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BL

Perpendicular

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The holder made of high strength zinc alloy is connected perpendicularly to the shank incorporated with a ball.
With a grease pocket formed on the top and bottom of the spherical area, this model achieves high lubricity and high wear resistance.
*THK standard link balls are for machine applications only. The products listed below are not recommended for automotive applications.

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In stock

*Please contact THK if you need more than available quantity or out of stock items

Attributes	Part Number	CAD	Online Store Unit Price (USD)	Days to Ship	Holder Thread Direction	Thread Size (mm)
Holder Thread Direction: Right-Hand Thread Size (mm): M4 x 0.7	BL4DA	CAD	–	Days to Ship: 3 - 4 weeks	Holder Thread Direction: Right-Hand	Thread Size (mm): M4 x 0.7
Holder Thread Direction: Left-Hand Thread Size (mm): M4 x 0.7	BL4DAL	CAD	–	Days to Ship: 3 - 4 weeks	Holder Thread Direction: Left-Hand	Thread Size (mm): M4 x 0.7
Holder Thread Direction: Right-Hand Thread Size (mm): M5 x 0.8	BL5DA	CAD	–	Days to Ship: 3 - 4 weeks	Holder Thread Direction: Right-Hand	Thread Size (mm): M5 x 0.8
Holder Thread Direction: Left-Hand Thread Size (mm): M5 x 0.8	BL5DAL	CAD	–	Days to Ship: 3 - 4 weeks	Holder Thread Direction: Left-Hand	Thread Size (mm): M5 x 0.8
Holder Thread Direction: Right-Hand Thread Size (mm): M6 x 1	BL6D	CAD	–	Days to Ship: 1 - 3 days	Holder Thread Direction: Right-Hand	Thread Size (mm): M6 x 1
Holder Thread Direction: Left-Hand Thread Size (mm): M6 x 1	BL6DL	CAD	–	Days to Ship: 1 - 3 days	Holder Thread Direction: Left-Hand	Thread Size (mm): M6 x 1
Holder Thread Direction: Right-Hand Thread Size (mm): M8 x 1.25	BL8D	CAD	–	Days to Ship: 1 - 3 days	Holder Thread Direction: Right-Hand	Thread Size (mm): M8 x 1.25
Holder Thread Direction: Left-Hand Thread Size (mm): M8 x 1.25	BL8DL	CAD	–	Days to Ship: 1 - 3 days	Holder Thread Direction: Left-Hand	Thread Size (mm): M8 x 1.25
Holder Thread Direction: Right-Hand Thread Size (mm): M10 x 1.5	BL10BD	CAD	–	Days to Ship: 1 - 3 days	Holder Thread Direction: Right-Hand	Thread Size (mm): M10 x 1.5
Holder Thread Direction: Left-Hand Thread Size (mm): M10 x 1.5	BL10BDL	CAD	–	Days to Ship: 1 - 3 days	Holder Thread Direction: Left-Hand	Thread Size (mm): M10 x 1.5
Holder Thread Direction: Right-Hand Thread Size (mm): M10 x 1.25	BL10D	CAD	–	Days to Ship: 3 - 4 weeks	Holder Thread Direction: Right-Hand	Thread Size (mm): M10 x 1.25
Holder Thread Direction: Left-Hand Thread Size (mm): M10 x 1.25	BL10DL	CAD	–	Days to Ship: 3 - 4 weeks	Holder Thread Direction: Left-Hand	Thread Size (mm): M10 x 1.25
Holder Thread Direction: Right-Hand Thread Size (mm): M12 x 1.75	BL12BD	CAD	–	Days to Ship: 1 - 3 days	Holder Thread Direction: Right-Hand	Thread Size (mm): M12 x 1.75
Holder Thread Direction: Left-Hand Thread Size (mm): M12 x 1.75	BL12BDL	CAD	–	Days to Ship: 1 - 3 days	Holder Thread Direction: Left-Hand	Thread Size (mm): M12 x 1.75
Holder Thread Direction: Right-Hand Thread Size (mm): M12 x 1.25	BL12D	CAD	–	Days to Ship: 3 - 4 weeks	Holder Thread Direction: Right-Hand	Thread Size (mm): M12 x 1.25
Holder Thread Direction: Left-Hand Thread Size (mm): M12 x 1.25	BL12DL	CAD	–	Days to Ship: 3 - 4 weeks	Holder Thread Direction: Left-Hand	Thread Size (mm): M12 x 1.25
Holder Thread Direction: Right-Hand Thread Size (mm): M14 x 2	BL14BD	CAD	–	Days to Ship: 3 - 4 weeks	Holder Thread Direction: Right-Hand	Thread Size (mm): M14 x 2
Holder Thread Direction: Left-Hand Thread Size (mm): M14 x 2	BL14BDL	CAD	–	Days to Ship: 3 - 4 weeks	Holder Thread Direction: Left-Hand	Thread Size (mm): M14 x 2
Holder Thread Direction: Right-Hand Thread Size (mm): M14 x 1.5	BL14D	CAD	–	Days to Ship: 3 - 4 weeks	Holder Thread Direction: Right-Hand	Thread Size (mm): M14 x 1.5
Holder Thread Direction: Left-Hand Thread Size (mm): M14 x 1.5	BL14DL	CAD	–	Days to Ship: 3 - 4 weeks	Holder Thread Direction: Left-Hand	Thread Size (mm): M14 x 1.5

