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Roller Chain Sprockets - B-Type, Keyless, 35B/40B Series

Roller Chain Sprockets - B-Type, Keyless, 35B/40B Series

The strength of shafts is not deteriorated because machining to shafts (i.e. keyways, etc.) is not required. And positioning is easy.

  • inCAD Components

PDFP.2019-1518

Unit examples related to this product
Keyless Sprockets - 35B/40B Series:Related Image
・Materials
TypeSprocketsBushing
[ M ]Material[ S ]Surface Treatment[ M ]MaterialOperating Temp.
LFSP35B, LFSP40B1045 Carbon Steel
(Induction Hardened Teeth Tip)
-1045 Carbon Steel-20~80°C
BLFSP35B, BLFSP40BBlack Oxide

Specifications

Part Number-D-Shape
LFSP35B16-15-A
■35B Series For Chains >> P.1283
Part NumberShaft Bore Dia. DH7ShapeDpDoHLt
TypeNumber of Teeth
LFSP35B
BLFSP35B
1210A


B
36.8041*30.5204.3
131039.8044*32
14101242.814732
15101245.815135
161012151648.825437
181215161754.856044
201215161718202260.896650
[ ! ]Sprockets with Number of Teeth 12 for A Shape only. Sprockets marked with *have grooves on hub O.D.
■Bushing Performance
Shaft Bore Dia. dMaximum Allowable Torque N·m {kgf·m}Allowable Thrust Load kN {kgf}ScrewsScrew Tightening Torque N·m {kgf·m}Tapped Hole for Removal
Qty.Size
1039{4.0}5.34
{545}
3M4x164.0{0.41}M4x2
1248{4.9}
1578{7.95}4M4x18
1683{8.5}
1788{9.0}
18154{15.7}8.74
{895}
M5x208.3{0.85}M5x2
20171{17.4}
22186{19.16}
25216{21.8}
[ ! ]In the event that transmissible torque exceeds values in the above table, shaft could slip, resulting in serious danger. Make sure that it is used within the allowable torque range.
■Bushing Dimension Table
Shaft Bore Dia. dD1D2D3d1(L1)L2
103022124.510.516.55
12322414
15362817.612226
16372918.613237
17383019.6
18433320.65.514
20463623.4
22483824.6
25524228.4
· Shaft tolerance g6, shaft surface roughness Ra6.3 are standard.
· When there is key groove machining or D cut on the installation shaft, transmitting torque is reduced by approximately 15% or more.
■40B Series For Chains >> P.1284
Part NumberShaft Bore Dia. DH7ShapeDpDoHLt
TypeNumber of Teeth
LFSP40B
BLFSP40B
1212151617A


B
49.0755*40227.2
1312151653.075937
141215161757.076342
1512151617182061.086746
1615161718202265.107150
1715161718202269.127654
181516171820222573.148057
191516171820222577.168462
201516171820222581.18886725
Sprockets marked with * have grooves on hub O.D.

Part Number 

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Part Number
BLFSP35B12-10-A
BLFSP35B13-10-[A,​B]
BLFSP35B14-[10,​12]-[A,​B]
BLFSP35B15-[10,​12]-[A,​B]
BLFSP35B16-[10,​12,​15,​16]-[A,​B]
BLFSP35B18-[12,​15,​16,​17]-[A,​B]
BLFSP35B20-[12,​15,​16,​17,​18,​20,​22]-[A,​B]
LFSP35B12-10-A
LFSP35B13-10-[A,​B]
LFSP35B14-[10,​12]-[A,​B]
LFSP35B15-[10,​12]-[A,​B]
LFSP35B16-[10,​12,​15,​16]-[A,​B]
LFSP35B18-[12,​15,​16,​17]-[A,​B]
LFSP35B20-[12,​15,​16,​17,​18,​20,​22]-[A,​B]
Part NumberMinimum order quantityVolume DiscountDays to Ship RoHSFor Chain No. (Chain Pitch) Bore Dia. D (or d)
(mm)
Number of Teeth
(T)
Surface Treatment Shape Selection
1 Piece(s)

10 Days or more

1035B (3/8" pitch)1012Black OxideA
1 Piece(s)

10 Days or more

1035B (3/8" pitch)1013Black OxideA / B
1 Piece(s)

10 Days or more

1035B (3/8" pitch)10 ~ 1214Black OxideA / B
1 Piece(s)

10 Days or more

1035B (3/8" pitch)10 ~ 1215Black OxideA / B
1 Piece(s)

10 Days or more

1035B (3/8" pitch)10 ~ 1616Black OxideA / B
1 Piece(s)

10 Days or more

1035B (3/8" pitch)12 ~ 1718Black OxideA / B
1 Piece(s)

10 Days or more

1035B (3/8" pitch)12 ~ 2220Black OxideA / B
1 Piece(s)

10 Days or more

1035B (3/8" pitch)1012NoneA
1 Piece(s)

10 Days or more

1035B (3/8" pitch)1013NoneA / B
1 Piece(s)

10 Days or more

1035B (3/8" pitch)10 ~ 1214NoneA / B
1 Piece(s)

10 Days or more

1035B (3/8" pitch)10 ~ 1215NoneA / B
1 Piece(s)

10 Days or more

1035B (3/8" pitch)10 ~ 1616NoneA / B
1 Piece(s)

10 Days or more

1035B (3/8" pitch)12 ~ 1718NoneA / B
1 Piece(s)

10 Days or more

1035B (3/8" pitch)12 ~ 2220NoneA / B

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More Information

■Note on Installation
· Tighten the bushing screws after inserting the shaft. (Bushing may deform if the screws are tightened before inserting the shaft.)
· Use torque wrench to tighten screws.
· Do not use screws other than included.
■Installation
① Wipe off the shaft surface and lightly apply oil or grease. (Do not use any oil or grease containing molybdenum type antifriction agent.)
② Please completely wipe off sprocket and bushing contact surfaces also before lubricating with oil or grease. Please lubricate screw and seating surfaces in the same manner.
③ Subassemble sprocket and bushing before inserting into shaft. (Do not tighten the screws on the bushing before inserting into shaft.)
④ After locating, tighten the lock screws using a torque wrench in the diagonal line order, beginning lightly (approx. 1/4 of the predetermined tightening torque).
⑤ Tighten the screws further to an increased torque (approximately 1/2 specified torque).
⑥ Tighten with the predetermined tightening torque.
⑦ Finally, tighten the screws to the listed torque values in a circumferential order.
■Removal
· Be sure the system is completely shut down before starting work.
· Loosen the tightening screws in circumferential order.
· Insert a screw in a screw hole for removal and tighten evenly.
· Repeat "Installation" process for re-installation.
 

Basic Information

Sprocket Shape Shape B Number of Tracks Single Row Material 1045 Carbon Steel (Spurs are Induction Hardened)
Bore Style with Keyless Bushings Chain Type RS Shaft Type Surface Pressure

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Tech Support

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