pc. of flange included  | Cuts the hub length in 0.5 mm increments. Ordering Code BC6.5 Application Notes [!] Shaft Bore Specs. H, V, F: 3 ≤ BC < L－W [!] Shaft Bore Specs. P, N, C: M+3 ≤ BC < L－W [NG] Not applicable to Shape A  | Ordering Code TPC5 Application Notes [ ! ] Applicable to Shaft Bore Specs. P, N, C only
| Ordering Code SLH10 Application Notes [ ! ] Applicable to Shaft Bore Specs. P, N, C only
|
| Alterations | Add Side Holes [!] Conditions may vary depending on the shaft bore specs. | ||
| Side Tapped Hole | Side Through Hole | Side Counterbored | |
| Code | QTC·QFC·QSC | KTC·KFC·KSC | ZTC·ZFC·ZSC |
| Spec. | Machines tapped hole on the side surface of hub side. Ordering Code QTC28-M4 Q□C Selection Specify the hole position (P. C. D. dim.). M Selection M3, M4, M5, M6, M8 Application Notes [ ! ] Minimum Thickness: 2 mm [!] Conditions may vary depending on the shaft bore specs. | Machines through hole on the side surface. Ordering Code KTC28－K4.5 K□C Selection Specify the hole position (P. C. D. dim.). Specify K K4.0 to 13.0 (0.5 mm Increments) Application Notes [ ! ] Minimum Thickness: 2 mm [!] Conditions may vary depending on the shaft bore specs. | Machines counterbored hole on the side surface. Ordering Code ZTC28－ZM4 Z□C Selection Specify the hole position (P. C. D. dim.). ZM Selection ZM3, ZM4, ZM5, ZM6, ZM8 Application Notes [ ! ] Minimum Thickness: 2 mm [!] Conditions may vary depending on the shaft bore specs. |
(6 Locations) (4 Locations) (3 Locations)  | (6 Locations) (4 Locations) (3 Locations)  | (6 Locations) (4 Locations) (3 Locations)  | |
Seznam čísel dílů
| Číslo dílu |
|---|
Jednotková cena (bez DPH)(Jednotková cena včetně DPH) | Standardní datum odeslání |
|---|
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Podrobné údaje
Základní informace
Pozor
- Please note that the swaged flange options, NFC, RFC, and LFC, are not reflected in the CAD data.
Náčrt a specifikace
Specifications/Overview
● Non-backlash pulley has reduced backlash compared to conventional type to work with high accuracy positioning mechanism.
● Backlash is significantly smaller than standard S8M pulleys.
(The amount reduced depends on applications.)
● Use regular S8M timing belt.
Reference: Comparison of Deviation Angles between Non-Backlash Pulleys and Standard Pulleys
| Belt Type : S8M | ||
| Belt Width: 25 mm | ||
| Pulley Size : 30 Toothed (P.D.76.39 mm) | ||
| Tension Ti: 382 N |
General Information - Toothed Pulleys/Timing Pulleys/Idler Pulleys
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
(1) Idler pulleys, (2) chain tensioner
Application example: deflection roller
S (1) Toothed pulleys with crimp disc, (2) nut, (3) washer, (4) cantilever shaft, (5) retaining ring
Application example: timing pulleys
(1) Flat head screw, (2) Timing pulley, (3) Timing belt, (4) Screw-on terminal
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
