BF Precision Locknut – Flank Locking

Category:
Description

The locknut setscrews intersect at a 30° angle which drives the locking brass to stick perfectly on the shaft’s thread flank.

  • No thrust washer or keyway needed.
  • Easy to assemble and disassemble.
  • Can be re-used if handled properly.
  • The connecting face and thread area are all produced by high precision grinding process.

BF Precision Locknut detail

  • Material:JIS SCM440/DIN42CrMo4/AISI 414
  • Hardness:HRC 28-32
  • Precision:ISO 4H
  • The maximum runout between locating face and thread is 0.002 mm
TYPE & Pitch
Dimensions Axial Load Static Loosening Torque Screw Screw Torque
D h g t d kN kg-cm DIN MAX kg-cm
BF15x1.0P
30 25 14 3X4 2 60 250 M5 48
BF17 x 1.0P
32 27 16 70 300
BF20X1.0P
38 33 90 400 M6 80
BF20X1.5P
90 400
BF25X1.5P
18 3X5 120 800
BF30X1.5P
45 40 145 1400
BF35 x 1.5P
52 47 170 1800 M8 190
BF40 x 1.5P
58 52 20 3X6 2.5 190 2200
BF45 x 1.5P
65 59 220 2500
BF50 x 1.5P
70 64 250 2700
BF55 x 2.0P
75 68 22 3X7 3 310 2900
BF60 x 2.0P
80 73 350 3100
BF65 x 2.0P
85 78 400 3200
BF70 x 2.0P
92 84 24 3X8 3.5 450 3400
BF75 x 2.0P
98 90 480 3600
BF80 x 2.0P
105 96 580 3800
BF85 x 2.0P
110 102 620 4000
BF90 x 2.0P
120 108 26 6X10 4 680 4500
BF95 x 2.0P
125 113 720 4750
BF100 x 2.0P
130 118 740 5000
BF105 x 2.0P
140 125 28 770 5250 M10 360
BF110 x 2.0P
145 132 800 5500
BF115 x 2.0P
150 137 830 5750
BF120 x 2.0P
155 142 30 6X12 5 860 6000
BF125 x 2.0P
160 147 890 6250
BF130 x 2.0P
165 152 920 6500
BF135 x 2.0P
175 160 32 950 6750
BF140 x 2.0P
180 165 980 7000
BF145 x 2.0P
190 175 1010 7250
B150 x 2.0P
195 180 1050 7500
BF155 x3.0P
200 34 6X14 6 1100 7750
BF160 x 3.0P
210 190 1200 8000
BF165 x 3.0P
1230 8250
BF170 x 3.0P
220 200 1260 8500
BF180 x 3.0P
230 205 36 6X16 7 1370 9000 M12 600
BF190 x 3.0P
240 215 1430 9500
BF200 x 3.0P
250 225 38 1500 9900

Remark

  • When ordering above products, please refer to the TYPE & Pitch.
  • If left hand thread required, please notify “L” after the TYPE & Pitch. For example:BF25X1.5P-L
  • If inch thread required, please refer to the TYPE & Pitch. For example:BF25-U20
  • To prevent the locknuts are in short supply, please send your order in advance.
Packing&Shipping & Delivery

china Packing Shipping Delivery

Packing Shipping Delivery

Chains package: First we will use carton package the chains--------then put in wooden box.
We also can custom color package according to your demand
Company Profile
Company Profile
FAQ

How to choose power transmissions parts and industrial products which meet our requirement

Chains Sprockets Pulleys Timing belt Pulley V-belt Pulley
Sheaves Coupings Bush &Hub Gear& Rack V-Belt
Locking Assembly Pulley Gearbox Reducer Shaft Collar
Rod End Bearing Clevis PTO Chain Guide Belt Guide
Rubber Buffer Chain Tensioner PTO Drive Shafts Universal Joints Roller Chains
Conveyor Chains V-Belts Worm Gearbox Helical Gear Worm
Agricultural Chain CNC Proces Parts Casting Stamping
Powder Metallurgy CNC Proces Parts Casting Stamping

What Products Do you sell ? 

We  are a group of factories, give customer one stop solution of power transmission and industrial products. We are in the position to supply wide range of products, including chains, sprockets, v-belt and v-belt pulleys, timing belt and timing belt pulleys, gears, speed reducers, motors, racks, couplings, and many other parts, like locking assembly, taper bushing, Chain guide, shaft collar, torque limiter, cam clutch, universal joint, motor base and motor slide, rod end, clevis, rubber mount, etc. We make special parts according to drawings and/or samples.

How to choose a gearbox which meets our requirement?
You can refer to our catalogue to choose the gearbox or we can help to choose when you provide
the technical information of required output torque, output speed and motor parameter etc.

What information shall we give before placing a purchase order?
a) Type of the gearbox, ratio, input and output type, input flange, mounting position, and motor informationetc.
b) Housing color.
c) Purchase quantity.
d) Other special requirements.

What industries are your gearboxes being used?
Our gearboxes are widely used in the areas of textile, food processing, beverage, chemical industry,
escalator,automatic storage equipment, metallurgy, tabacco, environmental protection, logistics and etc.

What is the producing process?

Production process including raw material cutting, machine processing, grinding, accessories cleaning, assemble, cleaning, stoving, oil coating, cover pressing, testing, package.

How to control the products quality?

Combining advanced equipment and strict management, we provide high standard and quality bearings for our customers all over the world.

What is the transportation?

-If small quantity , we Suggest to send by express, such as DHL,UPS, TNT FEDEX. If large amount, by air or sea shipping.

Can we design packaging?

-Yes. Default is regular packing, and we can make customer's own packing.

Can you provide OEM service?

-Yes, we work on OEM orders. Which means size, quantity, design, packing solution, etc will depend on your requests; and your logo will be customized on our products.

Can you give me discount on Power Transmissions Parts and Industrial parts?

-Yes, of course. Pls. send me your Email, you'll get more

Q: Are You a trading company or a manufacturer?

A: We Are the factory and have our Own trading company

Q: How Can I get an offer?

A: please send US quotation information: drawings, materials, weight, quantity and requirements, we can accept PDF, ISGS, DWG, STEP file format. If you don't have the drawings, please send us the samples, we can also quote you according to your samples.

Q: What is your minimum order size?

A: it is usually 100 pieces, but a low quantity is acceptable under some special circumstances.

Q: Do you provide samples? Is it free or extra?

A: Yes, we can provide samples free of charge, but we don't pay the freight.

Q: What is the lead time for mass production?

A: honestly, it depends on the number of orders. Normally, if you don't need the tools, deposit them after 30 days or so.

Q: What if the parts don't Work?

A: we can guarantee the quality, but if it happens, please contact us immediately, take some photos, we will check the problem and solve it as soon as possible.

Q: What are your terms of payment?

A: payment is less than US $1000,100% in advance. Payment: $1000,50% wire transfer in advance, balance before shipment,Other Terms of payment are negotiable