Specifications


Model No.	Outer dimensions			ThreadedS₁JIS Class 2	Holder dimensions						Ball shank dimensions						Ball diameterDa	Permissible tilt angles2θ°	Applied static loadC_s	Yield point strengthP_k	Mass
	LengthL	DiameterD	HeightM		L₁	l	L₂	D₁	D₂	W0-0.3	d₂h9	M₁	M₂±0.3	l₁	HexagonB0-0.3	d₄
	LengthL	DiameterD	HeightM		L₁	l	L₂	D₁	D₂	W0-0.3	d₂h9	M₁	M₂±0.3	l₁	HexagonB0-0.3	d₄
	mm	mm	mm		mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	degree	N	N	g
BL4DA	24.5	13	20	M4×0.7	18	8	4	7.5	9.5	8	4	15	7	6	7	8.1	7.938	40	4510	1370	7
BL5DA	34.5	15	26.7	M5×0.8	27	15	4	9	12	10	5	21	10	8	8	9.2	9.525	40	6470	2250	12
BL6D	38	16	32.6	M6×1	30	16	5	10	13	11	6	26	11	11	10	11.6	11.112	40	9900	3920	26
BL8D	45.5	19	38.6	M8×1.25	36	19	6	12.5	16	14	8	31	14	12	12	13.8	12.7	40	12500	6570	49
BL10D	55.5	25	46.3	M10×1.25	43	23	7	14.5	19	17	10	37	17	15	14	16.2	15.875	40	18300	11300	87
BL10BD	55.5	25	52.3	M10×1.5	43	23	7	14.5	19	17	10	43	17	21	14	16.2	15.875	40	18300	11300	90
BL12D	64.5	29	52.7	M12×1.25	50	26	8	17.5	22	19	12	42	19	17	17	19.6	19.05	40	26700	16400	143
BL12BD	64.5	29	59.7	M12×1.75	50	26	8	17.5	22	19	12	49	19	24	17	19.6	19.05	40	26700	16400	148
BL14D	74	34	68.4	M14×1.5	57	30	10	20	25	22	14	56	21.5	22	19	21.9	22.225	40	36400	19800	235
BL14BD	74	34	74.4	M14×2	57	30	10	20	25	22	14	62	21.5	28	19	21.9	22.225	40	36400	19800	245
BL16D	83	38	74	M16×1.5	64	34	11	22	27	24	16	60	23.5	23	22	25.4	22.225	30	36400	26900	315
BL16BD	83	38	80	M16×2	64	34	11	22	27	24	16	66	23.5	29	22	25.4	22.225	30	36400	26900	325

Model Number Coding

Note 1: Fine thread for automotive applications Note 2: No model is available without a boot Note 3: Applies to holder unit, shank side is always right-handed thread
Model	Size	Thread	Boot	Holder material	Screw
BL	16	B	D

BL	4	No symbol : Fine thread¹	D : With boot attached²	A : A-1 alloy (for sizes 4 and 5)	No symbol : Right-hand thread
	5	B : Coarse thread		No symobol : High strength zinc alloy (for sizes 6 to 16)	L : Left-hand thread³
	6
	8
	10
	12
	14
	16