Sprockets for Large Size Conveyor Chains 　Fit bore 

Product photo
  • 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 		｜
｜
｜		 ｜
Shaft bore tolerance
H：H8 		｜
｜
｜
｜
｜
｜		 ｜
Shaft bore chamfer
N：Tsubaki standard
A：C1
B：C2
C：C3 		｜
｜
｜		 ｜
Keyway tolerance 		｜
｜
｜		 ｜
Tap size 		｜
Paint symbol
(2) 		｜
｜
｜		 ｜
Parallel symbol
(3)
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
Shaft Bore Diameter
mm
(1) tap hole machining package (3) Parallel symbol *2 pieces in a set

※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.
(See parallel symbol for half in mirror image )
  • Blank ：None
  • H1：Hub mounting direction ：Inside-Inside
  • H2：Hub mounting direction ：Same direction
  • H3：Hub mounting direction ：Outside-Outside
  • ※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

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°)

Half in mirror image
(2) Paint symbol
L0 No painting (Rust-preventive oil lubricated)
L1 Lacquer painting (Standard product paint color)
L2 Lacquer painting (Indicator pins type paint color)
Paint symbol

List of Models

Metric pitches

Model No. R-roller F-roller S-roller
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
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.

Finishing range

shaft bore machining (L) Keyway machining (K) Tap hole machining (D)

・Machined dimensions are integers only in 1mm units
Inch dimensions are not applicable

・Machining tolerance ・・・H8 only

・Parallel keyway only

・Machining tolerance ・・・Selectable
Js9 ・ P9 ・ E9
Keyway width and depth are in accordance with JIS standards

・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
19～226M6M5
22～308M6M5, M8
30～3810M8M6, M10
38～4412M8M6, M10
44～5014M8M6, M10
50～5816M10M8, M12
58～6518M10M8, M12
65～7520M12M10, M16
75～8522M12M10, M16
85～9525M16M12, M20
95～11028M16M12, M20
110～13032M20M16
130～15036M20M16
150～17040M20M16
170～17545M24M20

For E9 (old JIS)

Applicable Shaft Bore Diameter
(mm)		 Keyway Width
(mm)		 Tap size
Tsubaki standard 		Available sizes
19～205M5M4
21～307M6M5
31～4010M8M6, M10
41～5012M8M6, M10
51～6015M8M6, M10
61～7018M10M8, M12
71～8020M12M10, M16
81～9524M12M10, M16
96～11028M16M12, M20
111～12532M20M16
126～14035M20M16
141～16038M20M16
161～17542M20M16

Tsubaki standard chamfer

Applicable Shaft Bore Diameter (mm) Chamfering
～50 C0.6
51～80 C1
81～120 C1.6
121～175 C2

Selectable chamfer

Determined from keyway depth (chamfer amount not exceeding keyway depth)
Shaft Bore Diameter Chamfer code
～44NAB-
45～NABC

Paint symbol

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.

Paint symbol

Indicator pins

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.

Indicator pins

Parallel symbol

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

Image diagram of hub mounting direction

others

Limitations

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.

Drawing Library 　Sprocket for large size conveyor chains 　Fit bore 

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