Sprockets for Large Size Conveyor Chains Fit bore

- Sprocket for Large Size Conveyor Chain
- Fit Bore Sprockets have finished bores.
- It can be used immediately upon delivery.
- Machining contents are coded, so you can easily order by just using the model number.
Features
- ・The content of shaft bore and keyway machining is coded with the product model name, so that the customer's requirements can be accurately transferred.
- ・Shaft bore, keyway and tapped holes have already been machined, so the product can be used as is after arrival at the customer's premises.
- ・You can select the indicator pins type as an option that allows you to see the tooth's limit of usage at a glance.
Catalogs ・Instruction Manuals
Model No. examples
RF17200S12T-BW1 | Q | - | H | 090 | N | - | J | 25 | D3 | M16 | - | L2 | - | E | - | H1 | |
| Main Body Code |
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| Shaft bore tolerance H:H8 |
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| Shaft bore chamfer N:Tsubaki standard A:C1 B:C2 C:C3 |
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| Keyway tolerance |
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| Tap size |
| Paint symbol (2) |
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| Parallel symbol (3) |
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Tooth hardening N:Teeth not hardened Q:Hardened teeth specifications |
Keyway tolerance W:Without keyway J:New JIS Js9 P:New JIS P9 E:Old JIS E9 |
tap hole machining package (1) |
Indicator pins Blank :None E:Indicator pins |
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Shaft Bore Diameter mm |
(1) tap hole machining package | (3) Parallel symbol *2 pieces in a set | |||||
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![]() ※In the case of H1 and H3 in parallel use, D4 and D5 cannot be selected because the tap arrangement is different for half in mirror image. |
Image diagram of hub mounting direction ![]() ※For H1 and H3, half of the taps are placed for half in mirror image. Half in mirror image General use sprockets used in parallel are machined with a symmetrical tap arrangement. Example: In case of □□□D3M16-H1, one is D3 (key top and right 120°) and the other is D4 (key top and left 120°) ![]() |
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(2) Paint symbol | ||||||
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List of Models
Metric pitches
Model No. | R-roller | F-roller | S-roller | |||||||||
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Number of teeth | Number of teeth | Number of teeth | ||||||||||
6 | 8 | 10 | 12 | 6 | 8 | 10 | 12 | 6 | 8 | 10 | 12 | |
RF03075 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF03100 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF05075 | - | - | - | - | - | - | - | - | - | ● | ● | ● |
RF05100 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF05125 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF05150 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF08125 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF08150 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF10100 | ● | ● | ● | ● | - | - | - | - | ● | ● | ● | ● |
RF10125 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF10150 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF12200 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF12250 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF17200 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF17250 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF17300 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
Imperial pitches
Model No. | R-roller | F-roller | S-roller | |||||||||
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Number of teeth | Number of teeth | Number of teeth | ||||||||||
6 | 8 | 10 | 12 | 6 | 8 | 10 | 12 | 6 | 8 | 10 | 12 | |
RF430 | ● | ● | ● | ● | - | - | - | - | ● | ● | ● | ● |
RF204 | - | - | - | - | - | - | - | - | - | ● | ● | ● |
RF450 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF650 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF214 | ● | ● | ● | ● | - | - | - | - | ● | ● | ● | ● |
RF205 | - | - | - | - | - | - | - | - | - | ● | ● | ● |
RF6205 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
RF212 | ● | ● | ● | ● | - | - | - | - | ● | ● | ● | ● |
Machining contents
※Click the name for more information.
shaft bore machining (L) | Keyway machining (K) | Tap hole machining (D) |
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・Machined dimensions are integers only in 1mm units ・Machining tolerance ・・・H8 only |
・Parallel keyway only
・Machining tolerance ・・・Selectable |
・Machining size Selectable ・Machining location (up to 2 locations) Selectable ・Hexagon socket set screw included (recessed tip) |
Shaft bore machining dimensions list
For Js9/P9 (new JIS standards)
Applicable Shaft Bore Diameter (mm) |
Keyway Width (mm) |
Tap size (Tsubaki standard ) |
Available sizes |
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19~22 | 6 | M6 | M5 |
22~30 | 8 | M6 | M5, M8 |
30~38 | 10 | M8 | M6, M10 |
38~44 | 12 | M8 | M6, M10 |
44~50 | 14 | M8 | M6, M10 |
50~58 | 16 | M10 | M8, M12 |
58~65 | 18 | M10 | M8, M12 |
65~75 | 20 | M12 | M10, M16 |
75~85 | 22 | M12 | M10, M16 |
85~95 | 25 | M16 | M12, M20 |
95~110 | 28 | M16 | M12, M20 |
110~130 | 32 | M20 | M16 |
130~150 | 36 | M20 | M16 |
150~170 | 40 | M20 | M16 |
170~175 | 45 | M24 | M20 |
For E9 (old JIS)
Applicable Shaft Bore Diameter (mm) |
Keyway Width (mm) |
Tap size Tsubaki standard |
Available sizes |
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19~20 | 5 | M5 | M4 |
21~30 | 7 | M6 | M5 |
31~40 | 10 | M8 | M6, M10 |
41~50 | 12 | M8 | M6, M10 |
51~60 | 15 | M8 | M6, M10 |
61~70 | 18 | M10 | M8, M12 |
71~80 | 20 | M12 | M10, M16 |
81~95 | 24 | M12 | M10, M16 |
96~110 | 28 | M16 | M12, M20 |
111~125 | 32 | M20 | M16 |
126~140 | 35 | M20 | M16 |
141~160 | 38 | M20 | M16 |
161~175 | 42 | M20 | M16 |
Applicable Shaft Bore Diameter (mm) | Chamfering |
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~50 | C0.6 |
51~80 | C1 |
81~120 | C1.6 |
121~175 | C2 |
Shaft Bore Diameter | Chamfer code | |||
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~44 | N | A | B | - |
45~ | N | A | B | C |
L0 | No painting (Rust-preventive oil lubricated) |
L1 | Lacquer painting (Standard product paint color) |
L2 | Lacquer painting (Indicator pins type paint color) |
・For Indicator pins type with paint, L2: Blue color.

E | Indicator pins |
Blank | None |
- ・Brass pin embedded specification.
- ・Embedded in two teeth on both sides of the sprocket teeth at two locations / 0° and 180° as a guide.
If a keyway is machined, one location is embedded in the tooth above the keyway.

H1 | Hub mounting direction :Inside-Inside |
H2 | Hub mounting direction :Same direction |
H3 | Hub mounting direction :Outside-Outside |
Blank | None |
- ・For parallel use, when two sprockets are used on the same axis, the keyway positions are machined to match in the specified mounting direction.
- ・Select the hub mounting direction from the three patterns shown below.
Image diagram of hub mounting direction

others
Limitations |
Delivery drawings cannot be submitted. (Please use the following drawing library) Please contact us for inspection report and mill sheet. (If submission is required, it will be treated as a made-to-order item. |
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Drawing Library Sprocket for large size conveyor chains Fit bore
※ | The CAD data contained herein is made available to you via the CAD drawing library; PARTcommunity is provided by CADENAS WEB2CAD Co. |
※ | Please direct your inquiries regarding the CAD data service or PARTcommunity to: CADENAS WEB2CAD Co. TEL: +81 (3) 5961-5031 FAX: +81 (3) 5961-5032 |